This enumerated type describes various navigational options that your app can use to receive route data from the Maps app. The values are flags, meaning they can be combined with | operator.
| None | No Maps routing information is necessary. | 
| Airplane | Provide routing information for airplane travel. | 
| Bike | Provide routing information for bicycle travel. | 
| Bus | Provide routing information for bus travel. | 
| Car | Provide routing information for car travel. | 
| Ferry | Provide routing information for ferry travel. | 
| Pedestrian | Provide routing information for pedestrian travel. | 
| RideSharing | Provide routing information for ride sharing travel. | 
| StreetCar | Provide routing information for street car travel. | 
| Subway | Provide routing information for subway travel. | 
| Taxi | Provide routing information for taxi travel. | 
| Train | Provide routing information for train travel. | 
| Other | Provide routing information for other types of travel. |