This attribute indicates the type of transportation used at any point on a route, and is drawn from agency-provided GTFS feeds.
Valid options are:
Bus: Used for short- and long-distance bus routes
Cable car: Used for street-level rail cars where the cable runs beneath the vehicle
Ferry: Used for short- and long-distance boat service
Funicular: Any rail system designed for steep inclines
Gondola: Cable transport (aerial lift, suspended cable car) where cabins, cars, gondolas, or open chairs are suspended by means of one or more cables
Light rail: Any light rail or street level system within a metropolitan area (tram, streetcar)
Monorail: Railway in which the track consists of a single rail or a beam
Rail: Used for intercity or long-distance travel
Subway: Any underground rail system within a metropolitan area
Trolley bus: Electric buses that draw power from overhead wires using poles
Note that this filter applies to the entire trip and will include trips in which any segment uses one of these submodes. This means that bus can be selected as a submode, and a rail-only agency can be selected using the transit agency filter, and there will still be results that should be interpreted as trips that used both a bus AND also the rail-only agency.