US 11,725,955 B2
Method and system for dynamically navigating routes according to safety-related risk profiles
Kathleen B. Berman, McLean, VA (US); and Brian T. Simmons, McLean, VA (US)
Assigned to MITRE Corporation, McLean, VA (US)
Filed by MITRE Corporation, McLean, VA (US)
Filed on Mar. 1, 2021, as Appl. No. 17/188,964.
Prior Publication US 2022/0276063 A1, Sep. 1, 2022
Int. Cl. G01C 21/34 (2006.01); G01C 21/36 (2006.01)
CPC G01C 21/3484 (2013.01) [G01C 21/3407 (2013.01); G01C 21/3661 (2013.01); G01C 21/3691 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, to be performed on a server, for personalized vehicular navigation assessed dynamically based on risk tolerance, comprising:
receiving a navigation request from a user, wherein the request includes destination data and a detected origin location associated with the user;
identifying a plurality of routes from the origin to the destination, wherein a route is comprised of a plurality of road segments;
retrieving data indicative of a real-time condition associated with at least one of the road segments;
retrieving data indicative of accident history associated with the at least one of the road segments;
retrieving a user profile associated with the user, wherein the user profile includes at least one of a user-configurable tolerance level and driver's history that factors experience and past traffic incidents,
calculating risk scores, based on the accident history and the real-time condition and weighed based on the at least one tolerance level and driver's history, associated with a plurality of proposed routes, wherein the calculation includes combining, using a statistical inference method, the accident history and a statistical regression model based on features of a road segment to compute a likelihood of having an accident on the road segment; and
generating a plurality of personalized route suggestions based on the risk scores;
transmitting data to a graphical user interface of a client device to simultaneously display a plurality of the generated personalized route suggestions on the screen of the client device, wherein each route is superimposed on a same road map, and the display includes an indication of a safety score, a distance, and an anticipated travel time for each displayed route; and
in response to receiving a selection from the user of a personalized route, generating data for the graphical user interface of the client device, including: (i) a display of the selected route including a visual alert superimposed along one or more segments of the selected route determined to be potentially dangerous for the user according to the user's profile, and (ii) an audible warning to be provided once the driver is at a location along a roadway that is a basis for negatively impacting the risk score for the route.