Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

While working for my summer internship I have got a task to implement an algorithm to find the crosssecting points of two roads or more and then place that cross-section point a number and then find the distance of the previous roads to the new point and update it in the table.

I tried Ramer Douglas Peucker Line Simplification Algorithm to convert the road into a straight line and then find the intersection point but the point coming after this is not exactly the cross section point and the distance coming is also not the exact.

Please help.

share|improve this question

ArcGIS has the tool "Collapse Dual Lines To Centerline". A free solution, Jump Pilot, has the JUMP Skeletonizer Plugin that can be downloaded at SourceForge.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

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