Are there any destructive implications for running an alignment in the Roadway Designer that has non-collinear or non-coincident elements ? What is the inherent harm with having elements that don't check out OK in the Check Integrity tool? Is it just a best practice to have these elements perfectly coincident or collinear, or does it impact the design? Just curious...
BTW, I worked with a user who received those errors in some of his alignments, even though the start/end coordinates and bearings were the same. I cranked up the NE and Angular precisions to 7 places and found slight deviations. But I don't think that these minor tolerance problems would cause problems later in the process - could they?
Greetings-
Avoiding those errors is something I avoid all I can. When I have have encountered that error, I've never had to go out to seven decimal places to see what is going on... usually it's only two or three. Typically, that error means an element that is out of order, transposed, or has a cusp (one example being a curve with a different start bearing than the tangent that immediately proceeds it). Regardless of the error, everything hangs on the geometry, so it's just good practice to get it as correct as possible. I would not think an error 7 decimals out would affect the design, but don't risk leaving those errors in place; use the Horizontal Element Tools to modify the geometry and fix the elements. It covers you and your company, ensures the design is that much better, and your surveyor will thank you, too.
HTH,
Jeff