Route safety score

Abstract

A system for scoring route safety includes and input interface and a processor. The input interface is to receive data associated with a route segment. The data includes a speed data. The processor is to determine a segment safety score using a speed distribution. The speed distribution is based at least in part on the speed data.

What is claimed is: 
     
         1 . A system, comprising:
 an input interface configured to receive sensor-collected speed data of a vehicle in a group of vehicles, wherein the speed data is associated with a plurality of route segments; and   a processor configured to:
 determine a speed distribution of vehicles in the group of vehicles based at least in part on the received speed data; 
 determine a lane change frequency of the vehicle based at least in part on the received speed data; 
 determine a route segment safety score for each of the plurality of route segments based at least in part on the speed distribution and the lane change frequency vehicle; 
 determine a recommended route based at least in part on the determined route segment safety scores; and 
 output the recommended route. 
   
     
     
         2 . The system of  claim 1 , wherein the speed distribution includes (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. 
     
     
         3 . The system of  claim 2 , wherein the speed distribution comprises a distribution of speeds of vehicles within the route segment at a single point in time. 
     
     
         4 . The system of  claim 2 , wherein the speed distribution comprises a distribution of typical vehicle speed within the route segment at different points in time. 
     
     
         5 . The system of  claim 1 , wherein the input interface is further configured to receive at least one of: event data, maneuver data, video data, lane change frequency data, climate data, topology data, road data, and number of lanes data. 
     
     
         6 . The system of  claim 1 , wherein the processor is further configured to determine the plurality of route segments that together form an associated route. 
     
     
         7 . The system of  claim 6 , wherein the processor is further configured to determine a route safety score based at least in part on route segment safety scores for each route segment forming the route. 
     
     
         8 . The system of  claim 7 , wherein the processor is further configured to:
 determine another route safety score for a different route; and   compare the other route safety score with the route safety score.   
     
     
         9 . The system of  claim 8 , wherein determining the recommended route is based at least in part on the comparison of the other route safety score with the route safety score. 
     
     
         10 . The system of  claim 1 , wherein the input interface is further configured to receive a route, and the processor is further configured to determine the plurality of route segments based at least in part on the received route. 
     
     
         11 . A method for scoring route safety, comprising:
 receiving sensor-collected speed data of a vehicle in a group of vehicles, wherein the speed data is associated with a plurality of route segments;   determining a speed distribution of vehicles in the group of vehicles based at least in part on the received speed data;   determining a lane change frequency of the vehicle based at least in part on the received speed data;   determining a route segment safety score for each of the plurality of route segments based at least in part on the speed distribution and the lane change frequency vehicle;   determining a recommended route based at least in part on the determined route segment safety scores; and   outputting the recommended route.   
     
     
         12 . The method of  claim 11 , wherein the speed distribution includes (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. 
     
     
         13 . The method of  claim 11 , further comprising determining the plurality of route segments that together form an associated route. 
     
     
         14 . The method of  claim 13 , wherein further comprising determining a route safety score based at least in part on route segment safety scores for each route segment forming the route. 
     
     
         15 . The method of  claim 14 , further comprising:
 determining another route safety score for a different route; and   comparing the other route safety score with the route safety score.   
     
     
         16 . The method of  claim 15 , wherein determining the recommended route is based at least in part on the comparison of the other route safety score with the route safety score. 
     
     
         17 . A computer program product for scoring route safety, the computer program product being embodied in a non-transitory computer readable storage medium and comprising computer instructions for:
 receiving sensor-collected speed data of a vehicle in a group of vehicles, wherein the speed data is associated with a plurality of route segments;   determining a speed distribution of vehicles in the group of vehicles based at least in part on the received speed data;   determining a lane change frequency of the vehicle based at least in part on the received speed data;   determining a route segment safety score for each of the plurality of route segments based at least in part on the speed distribution and the lane change frequency vehicle;   determining a recommended route based at least in part on the determined route segment safety scores; and   outputting the recommended route.   
     
     
         18 . The computer program product of  claim 17 , wherein the speed distribution includes (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. 
     
     
         19 . The computer program product of  claim 17 , wherein the computer instructions further include determining the plurality of route segments that together form an associated route. 
     
     
         20 . The computer program product of  claim 19 , wherein the computer instructions further include determining a route safety score based at least in part on route segment safety scores for each route segment forming the route.