We are currently having a problem with Driveways and template transitions , mainly in the areas of driveway flares. To give some background, I have tried building this with a civil cell, but I cannot use the temporary measurement tool on this cell in the cross section viewer. When doing profile adjustments, it would be nice to see the slope of the entrance right away in the same place as checking the rest of the cross section elements. So if I could keep the driveway end conditions in the template that would allow for everything to be in the same area when checking slopes.
The template I am using is to below. I have tried it in 3 different ways with none of which resulting in being able to create a correct transition between template drops. I have a template drop that ends at the top of the driveway flare and a template drop that begins at the bottom of the flare. My hope was to create a transition in between so I could connect the elements myself and draw in a transition that would be sufficient for cross section work. The template drops and transition are shown below.
The three different ways I created the template without success were as follows:
1. Using target aliasing and end conditions. In this template build I set the curb surface for the driveway to be an end condition that would draw if the back of entrance line was found. It would then draw the curb and entrance pavement. For the normal curb, I had the end condition find the back of curb line but set this as a priority of 2. The transition between the sections is shown below.
2. Using feature definitions, an end condition, and display rules. In this template build I used an end condition at the left EOP to search out and look for the back of entrance. I then used this as my display rule to trigger which curb was being drawn. The curb would then be the parent to everything drawn from them which was done using horizontal feature constraints for both the entrance and the sidewalk. The tie-in for behind the sidewalk was an end condition. Once the templates were synchronized and a new transition placed, the edit screen looked like the following. As you can see, the transition tool did not allow me to connect the templates that were actually placed in the corridor. It allowed me to connect the condition that was turned on in the actual template library.
3. Using feature definitions, an end condition, and display rules. In this template build I used an end condition at the left EOP to search out and look for the back of entrance. I then used this as the parent to the depressed driveway curb. I then used the driveway curb as my display rule to trigger if the full height curb would be drawn. The curbs would then be the parent to everything drawn from them which was done using horizontal feature constraints for both the entrance and the sidewalk. The tie-in for behind the sidewalk was an end condition. Once the templates were synchronized and a new transition placed, the edit screen looked like the following.
TIA
Sean
Geopak SS3 ver. 08.11.09.722
MS V8i SS3 ver. 08.11.09.608
Do you already have the driveway edge and flares created as elements in the design file?
What I have seen users do (and we have a video describing this in the SS2 version), is they take the end condition and target the driveway element horizontally using the end condition target as Linear Horizontal or Feature Definition Horizontal. This way it controls the width of the end condition component but the slope remains at a constant.
If you have created the driveway and flares as a 3D graphic, you can target using 'Linear Both' or 'Feature Definition Both' which will target the object/graphic horizontally and vertically. So you are creating the target element before the mainline template is run so teh end condition will seek and follow the driveway and flare elements. You may also find it beneficial to shorten the template drop interval in these sections if you want it to follow the flares better as you transition from one section to another.
For more information about the Road and Site design tools, visit the Road and Site design WIKI at: http://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki
Here is a link to the OnDemand Lectures regarding the driveway conditions. Once on this page, scroll to the bottom and the Lecture is called "Urban Street Design Made Easy". The video was recorded for PowerCivil for North America, so we did all the design in one template and used an express modeler, but the same concepts can be used in the SS3 OpenRoads Corridor Modeling to target existing curbs and driveways.
www.bentley.com/.../InRoads
Answer Verified By: Sean Keene
Thanks Chris. This video did help. We did end up with a solution by adding a linear template on the edges of the driveway to tie it all together.