I am working in Power InRoads on a pretty good sized urban project. It involves curbs, sidewalks, intersecting cross streets. The originators of the models used a different feature where the edge of road runs through an intersection from the one used where the curb, sidewalk and grading occurs. I tried using corridor points where the intersections tie in, but the number of templates and length of the project results in far too many progress bars as the corridor is rebuilt.
So we run the main corridor as a single corridor DTM and then use the intersection edge of road feature as a Feature Point control for the cross streets. So here is the issue:
When one tried to run a curb return corridor where the crown point of the template gets pulled to the cross road centerline profile and the edge of road feature, the point control will fail at seemingly random points along the the road edge feature. The result is a sort of sawtooth look as some points pull to the feature and then one or two will default to the offset in the templates. I played with some of the "Include Critical Sections" toggles on the Roadway Designer Options and found that if I toggle off the External Control Points. the corridor models correctly.
Unfortunately, if this is toggled off, I find it necessary to add a number of Key Stations manually to get an accurate model.
I used the Edit Feature Point tool to confirm that the feature had no discontinuities that might result in this occurrence.
I also noticed that if I have overlapping station ranges in a point control, I cannot get priorities to function as I hoped or wished they would. For example, We are using an edge of road alignment and a back of sidewalk alignment to pull on template points to have one template address extended sections of the road. However, some of the road edges have curb offsets for parking lanes which include an "S" curve and the curves are so sharp that they skew the back edge of sidewalk and also result in doubling back on themselves features if I use these alignments as secondary alignments. So I tried making a Priority 1 point control that did not have use as secondary alignment checked for the entire corridor and then adding short segments with Priority 2 point controls in the areas where it was "safe" to bend the template. Unfortunately, this did not work.
I also discovered if a secondary alignment had segments running in varying directions, sometimes the template bend was more like a mirror. This seems to occur more often when a template is bent more than once.
Have others seen similar issues or are these known limitations.