<?xml version="1.0" encoding="UTF-8" ?>
<?xml-stylesheet type="text/xsl" href="https://communities.bentley.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/"><channel><title>Automate The Modeling Of Subgrade Layers With InRoads 8.5</title><link>https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/2253/2253</link><description /><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>Automate The Modeling Of Subgrade Layers With InRoads 8.5</title><link>https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/2253/2253</link><pubDate>Fri, 21 Jun 2013 17:38:40 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:0a93eb5f-9299-4967-a8a0-65e4af4d0208</guid><dc:creator>Elisabeth Pry</dc:creator><comments>https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/2253/2253#comments</comments><description>Current Revision posted to OpenRoads | OpenSite Wiki by Elisabeth Pry on 6/21/2013 5:38:40 PM&lt;br /&gt;
&lt;p&gt;&lt;b&gt;&lt;img style="border-width:0px;" alt="" src="/Other/Old_Site_Files/Bentley_Folders/m/support/17560/download.aspx" width="189" height="60" /&gt;&lt;/b&gt;&lt;/p&gt;
&lt;table style="border:0px solid #dce5f0;width:500px;background-color:#dce5f0;" border="0" align="left"&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&amp;nbsp;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&amp;nbsp;&lt;/b&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;b&gt;&amp;nbsp;&lt;/b&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;span style="font-size:medium;"&gt;&lt;b&gt;Applies To&amp;nbsp;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&amp;nbsp;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&amp;nbsp;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&amp;nbsp;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;InRoads 2004 Edition&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&amp;nbsp;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;08.05.00.00&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&amp;nbsp;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Environment:&amp;nbsp;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;N/A&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&amp;nbsp;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Area:&amp;nbsp;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;N/A&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&amp;nbsp;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Subarea:&amp;nbsp;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;N/A&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&amp;nbsp;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;Original Author:&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;Bentley Technical Support Group&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&amp;nbsp;&lt;/strong&gt;&lt;/td&gt;
&lt;td style="text-align:right;"&gt;&lt;strong&gt;&amp;nbsp;&lt;/strong&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;td&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;h1&gt;Overview&lt;/h1&gt;
&lt;p&gt;Geotechnical data of existing conditions often dictates that designers adjust the thickness of materials to be applied along a corridor by controlling the sublayer profile grade lines independent of the top layer profile grade line.&lt;/p&gt;
&lt;p&gt;In the past, a basic method was used to model sublayers and create separate templates with differing vertical offsets from the original top layer to the sublayers. This method required the following steps:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;1. Create/copy an existing template and edit the vertical offsets to each sublayer.&lt;/li&gt;
&lt;li&gt;2. Select Modeler &amp;gt; Define Roadway and add additional entries that reflect each of the change points in the subgrade.&lt;/li&gt;
&lt;li&gt;3. After making any desired changes, rerun the Modeler.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;While this method accomplished the task, it could be tedious and did not adequately address rapid change of layer thicknesses.&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;h1&gt;New Approach&lt;/h1&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Today a new approach is recommended to better address control of sublayers. First, though, users should be aware of the following rules:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;A transition control point called Centerline exists for each template layer (sublayer) at the centerline of each layer.&lt;/li&gt;
&lt;li&gt;The Centerline transition control name cannot be changed on the centerline point for any layer.&lt;/li&gt;
&lt;li&gt;There is no apparent method to use an independent vertical alignment and attach it to the Centerline transition control on the sublayers.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;In addition, to effectively vary the subgrade, users must understand the following criteria:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Each sublayer must have a unique layer name.&lt;/li&gt;
&lt;li&gt;The literal layer name, including case sensitivity, can actually be used to define the Centerline point for the layer such that for a sublayer named &amp;quot;base&amp;quot;, a transition control likewise named &amp;quot;base&amp;quot; can be called out for special layer controls.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;Based on these criteria, the following workflow effectively enables users to quickly create and modify sublayers to follow a variable depth layer design:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;1. Assign a unique name to each sublayer.&lt;/li&gt;
&lt;li&gt;2. Select Modeler &amp;gt; Define Typical Sections &amp;gt; Transition Control to create new transition controls named exactly the same as the sublayers created in step 1.&lt;/li&gt;
&lt;li&gt;3. Create new vertical alignments that reflect the depth from the actual profile grade line to the specified sublayers. These vertical alignments names should be the same as the template sublayers, must all be children of the main horizontal alignment that is used during the Roadway Modeler run, and be created as vertical difference type alignments. &lt;br /&gt;This process is exactly the same as creating a normal vertical alignment; however, the elevations defined along the alignment are plus and minus elevations relative to the top layer profile grade line. In other words, to have the exact same elevation as the centerline profile grade line, the elevation of the sublayer vertical alignment must be zero. To have a depth of .75 feet below the profile grade line at the top layer centerline, the elevation of the vertical must be -.75-feet.&lt;/li&gt;
&lt;li&gt;4. Select Modeler &amp;gt; Define Roadway &amp;gt; Main &amp;gt; Edit &amp;gt; Horizontal and Vertical Controls to create entries for each sublayer.&lt;/li&gt;
&lt;li&gt;5. Select each independent Transition Control Name and toggle on the Use Vertical Controls option.&lt;/li&gt;
&lt;li&gt;6. Set Define By to Vertical Difference.&lt;/li&gt;
&lt;li&gt;7. Call out the vertical alignment (which is a child of the main centerline horizontal alignment) that matches the sublayer name. Repeat this process for each of the layers to create entries for each sublayer along the corridor.&lt;/li&gt;
&lt;li&gt;8. Select Modeler &amp;gt; Roadway Modeler and run the newly created roadway definition. Make certain to use the correct horizontal mainline and the vertical alignment that are the profile grade line for the top layer in the modeling run.&lt;/li&gt;
&lt;/ul&gt;
&lt;h1&gt;See Also&lt;/h1&gt;
&lt;p&gt;&lt;a href="/Products/w/Products__Wiki/product-technotes-and-faqs.aspx"&gt;Product TechNotes and FAQs&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href="/Products/Road___Site_Design/w/Road_and_Site_Design__Wiki/inroads-product-technotes-faqs-and-support-video-clips.aspx"&gt;InRoads Product TechNotes FAQs And Support Video Clips&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;h1&gt;External Links&lt;/h1&gt;
&lt;p&gt;&lt;a title="KnowledgeBase" href="http://appsnet.bentley.com/kbase/"&gt;Bentley Technical Support KnowledgeBase&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a title="LEARN Server" href="http://lms.bentley.com"&gt;Bentley LEARN Server&lt;/a&gt;&lt;/p&gt;
&lt;h1&gt;Comments or Corrections?&lt;/h1&gt;
&lt;p&gt;Bentley&amp;#39;s Technical Support Group requests that you please confine any comments you have on this Wiki entry to this &amp;quot;Comments or Corrections?&amp;quot; section. THANK YOU!&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;div class="hr"&gt;&lt;/div&gt;
&lt;p&gt;&amp;nbsp; &amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: SELECTservices, TechNote, TN8370, Bentley InRoads v08050000, Bentley InRoads&lt;/div&gt;
</description></item><item><title>Automate The Modeling Of Subgrade Layers With InRoads 8.5</title><link>https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/2253/2253/revision/9</link><pubDate>Wed, 13 Feb 2013 19:54:41 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:0a93eb5f-9299-4967-a8a0-65e4af4d0208</guid><dc:creator>Jacquelyn Pettus</dc:creator><comments>https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/2253/2253#comments</comments><description>Revision 9 posted to OpenRoads | OpenSite Wiki by Jacquelyn Pettus on 2/13/2013 7:54:41 PM&lt;br /&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href="http://selectservices.bentley.com/en-US"&gt;&lt;img src="/Other/Old_Site_Files/Bentley_Folders/m/support/17560/download.aspx" border="0" height="56" width="175" alt="" /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;h1&gt;Document Information&lt;/h1&gt;
&lt;blockquote&gt;
&lt;p&gt;&lt;strong&gt;Document Type:&lt;/strong&gt; TechNote&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&amp;nbsp; Bentley InRoads 2004 Edition&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&amp;nbsp; 08.05.00.00&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Original Author:&lt;/strong&gt; Bentley Technical Support Group&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Legacy Document Number:&lt;/strong&gt; 8370&lt;/p&gt;
&lt;/blockquote&gt;
&lt;h1&gt;Overview&lt;/h1&gt;
&lt;p&gt;Geotechnical data of existing conditions often dictates that designers adjust the thickness of materials to be applied along a corridor by controlling the sublayer profile grade lines independent of the top layer profile grade line.&lt;/p&gt;
&lt;p&gt;In the past, a basic method was used to model sublayers and create separate templates with differing vertical offsets from the original top layer to the sublayers. This method required the following steps:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;1. Create/copy an existing template and edit the vertical offsets to each sublayer.&lt;/li&gt;
&lt;li&gt;2. Select Modeler &amp;gt; Define Roadway and add additional entries that reflect each of the change points in the subgrade.&lt;/li&gt;
&lt;li&gt;3. After making any desired changes, rerun the Modeler.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;While this method accomplished the task, it could be tedious and did not adequately address rapid change of layer thicknesses.&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;h1&gt;New Approach&lt;/h1&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Today a new approach is recommended to better address control of sublayers. First, though, users should be aware of the following rules:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;A transition control point called Centerline exists for each template layer (sublayer) at the centerline of each layer.&lt;/li&gt;
&lt;li&gt;The Centerline transition control name cannot be changed on the centerline point for any layer.&lt;/li&gt;
&lt;li&gt;There is no apparent method to use an independent vertical alignment and attach it to the Centerline transition control on the sublayers.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;In addition, to effectively vary the subgrade, users must understand the following criteria:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Each sublayer must have a unique layer name.&lt;/li&gt;
&lt;li&gt;The literal layer name, including case sensitivity, can actually be used to define the Centerline point for the layer such that for a sublayer named &amp;quot;base&amp;quot;, a transition control likewise named &amp;quot;base&amp;quot; can be called out for special layer controls.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;Based on these criteria, the following workflow effectively enables users to quickly create and modify sublayers to follow a variable depth layer design:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;1. Assign a unique name to each sublayer.&lt;/li&gt;
&lt;li&gt;2. Select Modeler &amp;gt; Define Typical Sections &amp;gt; Transition Control to create new transition controls named exactly the same as the sublayers created in step 1.&lt;/li&gt;
&lt;li&gt;3. Create new vertical alignments that reflect the depth from the actual profile grade line to the specified sublayers. These vertical alignments names should be the same as the template sublayers, must all be children of the main horizontal alignment that is used during the Roadway Modeler run, and be created as vertical difference type alignments. &lt;br /&gt;This process is exactly the same as creating a normal vertical alignment; however, the elevations defined along the alignment are plus and minus elevations relative to the top layer profile grade line. In other words, to have the exact same elevation as the centerline profile grade line, the elevation of the sublayer vertical alignment must be zero. To have a depth of .75 feet below the profile grade line at the top layer centerline, the elevation of the vertical must be -.75-feet.&lt;/li&gt;
&lt;li&gt;4. Select Modeler &amp;gt; Define Roadway &amp;gt; Main &amp;gt; Edit &amp;gt; Horizontal and Vertical Controls to create entries for each sublayer.&lt;/li&gt;
&lt;li&gt;5. Select each independent Transition Control Name and toggle on the Use Vertical Controls option.&lt;/li&gt;
&lt;li&gt;6. Set Define By to Vertical Difference.&lt;/li&gt;
&lt;li&gt;7. Call out the vertical alignment (which is a child of the main centerline horizontal alignment) that matches the sublayer name. Repeat this process for each of the layers to create entries for each sublayer along the corridor.&lt;/li&gt;
&lt;li&gt;8. Select Modeler &amp;gt; Roadway Modeler and run the newly created roadway definition. Make certain to use the correct horizontal mainline and the vertical alignment that are the profile grade line for the top layer in the modeling run.&lt;/li&gt;
&lt;/ul&gt;
&lt;h1&gt;See Also&lt;/h1&gt;
&lt;p&gt;&lt;a href="/Products/w/Products__Wiki/product-technotes-and-faqs.aspx"&gt;Product TechNotes and FAQs&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href="/Products/Road___Site_Design/w/Road_and_Site_Design__Wiki/inroads-product-technotes-faqs-and-support-video-clips.aspx"&gt;InRoads Product TechNotes FAQs And Support Video Clips&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;h1&gt;External Links&lt;/h1&gt;
&lt;p&gt;&lt;a title="KnowledgeBase" href="http://appsnet.bentley.com/kbase/"&gt;Bentley Technical Support KnowledgeBase&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a title="LEARN Server" href="http://lms.bentley.com"&gt;Bentley LEARN Server&lt;/a&gt;&lt;/p&gt;
&lt;h1&gt;Comments or Corrections?&lt;/h1&gt;
&lt;p&gt;Bentley&amp;#39;s Technical Support Group requests that you please confine any comments you have on this Wiki entry to this &amp;quot;Comments or Corrections?&amp;quot; section. THANK YOU!&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;div class="hr"&gt;&lt;/div&gt;
&lt;p&gt;&amp;nbsp; &amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Bentley InRoads, Bentley InRoads v08050000, TechNote&lt;/div&gt;
</description></item><item><title>Automate The Modeling Of Subgrade Layers With InRoads 8.5 [TN]</title><link>https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/2253/2253/revision/8</link><pubDate>Wed, 31 Oct 2012 21:24:08 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:0a93eb5f-9299-4967-a8a0-65e4af4d0208</guid><dc:creator>Jacquelyn Pettus</dc:creator><comments>https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/2253/2253#comments</comments><description>Revision 8 posted to OpenRoads | OpenSite Wiki by Jacquelyn Pettus on 10/31/2012 9:24:08 PM&lt;br /&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href="http://selectservices.bentley.com/en-US"&gt;&lt;img border="0" src="/Other/Old_Site_Files/Bentley_Folders/m/support/17560/download.aspx" width="175" height="56" alt="" /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;h1&gt;Document Information&lt;/h1&gt;
&lt;blockquote&gt;
&lt;p&gt;&lt;strong&gt;Document Type:&lt;/strong&gt; TechNote&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&amp;nbsp; Bentley InRoads 2004 Edition&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&amp;nbsp; 08.05.00.00&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Original Author:&lt;/strong&gt; Bentley Technical Support Group&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Legacy Document Number:&lt;/strong&gt; 8370&lt;/p&gt;
&lt;/blockquote&gt;
&lt;h1&gt;Overview&lt;/h1&gt;
&lt;p&gt;Geotechnical data of existing conditions often dictates that designers adjust the thickness of materials to be applied along a corridor by controlling the sublayer profile grade lines independent of the top layer profile grade line.&lt;/p&gt;
&lt;p&gt;In the past, a basic method was used to model sublayers and create separate templates with differing vertical offsets from the original top layer to the sublayers. This method required the following steps:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;1. Create/copy an existing template and edit the vertical offsets to each sublayer.&lt;/li&gt;
&lt;li&gt;2. Select Modeler &amp;gt; Define Roadway and add additional entries that reflect each of the change points in the subgrade.&lt;/li&gt;
&lt;li&gt;3. After making any desired changes, rerun the Modeler.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;While this method accomplished the task, it could be tedious and did not adequately address rapid change of layer thicknesses.&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;h1&gt;New Approach&lt;/h1&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Today a new approach is recommended to better address control of sublayers. First, though, users should be aware of the following rules:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;A transition control point called Centerline exists for each template layer (sublayer) at the centerline of each layer.&lt;/li&gt;
&lt;li&gt;The Centerline transition control name cannot be changed on the centerline point for any layer.&lt;/li&gt;
&lt;li&gt;There is no apparent method to use an independent vertical alignment and attach it to the Centerline transition control on the sublayers.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;In addition, to effectively vary the subgrade, users must understand the following criteria:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Each sublayer must have a unique layer name.&lt;/li&gt;
&lt;li&gt;The literal layer name, including case sensitivity, can actually be used to define the Centerline point for the layer such that for a sublayer named &amp;quot;base&amp;quot;, a transition control likewise named &amp;quot;base&amp;quot; can be called out for special layer controls.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;Based on these criteria, the following workflow effectively enables users to quickly create and modify sublayers to follow a variable depth layer design:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;1. Assign a unique name to each sublayer.&lt;/li&gt;
&lt;li&gt;2. Select Modeler &amp;gt; Define Typical Sections &amp;gt; Transition Control to create new transition controls named exactly the same as the sublayers created in step 1.&lt;/li&gt;
&lt;li&gt;3. Create new vertical alignments that reflect the depth from the actual profile grade line to the specified sublayers. These vertical alignments names should be the same as the template sublayers, must all be children of the main horizontal alignment that is used during the Roadway Modeler run, and be created as vertical difference type alignments. &lt;br /&gt;This process is exactly the same as creating a normal vertical alignment; however, the elevations defined along the alignment are plus and minus elevations relative to the top layer profile grade line. In other words, to have the exact same elevation as the centerline profile grade line, the elevation of the sublayer vertical alignment must be zero. To have a depth of .75 feet below the profile grade line at the top layer centerline, the elevation of the vertical must be -.75-feet.&lt;/li&gt;
&lt;li&gt;4. Select Modeler &amp;gt; Define Roadway &amp;gt; Main &amp;gt; Edit &amp;gt; Horizontal and Vertical Controls to create entries for each sublayer.&lt;/li&gt;
&lt;li&gt;5. Select each independent Transition Control Name and toggle on the Use Vertical Controls option.&lt;/li&gt;
&lt;li&gt;6. Set Define By to Vertical Difference.&lt;/li&gt;
&lt;li&gt;7. Call out the vertical alignment (which is a child of the main centerline horizontal alignment) that matches the sublayer name. Repeat this process for each of the layers to create entries for each sublayer along the corridor.&lt;/li&gt;
&lt;li&gt;8. Select Modeler &amp;gt; Roadway Modeler and run the newly created roadway definition. Make certain to use the correct horizontal mainline and the vertical alignment that are the profile grade line for the top layer in the modeling run.&lt;/li&gt;
&lt;/ul&gt;
&lt;h1&gt;See Also&lt;/h1&gt;
&lt;p&gt;&lt;a href="/Products/w/Products__Wiki/product-technotes-and-faqs.aspx"&gt;Product TechNotes and FAQs&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href="/Products/Road___Site_Design/w/Road_and_Site_Design__Wiki/inroads-product-technotes-faqs-and-support-video-clips.aspx"&gt;InRoads Product TechNotes FAQs And Support Video Clips&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;h1&gt;External Links&lt;/h1&gt;
&lt;p&gt;&lt;a title="KnowledgeBase" href="http://appsnet.bentley.com/kbase/"&gt;Bentley Technical Support KnowledgeBase&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a title="LEARN Server" href="http://lms.bentley.com"&gt;Bentley LEARN Server&lt;/a&gt;&lt;/p&gt;
&lt;h1&gt;Comments or Corrections?&lt;/h1&gt;
&lt;p&gt;Bentley&amp;#39;s Technical Support Group requests that you please confine any comments you have on this Wiki entry to this &amp;quot;Comments or Corrections?&amp;quot; section. THANK YOU!&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;div class="hr"&gt;&lt;/div&gt;
&lt;p&gt;&amp;nbsp; &amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Bentley InRoads, Bentley InRoads v08050000, TechNote&lt;/div&gt;
</description></item><item><title>Automate The Modeling Of Subgrade Layers With InRoads 8.5 [TN]</title><link>https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/2253/2253/revision/7</link><pubDate>Wed, 21 Jul 2010 19:45:14 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:0a93eb5f-9299-4967-a8a0-65e4af4d0208</guid><dc:creator>Elisa McGraw</dc:creator><comments>https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/2253/2253#comments</comments><description>Revision 7 posted to OpenRoads | OpenSite Wiki by Elisa McGraw on 7/21/2010 7:45:14 PM&lt;br /&gt;
&lt;p&gt;&lt;a target="_blank" href="http://selectservices.bentley.com/en-US/"&gt;&lt;/a&gt;&lt;a target="_blank" href="http://selectservices.bentley.com/en-US/"&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href="http://selectservices.bentley.com/en-US"&gt;&lt;img height="56" width="175" src="/Other/Old_Site_Files/Bentley_Folders/m/support/17560/download.aspx" border="0" alt="" /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;h1&gt;Document Information&lt;/h1&gt;
&lt;blockquote&gt;
&lt;p&gt;&lt;strong&gt;Document Type:&lt;/strong&gt; TechNote&amp;nbsp; &lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&amp;nbsp; Bentley InRoads 2004 Edition &lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&amp;nbsp; 08.05.00.00 &lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Original Author:&lt;/strong&gt; Bentley Technical Support Group &lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Legacy Document Number:&lt;/strong&gt; 8370 &lt;/p&gt;
&lt;/blockquote&gt;
&lt;h1&gt;Overview&lt;/h1&gt;
&lt;p&gt;Geotechnical data of existing conditions often dictates that designers adjust the thickness of materials to be applied along a corridor by controlling the sublayer profile grade lines independent of the top layer profile grade line. &lt;/p&gt;
&lt;p&gt;In the past, a basic method was used to model sublayers and create separate templates with differing vertical offsets from the original top layer to the sublayers. This method required the following steps: &lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;1. Create/copy an existing template and edit the vertical offsets to each sublayer.&lt;/li&gt;
&lt;li&gt;2. Select Modeler &amp;gt; Define Roadway and add additional entries that reflect each of the change points in the subgrade.&lt;/li&gt;
&lt;li&gt;3. After making any desired changes, rerun the Modeler.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;While this method accomplished the task, it could be tedious and did not adequately address rapid change of layer thicknesses. &lt;/p&gt;
&lt;p&gt;&amp;nbsp; &lt;/p&gt;
&lt;h1&gt;New Approach&lt;/h1&gt;
&lt;p&gt;&amp;nbsp; &lt;/p&gt;
&lt;p&gt;Today a new approach is recommended to better address control of sublayers. First, though, users should be aware of the following rules: &lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;A transition control point called Centerline exists for each template layer (sublayer) at the centerline of each layer. &lt;/li&gt;
&lt;li&gt;The Centerline transition control name cannot be changed on the centerline point for any layer. &lt;/li&gt;
&lt;li&gt;There is no apparent method to use an independent vertical alignment and attach it to the Centerline transition control on the sublayers.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;In addition, to effectively vary the subgrade, users must understand the following criteria: &lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Each sublayer must have a unique layer name. &lt;/li&gt;
&lt;li&gt;The literal layer name, including case sensitivity, can actually be used to define the Centerline point for the layer such that for a sublayer named &amp;quot;base&amp;quot;, a transition control likewise named &amp;quot;base&amp;quot; can be called out for special layer controls.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;Based on these criteria, the following workflow effectively enables users to quickly create and modify sublayers to follow a variable depth layer design: &lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;1. Assign a unique name to each sublayer.&lt;/li&gt;
&lt;li&gt;2. Select Modeler &amp;gt; Define Typical Sections &amp;gt; Transition Control to create new transition controls named exactly the same as the sublayers created in step 1.&lt;/li&gt;
&lt;li&gt;3. Create new vertical alignments that reflect the depth from the actual profile grade line to the specified sublayers. These vertical alignments names should be the same as the template sublayers, must all be children of the main horizontal alignment that is used during the Roadway Modeler run, and be created as vertical difference type alignments. &lt;br /&gt;This process is exactly the same as creating a normal vertical alignment; however, the elevations defined along the alignment are plus and minus elevations relative to the top layer profile grade line. In other words, to have the exact same elevation as the centerline profile grade line, the elevation of the sublayer vertical alignment must be zero. To have a depth of .75 feet below the profile grade line at the top layer centerline, the elevation of the vertical must be -.75-feet.&lt;/li&gt;
&lt;li&gt;4. Select Modeler &amp;gt; Define Roadway &amp;gt; Main &amp;gt; Edit &amp;gt; Horizontal and Vertical Controls to create entries for each sublayer. &lt;/li&gt;
&lt;li&gt;5. Select each independent Transition Control Name and toggle on the Use Vertical Controls option. &lt;/li&gt;
&lt;li&gt;6. Set Define By to Vertical Difference. &lt;/li&gt;
&lt;li&gt;7. Call out the vertical alignment (which is a child of the main centerline horizontal alignment) that matches the sublayer name. Repeat this process for each of the layers to create entries for each sublayer along the corridor.&lt;/li&gt;
&lt;li&gt;8. Select Modeler &amp;gt; Roadway Modeler and run the newly created roadway definition. Make certain to use the correct horizontal mainline and the vertical alignment that are the profile grade line for the top layer in the modeling run.&lt;/li&gt;
&lt;/ul&gt;
&lt;h1&gt;See Also&lt;/h1&gt;
&lt;p&gt;&lt;a href="/Products/w/Products__Wiki/product-technotes-and-faqs.aspx"&gt;Product TechNotes and FAQs&lt;/a&gt; &lt;/p&gt;
&lt;p&gt;&lt;a href="/Products/Road___Site_Design/w/Road_and_Site_Design__Wiki/inroads-product-technotes-faqs-and-support-video-clips.aspx"&gt;InRoads Product TechNotes FAQs And Support Video Clips&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&amp;nbsp; &lt;/p&gt;
&lt;h1&gt;External Links&lt;/h1&gt;
&lt;p&gt;&lt;a href="http://appsnet.bentley.com/kbase/" title="KnowledgeBase"&gt;Bentley Technical Support KnowledgeBase&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href="http://lms.bentley.com" title="LEARN Server"&gt;Bentley LEARN Server&lt;/a&gt; &lt;/p&gt;
&lt;h1&gt;Comments or Corrections?&lt;/h1&gt;
&lt;p&gt;Bentley&amp;#39;s Technical Support Group requests that you please confine any comments you have on this Wiki entry to this &amp;quot;Comments or Corrections?&amp;quot; section. THANK YOU! &lt;/p&gt;
&lt;p&gt;&amp;nbsp; &lt;/p&gt;
&lt;div class="hr"&gt;&lt;/div&gt;
&lt;p&gt;&amp;nbsp; &amp;nbsp; &lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Bentley InRoads, Bentley InRoads v08050000, TechNote&lt;/div&gt;
</description></item><item><title>Automate The Modeling Of Subgrade Layers With InRoads 8.5 [TN]</title><link>https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/2253/2253/revision/6</link><pubDate>Tue, 22 Jun 2010 13:07:26 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:0a93eb5f-9299-4967-a8a0-65e4af4d0208</guid><dc:creator>Elisa McGraw</dc:creator><comments>https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/2253/2253#comments</comments><description>Revision 6 posted to OpenRoads | OpenSite Wiki by Elisa McGraw on 6/22/2010 1:07:26 PM&lt;br /&gt;
&lt;p&gt;&lt;a target="_blank" href="http://selectservices.bentley.com/en-US/"&gt;&lt;/a&gt;&lt;a target="_blank" href="http://selectservices.bentley.com/en-US/"&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href="http://selectservices.bentley.com/en-US" title="SELECT Services Online"&gt;&lt;/a&gt;&amp;nbsp;&amp;nbsp;&lt;a href="http://selectservices.bentley.com/en-US"&gt;&lt;img height="80" width="250" src="/Other/Old_Site_Files/Bentley_Folders/m/support/17560/download.aspx" border="0" alt="" /&gt;&lt;/a&gt; &lt;/p&gt;
&lt;h1&gt;Document Information&lt;/h1&gt;
&lt;blockquote&gt;
&lt;p&gt;&lt;strong&gt;Document Type:&lt;/strong&gt; TechNote&amp;nbsp; &lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Product(s):&lt;/strong&gt;&amp;nbsp; Bentley InRoads 2004 Edition &lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Version(s):&lt;/strong&gt;&amp;nbsp; 08.05.00.00 &lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Original Author:&lt;/strong&gt; Bentley Technical Support Group &lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Legacy Document Number:&lt;/strong&gt; 8370 &lt;/p&gt;
&lt;/blockquote&gt;
&lt;h1&gt;Overview&lt;/h1&gt;
&lt;p&gt;Geotechnical data of existing conditions often dictates that designers adjust the thickness of materials to be applied along a corridor by controlling the sublayer profile grade lines independent of the top layer profile grade line. &lt;/p&gt;
&lt;p&gt;In the past, a basic method was used to model sublayers and create separate templates with differing vertical offsets from the original top layer to the sublayers. This method required the following steps: &lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;1. Create/copy an existing template and edit the vertical offsets to each sublayer.&lt;/li&gt;
&lt;li&gt;2. Select Modeler &amp;gt; Define Roadway and add additional entries that reflect each of the change points in the subgrade.&lt;/li&gt;
&lt;li&gt;3. After making any desired changes, rerun the Modeler.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;While this method accomplished the task, it could be tedious and did not adequately address rapid change of layer thicknesses. &lt;/p&gt;
&lt;p&gt;&amp;nbsp; &lt;/p&gt;
&lt;h1&gt;New Approach&lt;/h1&gt;
&lt;p&gt;&amp;nbsp; &lt;/p&gt;
&lt;p&gt;Today a new approach is recommended to better address control of sublayers. First, though, users should be aware of the following rules: &lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;A transition control point called Centerline exists for each template layer (sublayer) at the centerline of each layer. &lt;/li&gt;
&lt;li&gt;The Centerline transition control name cannot be changed on the centerline point for any layer. &lt;/li&gt;
&lt;li&gt;There is no apparent method to use an independent vertical alignment and attach it to the Centerline transition control on the sublayers.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;In addition, to effectively vary the subgrade, users must understand the following criteria: &lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;Each sublayer must have a unique layer name. &lt;/li&gt;
&lt;li&gt;The literal layer name, including case sensitivity, can actually be used to define the Centerline point for the layer such that for a sublayer named &amp;quot;base&amp;quot;, a transition control likewise named &amp;quot;base&amp;quot; can be called out for special layer controls.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;Based on these criteria, the following workflow effectively enables users to quickly create and modify sublayers to follow a variable depth layer design: &lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;1. Assign a unique name to each sublayer.&lt;/li&gt;
&lt;li&gt;2. Select Modeler &amp;gt; Define Typical Sections &amp;gt; Transition Control to create new transition controls named exactly the same as the sublayers created in step 1.&lt;/li&gt;
&lt;li&gt;3. Create new vertical alignments that reflect the depth from the actual profile grade line to the specified sublayers. These vertical alignments names should be the same as the template sublayers, must all be children of the main horizontal alignment that is used during the Roadway Modeler run, and be created as vertical difference type alignments. &lt;br /&gt;This process is exactly the same as creating a normal vertical alignment; however, the elevations defined along the alignment are plus and minus elevations relative to the top layer profile grade line. In other words, to have the exact same elevation as the centerline profile grade line, the elevation of the sublayer vertical alignment must be zero. To have a depth of .75 feet below the profile grade line at the top layer centerline, the elevation of the vertical must be -.75-feet.&lt;/li&gt;
&lt;li&gt;4. Select Modeler &amp;gt; Define Roadway &amp;gt; Main &amp;gt; Edit &amp;gt; Horizontal and Vertical Controls to create entries for each sublayer. &lt;/li&gt;
&lt;li&gt;5. Select each independent Transition Control Name and toggle on the Use Vertical Controls option. &lt;/li&gt;
&lt;li&gt;6. Set Define By to Vertical Difference. &lt;/li&gt;
&lt;li&gt;7. Call out the vertical alignment (which is a child of the main centerline horizontal alignment) that matches the sublayer name. Repeat this process for each of the layers to create entries for each sublayer along the corridor.&lt;/li&gt;
&lt;li&gt;8. Select Modeler &amp;gt; Roadway Modeler and run the newly created roadway definition. Make certain to use the correct horizontal mainline and the vertical alignment that are the profile grade line for the top layer in the modeling run.&lt;/li&gt;
&lt;/ul&gt;
&lt;h1&gt;See Also&lt;/h1&gt;
&lt;p&gt;&lt;a href="/Products/w/Products__Wiki/product-technotes-and-faqs.aspx"&gt;Product TechNotes and FAQs&lt;/a&gt; &lt;/p&gt;
&lt;p&gt;&lt;a href="/Products/Road___Site_Design/w/Road_and_Site_Design__Wiki/inroads-product-technotes-faqs-and-support-video-clips.aspx"&gt;InRoads Product TechNotes FAQs And Support Video Clips&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&amp;nbsp; &lt;/p&gt;
&lt;h1&gt;External Links&lt;/h1&gt;
&lt;p&gt;&lt;a href="http://appsnet.bentley.com/kbase/" title="KnowledgeBase"&gt;Bentley Technical Support KnowledgeBase&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href="http://lms.bentley.com" title="LEARN Server"&gt;Bentley LEARN Server&lt;/a&gt; &lt;/p&gt;
&lt;h1&gt;Comments or Corrections?&lt;/h1&gt;
&lt;p&gt;Bentley&amp;#39;s Technical Support Group requests that you please confine any comments you have on this Wiki entry to this &amp;quot;Comments or Corrections?&amp;quot; section. THANK YOU! &lt;/p&gt;
&lt;p&gt;&amp;nbsp; &lt;/p&gt;
&lt;div class="hr"&gt;&lt;/div&gt;
&lt;p&gt;&amp;nbsp; &amp;nbsp; &lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Bentley InRoads, Bentley InRoads v08050000, TechNote&lt;/div&gt;
</description></item><item><title>Automate The Modeling Of Subgrade Layers With InRoads 8.5</title><link>https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/2253/2253/revision/5</link><pubDate>Tue, 04 Nov 2008 17:22:25 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:0a93eb5f-9299-4967-a8a0-65e4af4d0208</guid><dc:creator>Elisa McGraw</dc:creator><comments>https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/2253/2253#comments</comments><description>Revision 5 posted to OpenRoads | OpenSite Wiki by Elisa McGraw on 11/4/2008 5:22:25 PM&lt;br /&gt;
&lt;a href="http://selectservices.bentley.com/en-US/" target="_blank"&gt;&lt;/a&gt;&lt;a href="http://selectservices.bentley.com/en-US/" target="_blank"&gt;
&lt;/a&gt;
&lt;p&gt;
&lt;a href="http://selectservices.bentley.com/en-US" title="SELECT Services Online"&gt;&lt;/a&gt;&amp;nbsp;&amp;nbsp;&lt;a href="http://selectservices.bentley.com/en-US"&gt;&lt;img src="http://communities.bentley.com/Other/Old_Site_Files/Bentley_Folders/m/support/17560/download.aspx" border="0" width="250" height="80" /&gt;&lt;/a&gt; 
&lt;/p&gt;
&lt;h1&gt;Document Information&lt;/h1&gt;
&lt;blockquote&gt;
	&lt;p&gt;
	&lt;strong&gt;Document Type:&lt;/strong&gt; TechNote&amp;nbsp; 
	&lt;/p&gt;
	&lt;p&gt;
	&lt;strong&gt;Product(s):&lt;/strong&gt;&amp;nbsp; Bentley InRoads 2004 Edition 
	&lt;/p&gt;
	&lt;p&gt;
	&lt;strong&gt;Version(s):&lt;/strong&gt;&amp;nbsp; 08.05.00.00 
	&lt;/p&gt;
	&lt;p&gt;
	&lt;strong&gt;Original Author:&lt;/strong&gt; Bentley Technical Support Group 
	&lt;/p&gt;
	&lt;p&gt;
	&lt;strong&gt;Legacy Document Number:&lt;/strong&gt; 8370
	&lt;/p&gt;
&lt;/blockquote&gt;
&lt;h1&gt;Overview&lt;/h1&gt;
&lt;p&gt;
Geotechnical data of existing conditions often dictates that designers adjust the thickness of materials to be applied along a corridor by controlling the sublayer profile grade lines independent of the top layer profile grade line. 
&lt;/p&gt;
&lt;p&gt;
In the past, a basic method was used to model sublayers and create separate templates with differing vertical offsets from the original top layer to the sublayers. This method required the following steps: 
&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;1. Create/copy an existing template and edit the vertical offsets to each sublayer.&lt;/li&gt;
	&lt;li&gt;2. Select Modeler &amp;gt; Define Roadway and add additional entries that reflect each of the change points in the subgrade.&lt;/li&gt;
	&lt;li&gt;3. After making any desired changes, rerun the Modeler.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;
While this method accomplished the task, it could be tedious and did not adequately address rapid change of layer thicknesses. 
&lt;/p&gt;
&lt;p&gt;
&amp;nbsp;
&lt;/p&gt;
&lt;h1&gt;New Approach&lt;/h1&gt;
&lt;p&gt;
&amp;nbsp;
&lt;/p&gt;
&lt;p&gt;
Today a new approach is recommended to better address control of sublayers. First, though, users should be aware of the following rules: 
&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;A transition control point called Centerline exists for each template layer (sublayer) at the centerline of each layer. &lt;/li&gt;
	&lt;li&gt;The Centerline transition control name cannot be changed on the centerline point for any layer. &lt;/li&gt;
	&lt;li&gt;There is no apparent method to use an independent vertical alignment and attach it to the Centerline transition control on the sublayers.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;
In addition, to effectively vary the subgrade, users must understand the following criteria: 
&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Each sublayer must have a unique layer name. &lt;/li&gt;
	&lt;li&gt;The literal layer name, including case sensitivity, can actually be used to define the Centerline point for the layer such that for a sublayer named &amp;quot;base&amp;quot;, a transition control likewise named &amp;quot;base&amp;quot; can be called out for special layer controls.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;
Based on these criteria, the following workflow effectively enables users to quickly create and modify sublayers to follow a variable depth layer design: 
&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;1. Assign a unique name to each sublayer.&lt;/li&gt;
	&lt;li&gt;2. Select Modeler &amp;gt; Define Typical Sections &amp;gt; Transition Control to create new transition controls named exactly the same as the sublayers created in step 1.&lt;/li&gt;
	&lt;li&gt;3. Create new vertical alignments that reflect the depth from the actual profile grade line to the specified sublayers. These vertical alignments names should be the same as the template sublayers, must all be children of the main horizontal alignment that is used during the Roadway Modeler run, and be created as vertical difference type alignments. &lt;br /&gt;
	This process is exactly the same as creating a normal vertical alignment; however, the elevations defined along the alignment are plus and minus elevations relative to the top layer profile grade line. In other words, to have the exact same elevation as the centerline profile grade line, the elevation of the sublayer vertical alignment must be zero. To have a depth of .75 feet below the profile grade line at the top layer centerline, the elevation of the vertical must be -.75-feet.&lt;/li&gt;
	&lt;li&gt;4. Select Modeler &amp;gt; Define Roadway &amp;gt; Main &amp;gt; Edit &amp;gt; Horizontal and Vertical Controls to create entries for each sublayer. &lt;/li&gt;
	&lt;li&gt;5. Select each independent Transition Control Name and toggle on the Use Vertical Controls option. &lt;/li&gt;
	&lt;li&gt;6. Set Define By to Vertical Difference. &lt;/li&gt;
	&lt;li&gt;7. Call out the vertical alignment (which is a child of the main centerline horizontal alignment) that matches the sublayer name. Repeat this process for each of the layers to create entries for each sublayer along the corridor.&lt;/li&gt;
	&lt;li&gt;8. Select Modeler &amp;gt; Roadway Modeler and run the newly created roadway definition. Make certain to use the correct horizontal mainline and the vertical alignment that are the profile grade line for the top layer in the modeling run.&lt;/li&gt;
&lt;/ul&gt;
&lt;h1&gt;See Also&lt;/h1&gt;
&lt;p&gt;
&lt;a href="/Products/w/Products__Wiki/product-technotes-and-faqs.aspx"&gt;Product TechNotes and FAQs&lt;/a&gt; 
&lt;/p&gt;
&lt;a href="/Products/Road___Site_Design/w/Road_and_Site_Design__Wiki/inroads-product-technotes-faqs-and-support-video-clips.aspx"&gt;InRoads Product TechNotes FAQs And Support Video Clips&lt;/a&gt; 
&lt;p&gt;
&amp;nbsp;
&lt;/p&gt;
&lt;h1&gt;External Links&lt;/h1&gt;&lt;a href="http://appsnet.bentley.com/kbase/" title="KnowledgeBase"&gt;Bentley Technical Support KnowledgeBase&lt;/a&gt; 
&lt;p&gt;
&lt;a href="http://lms.bentley.com" title="LEARN Server"&gt;Bentley LEARN Server&lt;/a&gt; 
&lt;/p&gt;
&lt;h1&gt;Comments or Corrections?&lt;/h1&gt;
&lt;p&gt;
Bentley's Technical Support Group requests that you please confine any comments you have on this Wiki entry to this &amp;quot;Comments or Corrections?&amp;quot; section. THANK YOU! 
&lt;/p&gt;
&lt;p&gt;
&amp;nbsp;
&lt;/p&gt;
&lt;div class="hr"&gt;
&lt;/div&gt;
&lt;p&gt;
&amp;nbsp; &amp;nbsp; 
&lt;/p&gt;
&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: Bentley InRoads, Bentley InRoads v08050000, TechNote&lt;/div&gt;
</description></item><item><title>Automate The Modeling Of Subgrade Layers With InRoads 8.5</title><link>https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/2253/2253/revision/4</link><pubDate>Thu, 30 Oct 2008 14:31:44 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:0a93eb5f-9299-4967-a8a0-65e4af4d0208</guid><dc:creator>Elisa McGraw</dc:creator><comments>https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/2253/2253#comments</comments><description>Revision 4 posted to OpenRoads | OpenSite Wiki by Elisa McGraw on 10/30/2008 2:31:44 PM&lt;br /&gt;
&lt;a href="http://selectservices.bentley.com/en-US/" target="_blank"&gt;&lt;/a&gt;&lt;a href="http://selectservices.bentley.com/en-US/" target="_blank"&gt;
&lt;p&gt;
&lt;a href="http://selectservices.bentley.com/en-US" title="SELECT Services Online"&gt;&lt;/a&gt;&amp;nbsp;&amp;nbsp;&lt;a href="http://selectservices.bentley.com/en-US"&gt;&lt;img src="http://communities.bentley.com/files/storage/363/17560/TSG%20Logo.bmp" border="0" width="250" height="80" /&gt;&lt;/a&gt; 
&lt;/p&gt;
&lt;/a&gt;
&lt;h1&gt;Document Information&lt;/h1&gt;
&lt;blockquote&gt;
	&lt;p&gt;
	&lt;strong&gt;Document Type:&lt;/strong&gt; TechNote&amp;nbsp; 
	&lt;/p&gt;
	&lt;p&gt;
	&lt;strong&gt;Product(s):&lt;/strong&gt;&amp;nbsp; Bentley InRoads 2004 Edition 
	&lt;/p&gt;
	&lt;p&gt;
	&lt;strong&gt;Version(s):&lt;/strong&gt;&amp;nbsp; 08.05.00.00 
	&lt;/p&gt;
	&lt;p&gt;
	&lt;strong&gt;Original Author:&lt;/strong&gt; Bentley Technical Support Group 
	&lt;/p&gt;
&lt;/blockquote&gt;
&lt;h1&gt;Overview&lt;/h1&gt;
&lt;p&gt;
Geotechnical data of existing conditions often dictates that designers adjust the thickness of materials to be applied along a corridor by controlling the sublayer profile grade lines independent of the top layer profile grade line. 
&lt;/p&gt;
&lt;p&gt;
In the past, a basic method was used to model sublayers and create separate templates with differing vertical offsets from the original top layer to the sublayers. This method required the following steps: 
&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;1. Create/copy an existing template and edit the vertical offsets to each sublayer.&lt;/li&gt;
	&lt;li&gt;2. Select Modeler &amp;gt; Define Roadway and add additional entries that reflect each of the change points in the subgrade.&lt;/li&gt;
	&lt;li&gt;3. After making any desired changes, rerun the Modeler.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;
While this method accomplished the task, it could be tedious and did not adequately address rapid change of layer thicknesses. 
&lt;/p&gt;
&lt;p&gt;
&amp;nbsp;
&lt;/p&gt;
&lt;h1&gt;New Approach&lt;/h1&gt;
&lt;p&gt;
&amp;nbsp;
&lt;/p&gt;
&lt;p&gt;
Today a new approach is recommended to better address control of sublayers. First, though, users should be aware of the following rules: 
&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;A transition control point called Centerline exists for each template layer (sublayer) at the centerline of each layer. &lt;/li&gt;
	&lt;li&gt;The Centerline transition control name cannot be changed on the centerline point for any layer. &lt;/li&gt;
	&lt;li&gt;There is no apparent method to use an independent vertical alignment and attach it to the Centerline transition control on the sublayers.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;
In addition, to effectively vary the subgrade, users must understand the following criteria: 
&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Each sublayer must have a unique layer name. &lt;/li&gt;
	&lt;li&gt;The literal layer name, including case sensitivity, can actually be used to define the Centerline point for the layer such that for a sublayer named &amp;quot;base&amp;quot;, a transition control likewise named &amp;quot;base&amp;quot; can be called out for special layer controls.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;
Based on these criteria, the following workflow effectively enables users to quickly create and modify sublayers to follow a variable depth layer design: 
&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;1. Assign a unique name to each sublayer.&lt;/li&gt;
	&lt;li&gt;2. Select Modeler &amp;gt; Define Typical Sections &amp;gt; Transition Control to create new transition controls named exactly the same as the sublayers created in step 1.&lt;/li&gt;
	&lt;li&gt;3. Create new vertical alignments that reflect the depth from the actual profile grade line to the specified sublayers. These vertical alignments names should be the same as the template sublayers, must all be children of the main horizontal alignment that is used during the Roadway Modeler run, and be created as vertical difference type alignments. &lt;br /&gt;
	This process is exactly the same as creating a normal vertical alignment; however, the elevations defined along the alignment are plus and minus elevations relative to the top layer profile grade line. In other words, to have the exact same elevation as the centerline profile grade line, the elevation of the sublayer vertical alignment must be zero. To have a depth of .75 feet below the profile grade line at the top layer centerline, the elevation of the vertical must be -.75-feet.&lt;/li&gt;
	&lt;li&gt;4. Select Modeler &amp;gt; Define Roadway &amp;gt; Main &amp;gt; Edit &amp;gt; Horizontal and Vertical Controls to create entries for each sublayer. &lt;/li&gt;
	&lt;li&gt;5. Select each independent Transition Control Name and toggle on the Use Vertical Controls option. &lt;/li&gt;
	&lt;li&gt;6. Set Define By to Vertical Difference. &lt;/li&gt;
	&lt;li&gt;7. Call out the vertical alignment (which is a child of the main centerline horizontal alignment) that matches the sublayer name. Repeat this process for each of the layers to create entries for each sublayer along the corridor.&lt;/li&gt;
	&lt;li&gt;8. Select Modeler &amp;gt; Roadway Modeler and run the newly created roadway definition. Make certain to use the correct horizontal mainline and the vertical alignment that are the profile grade line for the top layer in the modeling run.&lt;/li&gt;
&lt;/ul&gt;
&lt;h1&gt;See Also&lt;/h1&gt;
&lt;p&gt;
[[Product TechNotes and FAQs]] 
&lt;/p&gt;
[[InRoads Product TechNotes FAQs And Support Video Clips]] 
&lt;p&gt;
&amp;nbsp;
&lt;/p&gt;
&lt;h1&gt;External Links&lt;/h1&gt;&lt;a href="http://appsnet.bentley.com/kbase/" title="KnowledgeBase"&gt;Bentley Technical Support KnowledgeBase&lt;/a&gt; 
&lt;p&gt;
&lt;a href="http://lms.bentley.com" title="LEARN Server"&gt;Bentley LEARN Server&lt;/a&gt; 
&lt;/p&gt;
&lt;h1&gt;Comments or Corrections?&lt;/h1&gt;
&lt;p&gt;
Bentley's Technical Support Group requests that you please confine any comments you have on this Wiki entry to this &amp;quot;Comments or Corrections?&amp;quot; section. THANK YOU! 
&lt;/p&gt;
&lt;p&gt;
&amp;nbsp;
&lt;/p&gt;
&lt;div class="hr"&gt;
&lt;/div&gt;
&lt;p&gt;
&amp;nbsp; &amp;nbsp; 
&lt;/p&gt;
&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: &lt;tags&gt;&lt;/tags&gt;&lt;/div&gt;
</description></item><item><title>Automate The Modeling Of Subgrade Layers With InRoads 8.5</title><link>https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/2253/2253/revision/3</link><pubDate>Tue, 21 Oct 2008 20:25:11 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:0a93eb5f-9299-4967-a8a0-65e4af4d0208</guid><dc:creator>Elisa McGraw</dc:creator><comments>https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/2253/2253#comments</comments><description>Revision 3 posted to OpenRoads | OpenSite Wiki by Elisa McGraw on 10/21/2008 8:25:11 PM&lt;br /&gt;
&lt;p&gt;
&lt;a href="http://selectservices.bentley.com/en-US/" target="_blank"&gt;&lt;img src="/photos/select_server_under_construction-gallery/images/10802/500x159.aspx" border="0" alt="Bentley Technical Support Group" title="Bentley Technical Support Group" width="250" /&gt;&lt;/a&gt; 
&lt;/p&gt;
&lt;h1&gt;Document Information&lt;/h1&gt;
&lt;blockquote&gt;
	&lt;p&gt;
	&lt;strong&gt;Document Type:&lt;/strong&gt; TechNote&amp;nbsp; 
	&lt;/p&gt;
	&lt;p&gt;
	&lt;strong&gt;Product(s):&lt;/strong&gt;&amp;nbsp; Bentley InRoads 2004 Edition
	&lt;/p&gt;
	&lt;p&gt;
	&lt;strong&gt;Version(s):&lt;/strong&gt;&amp;nbsp; 08.05.00.00
	&lt;/p&gt;
	&lt;p&gt;
	&lt;strong&gt;Original Author:&lt;/strong&gt; Bentley Technical Support Group
	&lt;/p&gt;
&lt;/blockquote&gt;
&lt;h1&gt;Overview&lt;/h1&gt;
&lt;p&gt;
Geotechnical data of existing conditions often dictates that designers adjust the thickness of materials to be applied along a corridor by controlling the sublayer profile grade lines independent of the top layer profile grade line. 
&lt;/p&gt;
&lt;p&gt;
In the past, a basic method was used to model sublayers and create separate templates with differing vertical offsets from the original top layer to the sublayers. This method required the following steps:
&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;1. Create/copy an existing template and edit the vertical offsets to each sublayer.&lt;/li&gt;
	&lt;li&gt;2. Select Modeler &amp;gt; Define Roadway and add additional entries that reflect each of the change points in the subgrade.&lt;/li&gt;
	&lt;li&gt;3. After making any desired changes, rerun the Modeler.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;
While this method accomplished the task, it could be tedious and did not adequately address rapid change of layer thicknesses.
&lt;/p&gt;
&lt;p&gt;
&amp;nbsp;
&lt;/p&gt;
&lt;h1&gt;New Approach&lt;/h1&gt;
&lt;p&gt;
&amp;nbsp;
&lt;/p&gt;
&lt;p&gt;
Today a new approach is recommended to better address control of sublayers. First, though, users should be aware of the following rules:
&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;A transition control point called Centerline exists for each template layer (sublayer) at the centerline of each layer. &lt;/li&gt;
	&lt;li&gt;The Centerline transition control name cannot be changed on the centerline point for any layer. &lt;/li&gt;
	&lt;li&gt;There is no apparent method to use an independent vertical alignment and attach it to the Centerline transition control on the sublayers.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;
In addition, to effectively vary the subgrade, users must understand the following criteria: 
&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Each sublayer must have a unique layer name. &lt;/li&gt;
	&lt;li&gt;The literal layer name, including case sensitivity, can actually be used to define the Centerline point for the layer such that for a sublayer named &amp;quot;base&amp;quot;, a transition control likewise named &amp;quot;base&amp;quot; can be called out for special layer controls.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;
Based on these criteria, the following workflow effectively enables users to quickly create and modify sublayers to follow a variable depth layer design:
&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;1. Assign a unique name to each sublayer.&lt;/li&gt;
	&lt;li&gt;2. Select Modeler &amp;gt; Define Typical Sections &amp;gt; Transition Control to create new transition controls named exactly the same as the sublayers created in step 1.&lt;/li&gt;
	&lt;li&gt;3. Create new vertical alignments that reflect the depth from the actual profile grade line to the specified sublayers. These vertical alignments names should be the same as the template sublayers, must all be children of the main horizontal alignment that is used during the Roadway Modeler run, and be created as vertical difference type alignments. &lt;br /&gt;
	This process is exactly the same as creating a normal vertical alignment; however, the elevations defined along the alignment are plus and minus elevations relative to the top layer profile grade line. In other words, to have the exact same elevation as the centerline profile grade line, the elevation of the sublayer vertical alignment must be zero. To have a depth of .75 feet below the profile grade line at the top layer centerline, the elevation of the vertical must be -.75-feet.&lt;/li&gt;
	&lt;li&gt;4. Select Modeler &amp;gt; Define Roadway &amp;gt; Main &amp;gt; Edit &amp;gt; Horizontal and Vertical Controls to create entries for each sublayer. &lt;/li&gt;
	&lt;li&gt;5. Select each independent Transition Control Name and toggle on the Use Vertical Controls option. &lt;/li&gt;
	&lt;li&gt;6. Set Define By to Vertical Difference. &lt;/li&gt;
	&lt;li&gt;7. Call out the vertical alignment (which is a child of the main centerline horizontal alignment) that matches the sublayer name. Repeat this process for each of the layers to create entries for each sublayer along the corridor.&lt;/li&gt;
	&lt;li&gt;8. Select Modeler &amp;gt; Roadway Modeler and run the newly created roadway definition. Make certain to use the correct horizontal mainline and the vertical alignment that are the profile grade line for the top layer in the modeling run.&lt;/li&gt;
&lt;/ul&gt;
&lt;h1&gt;See Also&lt;/h1&gt;
&lt;p&gt;
[[Product TechNotes and FAQs]] 
&lt;/p&gt;
[[InRoads Product TechNotes FAQs And Support Video Clips]] 
&lt;p&gt;
&amp;nbsp;
&lt;/p&gt;
&lt;h1&gt;External Links&lt;/h1&gt;&lt;a href="http://appsnet.bentley.com/kbase/" title="KnowledgeBase"&gt;Bentley Technical Support KnowledgeBase&lt;/a&gt; 
&lt;p&gt;
&lt;a href="http://lms.bentley.com" title="LEARN Server"&gt;Bentley LEARN Server&lt;/a&gt; 
&lt;/p&gt;
&lt;h1&gt;Comments or Corrections?&lt;/h1&gt;
&lt;p&gt;
Bentley's Technical Support Group requests that you please confine any comments you have on this Wiki entry to this &amp;quot;Comments or Corrections?&amp;quot; section. THANK YOU! 
&lt;/p&gt;
&lt;p&gt;
&amp;nbsp;
&lt;/p&gt;
&lt;div class="hr"&gt;
&lt;/div&gt;
&lt;p&gt;
&amp;nbsp; &amp;nbsp; 
&lt;/p&gt;
&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: &lt;tags&gt;&lt;/tags&gt;&lt;/div&gt;
</description></item><item><title>Automate The Modeling Of Subgrade Layers With InRoads 8.5</title><link>https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/2253/2253/revision/2</link><pubDate>Tue, 21 Oct 2008 20:02:06 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:0a93eb5f-9299-4967-a8a0-65e4af4d0208</guid><dc:creator>Elisa McGraw</dc:creator><comments>https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/2253/2253#comments</comments><description>Revision 2 posted to OpenRoads | OpenSite Wiki by Elisa McGraw on 10/21/2008 8:02:06 PM&lt;br /&gt;
&lt;p&gt;
&lt;a href="http://selectservices.bentley.com/en-US/" target="_blank"&gt;&lt;img src="/photos/select_server_under_construction-gallery/images/10802/500x159.aspx" border="0" alt="Bentley Technical Support Group" title="Bentley Technical Support Group" width="250" /&gt;&lt;/a&gt; 
&lt;/p&gt;
&lt;h1&gt;Document Information&lt;/h1&gt;
&lt;blockquote&gt;
	&lt;p&gt;
	&lt;strong&gt;Document Type:&lt;/strong&gt; TechNote&amp;nbsp; 
	&lt;/p&gt;
	&lt;p&gt;
	&lt;strong&gt;Product(s):&lt;/strong&gt;&amp;nbsp; Bentley InRoads 2004 Edition
	&lt;/p&gt;
	&lt;p&gt;
	&lt;strong&gt;Version(s):&lt;/strong&gt;&amp;nbsp; 08.05.00.00
	&lt;/p&gt;
	&lt;p&gt;
	&lt;strong&gt;Original Author:&lt;/strong&gt; Bentley Technical Support Group
	&lt;/p&gt;
&lt;/blockquote&gt;
&lt;h1&gt;Overview&lt;/h1&gt;
&lt;p&gt;
Geotechnical data of existing conditions often dictates that designers adjust the thickness of materials to be applied along a corridor by controlling the sublayer profile grade lines independent of the top layer profile grade line. 
&lt;/p&gt;
&lt;p&gt;
In the past, a basic method was used to model sublayers and create separate templates with differing vertical offsets from the original top layer to the sublayers. This method required the following steps:
&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;1. Create/copy an existing template and edit the vertical offsets to each sublayer.&lt;/li&gt;
	&lt;li&gt;2. Select Modeler &amp;gt; Define Roadway and add additional entries that reflect each of the change points in the subgrade.&lt;/li&gt;
	&lt;li&gt;3. After making any desired changes, rerun the Modeler.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;
While this method accomplished the task, it could be tedious and did not adequately address rapid change of layer thicknesses.
&lt;/p&gt;
&lt;p&gt;
&amp;nbsp;
&lt;/p&gt;
&lt;h1&gt;New Approach&lt;/h1&gt;
&lt;p&gt;
&amp;nbsp;
&lt;/p&gt;
&lt;p&gt;
Today a new approach is recommended to better address control of sublayers. First, though, users should be aware of the following rules:
&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;A transition control point called Centerline exists for each template layer (sublayer) at the centerline of each layer. &lt;/li&gt;
	&lt;li&gt;The Centerline transition control name cannot be changed on the centerline point for any layer. &lt;/li&gt;
	&lt;li&gt;There is no apparent method to use an independent vertical alignment and attach it to the Centerline transition control on the sublayers.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;
In addition, to effectively vary the subgrade, users must understand the following criteria: 
&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Each sublayer must have a unique layer name. &lt;/li&gt;
	&lt;li&gt;The literal layer name, including case sensitivity, can actually be used to define the Centerline point for the layer such that for a sublayer named &amp;quot;base&amp;quot;, a transition control likewise named &amp;quot;base&amp;quot; can be called out for special layer controls.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;
Based on these criteria, the following workflow effectively enables users to quickly create and modify sublayers to follow a variable depth layer design:
&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;1. Assign a unique name to each sublayer.&lt;/li&gt;
	&lt;li&gt;2. Select Modeler &amp;gt; Define Typical Sections &amp;gt; Transition Control to create new transition controls named exactly the same as the sublayers created in step 1.&lt;/li&gt;
	&lt;li&gt;3. Create new vertical alignments that reflect the depth from the actual profile grade line to the specified sublayers. These vertical alignments names should be the same as the template sublayers, must all be children of the main horizontal alignment that is used during the Roadway Modeler run, and be created as vertical difference type alignments. &lt;br /&gt;
	This process is exactly the same as creating a normal vertical alignment; however, the elevations defined along the alignment are plus and minus elevations relative to the top layer profile grade line. In other words, to have the exact same elevation as the centerline profile grade line, the elevation of the sublayer vertical alignment must be zero. To have a depth of .75 feet below the profile grade line at the top layer centerline, the elevation of the vertical must be -.75-feet.&lt;/li&gt;
	&lt;li&gt;4. Select Modeler &amp;gt; Define Roadway &amp;gt; Main &amp;gt; Edit &amp;gt; Horizontal and Vertical Controls to create entries for each sublayer. &lt;/li&gt;
	&lt;li&gt;5. Select each independent Transition Control Name and toggle on the Use Vertical Controls option. &lt;/li&gt;
	&lt;li&gt;6. Set Define By to Vertical Difference. &lt;/li&gt;
	&lt;li&gt;7. Call out the vertical alignment (which is a child of the main centerline horizontal alignment) that matches the sublayer name. Repeat this process for each of the layers to create entries for each sublayer along the corridor.&lt;/li&gt;
	&lt;li&gt;8. Select Modeler &amp;gt; Roadway Modeler and run the newly created roadway definition. Make certain to use the correct horizontal mainline and the vertical alignment that are the profile grade line for the top layer in the modeling run.&lt;/li&gt;
&lt;/ul&gt;
&lt;h1&gt;See Also&lt;/h1&gt;
&lt;p&gt;
[[Product TechNotes and FAQs]] 
&lt;/p&gt;
&lt;p&gt;
[[Geospatial Product TechNotes And FAQs]]  
&lt;/p&gt;
&lt;h1&gt;External Links&lt;/h1&gt;&lt;a href="http://appsnet.bentley.com/kbase/" title="KnowledgeBase"&gt;Bentley Technical Support KnowledgeBase&lt;/a&gt; 
&lt;p&gt;
&lt;a href="http://lms.bentley.com" title="LEARN Server"&gt;Bentley LEARN Server&lt;/a&gt; 
&lt;/p&gt;
&lt;h1&gt;Comments or Corrections?&lt;/h1&gt;
&lt;p&gt;
Bentley's Technical Support Group requests that you please confine any comments you have on this Wiki entry to this &amp;quot;Comments or Corrections?&amp;quot; section. THANK YOU! 
&lt;/p&gt;
&lt;p&gt;
&amp;nbsp;
&lt;/p&gt;
&lt;div class="hr"&gt;
&lt;/div&gt;
&lt;p&gt;
&amp;nbsp; &amp;nbsp; 
&lt;/p&gt;
&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: &lt;tags&gt;&lt;/tags&gt;&lt;/div&gt;
</description></item><item><title>Automate The Modeling Of Subgrade Layers With InRoads 8.5</title><link>https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/2253/2253/revision/1</link><pubDate>Mon, 30 Jun 2008 12:57:11 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:0a93eb5f-9299-4967-a8a0-65e4af4d0208</guid><dc:creator>Hannah Blye</dc:creator><comments>https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/2253/2253#comments</comments><description>Revision 1 posted to OpenRoads | OpenSite Wiki by Hannah Blye on 6/30/2008 12:57:11 PM&lt;br /&gt;
&lt;table border="0" cellspacing="0" cellpadding="2" width="631" id="Table7"&gt;
	&lt;tbody&gt;
		&lt;tr&gt;
			&lt;td width="150" valign="top"&gt;&lt;strong&gt;Product:&lt;/strong&gt;&lt;/td&gt;
			&lt;td&gt;Bentley InRoads 2004 Edition v08.05.00.00&lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr&gt;
			&lt;td width="150" valign="top"&gt;&lt;strong&gt;Date Added:&lt;/strong&gt;&lt;/td&gt;
			&lt;td&gt;June 30, 2008&lt;/td&gt;
		&lt;/tr&gt;
	&lt;/tbody&gt;
&lt;/table&gt;
&amp;nbsp; 
&lt;p&gt;
Geotechnical data of existing conditions often dictates that designers adjust the thickness of materials to be applied along a corridor by controlling the sublayer profile grade lines independent of the top layer profile grade line. 
&lt;/p&gt;
&lt;p&gt;
In the past, a basic method was used to model sublayers and create separate templates with differing vertical offsets from the original top layer to the sublayers. This method required the following steps:
&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;1. Create/copy an existing template and edit the vertical offsets to each sublayer.&lt;/li&gt;
	&lt;li&gt;2. Select Modeler &amp;gt; Define Roadway and add additional entries that reflect each of the change points in the subgrade.&lt;/li&gt;
	&lt;li&gt;3. After making any desired changes, rerun the Modeler.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;
While this method accomplished the task, it could be tedious and did not adequately address rapid change of layer thicknesses.
&lt;/p&gt;
&lt;p&gt;
&lt;strong&gt;New Approach&lt;/strong&gt;
&lt;/p&gt;
&lt;p&gt;
Today a new approach is recommended to better address control of sublayers. First, though, users should be aware of the following rules:
&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;A transition control point called Centerline exists for each template layer (sublayer) at the centerline of each layer. &lt;/li&gt;
	&lt;li&gt;The Centerline transition control name cannot be changed on the centerline point for any layer. &lt;/li&gt;
	&lt;li&gt;There is no apparent method to use an independent vertical alignment and attach it to the Centerline transition control on the sublayers.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;
In addition, to effectively vary the subgrade, users must understand the following criteria: 
&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Each sublayer must have a unique layer name. &lt;/li&gt;
	&lt;li&gt;The literal layer name, including case sensitivity, can actually be used to define the Centerline point for the layer such that for a sublayer named &amp;quot;base&amp;quot;, a transition control likewise named &amp;quot;base&amp;quot; can be called out for special layer controls.&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;
Based on these criteria, the following workflow effectively enables users to quickly create and modify sublayers to follow a variable depth layer design:
&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;1. Assign a unique name to each sublayer.&lt;/li&gt;
	&lt;li&gt;2. Select Modeler &amp;gt; Define Typical Sections &amp;gt; Transition Control to create new transition controls named exactly the same as the sublayers created in step 1.&lt;/li&gt;
	&lt;li&gt;3. Create new vertical alignments that reflect the depth from the actual profile grade line to the specified sublayers. These vertical alignments names should be the same as the template sublayers, must all be children of the main horizontal alignment that is used during the Roadway Modeler run, and be created as vertical difference type alignments. &lt;br /&gt;
	This process is exactly the same as creating a normal vertical alignment; however, the elevations defined along the alignment are plus and minus elevations relative to the top layer profile grade line. In other words, to have the exact same elevation as the centerline profile grade line, the elevation of the sublayer vertical alignment must be zero. To have a depth of .75 feet below the profile grade line at the top layer centerline, the elevation of the vertical must be -.75-feet.&lt;/li&gt;
	&lt;li&gt;4. Select Modeler &amp;gt; Define Roadway &amp;gt; Main &amp;gt; Edit &amp;gt; Horizontal and Vertical Controls to create entries for each sublayer. &lt;/li&gt;
	&lt;li&gt;5. Select each independent Transition Control Name and toggle on the Use Vertical Controls option. &lt;/li&gt;
	&lt;li&gt;6. Set Define By to Vertical Difference. &lt;/li&gt;
	&lt;li&gt;7. Call out the vertical alignment (which is a child of the main centerline horizontal alignment) that matches the sublayer name. Repeat this process for each of the layers to create entries for each sublayer along the corridor.&lt;/li&gt;
	&lt;li&gt;8. Select Modeler &amp;gt; Roadway Modeler and run the newly created roadway definition. Make certain to use the correct horizontal mainline and the vertical alignment that are the profile grade line for the top layer in the modeling run.&lt;/li&gt;
&lt;/ul&gt;
&lt;div style="clear:both;"&gt;&lt;/div&gt;

&lt;div style="font-size: 90%;"&gt;Tags: &lt;tags&gt;&lt;/tags&gt;&lt;/div&gt;
</description></item></channel></rss>