Abstract: A method and system of route guidance for a vehicle alerts traffic restriction considering its towing status. The vehicle's towing status may be obtained either by automatically detecting a towed vehicle or manually setting such status by a user. When it is determined that the vehicle is towing another vehicle, traffic restriction information such as a speed limit and a dimension limit associated with each link in a route is obtained by accessing to a map database including such traffic restriction information. Based on the traffic restriction information, it is possible to provide the best route with a more correctly estimated time of arrival, while avoiding links which have dimension limits not suitable for the towing vehicle.

Abstract: A method and system of route guidance for a vehicle alerts traffic restriction considering its towing status. The vehicle's towing status may be obtained either by automatically detecting a towed vehicle or manually setting such status by a user. When it is determined that the vehicle is towing another vehicle, traffic restriction information such as a speed limit and a dimension limit associated with each link in a route is obtained by accessing to a map database including such traffic restriction information. Based on the traffic restriction information, it is possible to provide the best route with a more correctly estimated time of arrival, while avoiding links which have dimension limits not suitable for the towing vehicle.