City2Graph · Model public transport
Turn a GTFS feed into a travel-summary graph of stop-to-stop service and an origin-destination graph between stops. Mirrors the Transportation panel.
The panel stays inactive until a feed is loaded, so run Import GTFS in Import urban data first. A São Paulo feed ships under examples/GTFS/.
1. Filter the service period
Calendar Start and Calendar End restrict the analysis to a date range. Leave both on All for the whole feed.

2. Travel summary graph
Aggregates services into a stop-to-stop graph weighted by travel time and frequency.

3. Origin-destination pairs
Top N caps the number of pairs, with 0 meaning no limit. Directed decides whether the OD graph keeps direction.

Next steps
Map an OD matrix: external flow data.