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

Builds a transit travel-summary graph over an optional service-date window.

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.