Route safety score

A method, comprising:

• receiving, by a processor, a destination point input by a user at a remote vehicle;
• determining a set of segments associated with a route terminating at the destination point;
• determining a plurality of route segment safety scores associated with the set of segments based at least in part on a speed distribution of a group of vehicles and a frequency by which at least one vehicle in the group of vehicles changes lanes including by:
• identifying, by the processor, the group of vehicles within a threshold distance of each other based on at least one of vehicle speed data and vehicle position data collected by sensors in a plurality of vehicles;
• and
• determining, by the processor, the speed distribution of the group of vehicles based on data collected by sensors in vehicles of the group, wherein the speed distribution includes a distribution of (i) speeds of vehicles in a first sub-group of vehicles travelling through a first location in a route segment and (ii) speeds of vehicles in a second sub-group of vehicles travelling through a second location in the route segment, the second location being different from the first location;
• determining a plurality of routes ending at the destination point;
• determining a route safety score for each of the plurality of routes ending at the destination point including by summing route segment safety scores for the segments making up each route;
• determining a recommended route from among the plurality of routes ending at the destination point based at least in part on a ranking of the route safety scores of the plurality of routes ending at the destination point;
• and
• outputting the recommended route to the remote vehicle.

A computer program product embodied in a non-transitory computer readable storage medium and comprising computer instructions for:

• receiving a destination point input by a user at a remote vehicle;
• determining a set of segments associated with a route terminating at the destination point;
• determining a plurality of route segment safety scores associated with the set of segments based at least in part on a speed distribution of a group of vehicles and a frequency by which at least one vehicle in the group of vehicles changes lanes including by:
• identifying the group of vehicles within a threshold distance of each other based on at least one of vehicle speed data and vehicle position data collected by sensors in a plurality of vehicles;
• and
• determining the speed distribution of the group of vehicles based on data collected by sensors in vehicles of the group, wherein the speed distribution includes a distribution of (i) speeds of vehicles in a first sub-group of vehicles travelling through a first location in a route segment and (ii) speeds of vehicles in a second sub-group of vehicles travelling through a second location in the route segment, the second location being different from the first location;
• determine a plurality of routes ending at the destination point;
• determine a route safety score for each of the plurality of routes ending at the destination point including by summing route segment safety scores for the segments making up each route;
• determining a recommended route from among the plurality of routes ending at the destination point based at least in part on a ranking of the route safety scores of the plurality of routes ending at the destination point;
• and
• outputting the recommended route to the remote vehicle.