I am currently attempting to station the following:
I was at the point of putting in the stations when I was made aware that there were station equalities that needed to be addressed. At the intersection of the green and blue lines there are two stations: P.O.T. STA. 18+81.85 NORTH AVENUE (the blue line traveling west to east) = P.O.T. STA. 50+00.00 ARCH STREET (the green traveling north to south).
As I understand it, to address the station equalities, and to station the blue line to start) I would have to measure the distance from the end of the blue line to the intersection of the green and blue lines, and then subtract that number from the blue line station. The resulting number would be the station at the start of the line.
Still new to alignments and stationing, I put that number in to the stationing dialogue box:
...and hit apply.
Not quite the result I thought it would be.
I have a couple of sources but nothing that explains what I should have done. I have a vague idea that STA 18+81.85 might need to go into the Ahead Station, but I've nothing to confirm that.
Anyway, is there a better definition of "station equalities" than what I'm using, and what *should* I be doing in order to get the stationing correct. I have eight of these, so if I get the first one, one would think the rest should fall into place.
thanks!
The Station Equations box in this dialog creates station equations on a single alignment. It has nothing to do with intersections with, or offsets to another alignment.
It sounds like you are trying to establish the stationing for each alignment based on the station at a known location. This is actually pretty easy to do, though it's not immediately apparent.
First, ignore the Station Equations box. In the upper area click the target button adjacent to the corridor fields. That will allow you to pick a location in the drawing. Snap to the intersection of the two alignments and accept; that will fill the coordinate field with the coordinates at that point. In the Starting Station field key in the proposed station for that location and hit apply. InRoads will calculate the station for the start of the alignment.
Mornin, Ray!
Something else I don't understand about this situation: Why did InRoads Power Survey put a 50' tick between the 17+68.57 and Station 18? Shouldn't Station 18 be over the 50' tick instead? Because at +68.57, there isn't 50' to Station 18, only 31.43'. The tick that has the Station 18 over it should be the 50' tick because the next station is the intersection with Arch Street (green line) at 18+81.85. That's true for the Arch St line, too.
In other words, InRoads Power Survey is treating Station 17+68.57 as 0+00, and, while yes there is 113.28 (113.2751' actually), it's not "0+00" it's a point along this line that's 68.57' away from 0+00.
InRoads will put a tick at your starting and ending stations, even if they are not at even +00 or +50. There may be a setting in the labeling preferences to control that (I don't have SS2 so I'm not sure). You can always straight delete those two if your standards don't call for them. Once they are placed, they are just elements so deleting them won't hurt anything.
MaryB
Power GeoPak 08.11.09.918Power InRoads 08.11.09.918OpenRoads Designer 2021 R2
Thanks, Ms. B! I guess I should stop using "InRoads" since what we have is Power Survey - a small piece of InRoads. As such, there's a lot that isn't in the software! I'll give a look at what settings are available!
Good point! I do believe that what IS there is analogous to InRoads - kind of a subset of the whole toolbox.
Good luck!
The distance between the 50' tick and 18+00 appears to match the distance between 18+00 and the next 50' tick. The distance between the start of the alignment and the first 50' tick appears to be very close to the 50' intervals shown on the alignment.
My guess is that you do not have station lock turned so InRoads is displaying stationing every 50' starting at the beginning of the alignment. If your annotation is set to truncate the stationing to show only the the portion of the station before the "+" symbol, this is the result you would see. Turn station lock on and all should be well.
Two things... One is I should mention that while the software is "InRoads", it's Power Survey. As such, it doesn't have all the things InRoads does, especially when one is doing alignments, ROWs, etc. Second, with that said, where do you find "station lock"? I'm hoping I have that option.
You will find it under Tools>Locks>
I was under the impression that Survey had all of the InRoads horizontal geometry tools.
That, good, sir, is *exactly* what I was looking for!! Since I'd already written the stations, the initial stationing under Geometry > Horizontal Curve Set > Stationing only made things disappear. Writing the stations under Geometry > View Geometry > Stationing, re-wrote the stationing correctly!
Regarding Power Survey, there is a limit to what tools were provided with the package I gather. I have the InRoads ROW Fundamentals instructional material. When following along for how to do a horizontal alignment, at the point where you've generated a report and the word "transpose ?" appear, you are supposed to right click over the active alignment (In InRoads Explorer), select Horizontal Element, and then Check Integrity. I don't have Horizontal (or Vertical) Element, and Check Integrity is greyed out. I don't have the alignments defined by PIs and curves under Geometry > Horizontal Curve Set.
As has been said elsewhere, it appears that surveyors only do points processing for topography and not so much geometric editing, like alignments and ROWs. As a wise man once said; That's just the way it is.
I'm glad that sent you in the right direction.
I found how to open Survey only and I'm amazed how limited it is! In this state property, ROW and anything requiring permanent monumentation are what distinguish a surveyor. I've used InRoads SS2 for a long time and I think it's a great package. If, as a surveyor, I were limited to what's in the survey package I would go absolutely nuts!
You help has been invaluable!
Up until now I have only done processing points files. This is new, and, like you I find it limiting. But, others have managed even in this limited capacity. I think the missing tools are a part of OpenRoads Designer, so I'll have what I need as I movie forward with this.
For now...