TransitPreferences

Preferences for TRANSIT based routes that influence the route that is returned.

JSON representation 
{
  "allowedTravelModes": [
    enum (TransitTravelMode)
  ],
  "routingPreference": enum (TransitRoutingPreference)
}
Fields
allowedTravelModes[]

enum (TransitTravelMode)

A set of travel modes to use when getting a TRANSIT route. Defaults to all supported modes of travel.
routingPreference

enum (TransitRoutingPreference)

A routing preference that, when specified, influences the TRANSIT route returned.

TransitTravelMode

A set of values used to specify the mode of transit.

Enums
TRANSIT_TRAVEL_MODE_UNSPECIFIED No transit travel mode specified.
BUS Travel by bus.
SUBWAY Travel by subway.
TRAIN Travel by train.
LIGHT_RAIL Travel by light rail or tram.
RAIL Travel by rail. This is equivalent to a combination of SUBWAY, TRAIN, and LIGHT_RAIL.

TransitRoutingPreference

Specifies routing preferences for transit routes.

Enums
TRANSIT_ROUTING_PREFERENCE_UNSPECIFIED No preference specified.
LESS_WALKING Indicates that the calculated route should prefer limited amounts of walking.
FEWER_TRANSFERS Indicates that the calculated route should prefer a limited number of transfers.