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How to link ways to form the bigger road

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I'm using OSM API (overpy and overpass using Python3) to extract toll roads "toll=yes" in a certain search area (e.g. searchArea = California). The API spits out all the tolled ways in CA split into ways. What I'd like to see is each toll road as a whole, i.e. not split into ways.

Is there a way to regroup all the tiny ways back into the bigger road? How are ways linked in OSM?

asked 25 Dec '17, 20:37

omarfaskar's gravatar image

omarfaskar
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accept rate: 0%


2 Answers:

2

The ways are linked via common/shared end nodes. Essentially you need to define which properties/tags should be the same over a "bigger road" (for example the name tag) and create one geometry our of the segments by joining them at the end nodes.

answered 26 Dec '17, 15:59

SimonPoole's gravatar image

SimonPoole ♦
44.7k13326701
accept rate: 18%

edited 26 Dec '17, 16:00

0
  1. First extract all <nd ref=""/> tags
  2. Remove duplicate tags with uniq -u
  3. Reassemble into a way with <way></way>
  4. Done!

answered 29 Dec '17, 04:35

Wetitpig0's gravatar image

Wetitpig0
307161928
accept rate: 10%

edited 29 Dec '17, 04:35

Source code available on GitHub .