1

I have I highway that runs on a bridge over a couple of blocks in a city. How do I get pgRouting to understand that cars can't move from the small blocks on the ground up to the highway on the bridge and vise verse?

What if I manually remove the nodes/vertices? Would a driving_distance understand that the highway and the smaller block-roads underneath aren't connected?

I'm using QGIS+pgRouting+Postgresql+PostGIS

Improve this question

1 Answer 1

Reset to default
1

What if I manually remove the nodes/vertices? Would a driving_distance understand that the highway and the smaller block-roads underneath aren't connected?

Yes, it would. Driving distance (http://docs.pgrouting.org/2.0/en/src/driving_distance/doc/dd_driving_distance.html#pgr-driving-distance) only cares about the logical graph of connected nodes/vertices. If those are correct, overpasses and underpasses won't be an issue at all.

Improve this answer

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.