Complete Street Rule: Bridge occlusion is not detecting streets (the actual road) but only the sidewalks

Question

I am currently using the Complete Street Rule in my project and have encountered an issue that I hope to get some assistance with. The problem lies in the bridge occlusion feature, which seems to not be acting as expected.

Specifically, the bridge occlusion is not detecting streets (the actual roadways) as it should. Instead, it appears to only be recognizing sidewalks. I have tried several troubleshooting methods but have yet to find a solution. I am unsure if this is a bug in the system or if there is something I am missing in my usage of the feature.

I would greatly appreciate any advice or suggestions on how to resolve this issue. Has anyone else experienced this problem? If so, how were you able to rectify it?

Thank you in advance for your help.

ThomasFuchs · Answer

Hello @Bee-am

Please excuse the late response. I now figured out what is happening: The current version of the Complete Streets Rule does not support bridge occlusion.

The overlap/ occlusion queries can cause a rule to generate slowly. The occlusion check on bridge piers was considered an edge case that is not important enough to justify the performance hit. Therefore it was removed in 2018.

If you want to add it back in, edit Complete_Street.cga and replace the "PierCheck" rule with the formerly used code:

PierCheck -->
	case (Bridge_Display == "On, Show All Piers"):
		# Occlusion test is disabled, by "On, Show All piers".
		PierShow
	case (Bridge_Display == "On, Flag Occlusions"):
		case overlaps(inter):
			# This pier hits another model.
			print("Occlusion true: Bridge pier overlaps another model!")
			# Flag the pier in red. This is a debugging mode for the piers.
			color(1,0,0)
			PierShow
		else:
			# No occlusion so show the pier.
			print("Occlusion false.")
			PierShow
	else:
		# Use standard occlusion method. 
		case overlaps(inter):
			# Omit piers due to positive occlusion check.
			# This means the pier would hit a street or other model.
			NIL
		else:
			# No occlusion so show the pier.
			PierShow

Bee-am · Answer

@SimonHaegler - quickly checking if you were able to reproduce the issue after reducing the distance between piers (or widening the street)? We haven't yet found a solution on our end.

cc @ThomasFuchs

Bee-am · Answer

Hi @SimonHaegler - sorry only noticed your reply now.

We are using the Complete_Street.cga file from @DavidWasserman's latest Complete_Street_Rule.