Public Transport ... what?
In the OSM Wiki, there is a description of local public transport networks for many cities.
These often contain a tabular list of the various train, subway, tram and bus lines.
Examples: Bus Routes in London, UK, France, RATP, Portland, OR - Transit Routes, Munich, Germany (MVV) (deleted in the meantime though).
It has, however, at least for Munich, shown that the tables are never really up to date.
For the Munich OSM pub meeting that was motivation to take a look at the topic.
PTNA - Public Transport Network Analysis is designed to help solve this problem by automatically creating these tables, performing a target-to-actual analysis.
- "Target" = what the local transport association offers (based on a CSV list, which is maintained by local mappers), li>
- "Actual" = what we've mapped in OSM.
In addition to the pure listing of the lines, an error analysis of the route and route master relations is also carried out.
What is still in its infancy is the documentation, in German first, English is on it's way. I ask for patience.