Transportation

The Transportation panel turns a loaded GTFS transit feed into graphs: a travel-summary graph for a chosen service window, and an origin-destination graph aggregated from trip legs.

Note

Requires GTFS data. Import a feed first with Import GTFS in the Data Import panel. Until then this panel only shows a reminder.

Travel summary graph

Control	Description
Calendar Start / Calendar End	First and last service day to include. The choices are populated from the dates discovered in the feed; pick All to use the full calendar range.
Travel Summary Graph	Builds the graph (leave the dates empty/All to use all data).

GTFS OD graph

Aggregates individual trip legs into an origin-destination graph.

Control	Description
Directed OD	Preserve trip direction. When disabled, (A, B) and (B, A) merge into a single undirected edge.
Top N Pairs	Maximum number of OD pairs to materialize. 0 means no limit.
Get OD Pairs	Builds the OD graph.

Important

Big feeds can produce millions of OD pairs. Setting Top N Pairs to 0 (no limit) can exhaust memory; a warning appears when it is unset.

Step-by-step tutorial

For a worked example, follow Model public transport.