# Car routing

Car routing mode allows calculation of car-specific routes, using real-time and historical traffic information. For example, a car route will follow highways that only cars can enter, avoid areas that are not compatible (like pedestrian zones), as well as respect road restrictions like one-way streets and time-dependent access like seasonal closures.

It is enabled by setting transportMode=car. This mode uses the road network defined by segments with CAR_OPEN flag. It supports most of the routing features such as:

• HOV Support: routing supports both both private and HOV (High Occupancy Vehicle) / Carpool car modes
• Support for specifying max speed that the vehicle cannot exceed while traveling
• Fast and short routing modes
• Traffic aware and optimized
• Time-awareness: apply restrictions only for the time they apply
• Avoid options, as well as avoid areas and segments
• Alternative routes