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GTFS Extensions

Metro Transit’s GTFS includes a few extensions to the GTFS standard. These elements are documented below. Please note this is intended to supplement documentation on GTFS itself.

trips.txt

Field Definition
direction

Indicates the cardinal direction of travel for a trip.
NB = northbound
SB = southbound
EB = eastbound
WB = westbound

branch_letter

Indicates the trip’s branch or variant.
Metro Transit’s service includes many branches. Trips with the same route_id serve meaningfully different stops and destinations based on their branch_letter. When referring to a specific trip, the branch_letter should always be included along with the route_id.