WEATHER AND ROAD SURFACE TYPE-BASED NAVIGATION DIRECTIONS

To provide navigation directions according to road surface types of road segments, a request for navigation directions from a starting location to a destination location is received. A set of candidate routes for navigating from the starting location to the destination location is identified. Then for each road segment within each candidate route, a road surface type for the road segment is determined. A route is selected from the set of candidate routes based at least in part on the road surface types of the road segments within the route. A set of navigation directions is provided for presentation on a client device for navigating from the starting location to the destination location via the selected route.