Method and system for detecting jaywalking of vulnerable road users

Abstract

This application relates to a method and a system for automatically detecting jaywalking of vulnerable road users (VRUs). In one aspect, the method includes first determining whether a detected current trajectory of the first VRU substantially matches a first path infrequently taken by the plurality of VRUs. The method also includes second determining whether a predicted trajectory of a selected VRU crosses a second path frequently taken by a plurality of vehicles based on the past trajectory data of the plurality of vehicles. The method further includes third determining whether the predicted trajectory of the selected VRU is substantially distal to a third path marked for VRU use. The method further includes determining whether the selected VRU is jaywalking based on the first determining, the second determining, and the third determining.

What is claimed is: 
     
         1 . A method of automatically detecting jaywalking of a vulnerable road user (VRU), the method comprising:
 storing, at a memory, past trajectory data of a plurality of vehicles and a plurality of VRUs, wherein each of the plurality of VRUs and each of the plurality of vehicles are linked to a long-term evolution (LTE)-capable user equipment (UE) terminal having an international mobile subscriber identity (IMSI);   detecting, at a computing device, a current trajectory of a first one of the plurality of VRUs;   first determining, at the computing device, whether the detected current trajectory of the first VRU substantially matches a first path taken by the plurality of VRUs less frequently than a first threshold value based on the past trajectory data of the plurality of VRUs;   in response to the detected current trajectory of the first VRU substantially matching the first path, tagging, at the computing device, the first VRU as a selected VRU;   obtaining, at the computing device, a predicted trajectory of the selected VRU;   second determining, at the computing device, whether the predicted trajectory of the selected VRU crosses a second path taken by the plurality of vehicles more frequently than a second threshold value based on the past trajectory data of the plurality of vehicles, the second path being different from the first path;   third determining, at the computing device, whether the predicted trajectory of the selected VRU is substantially distal to a third path marked for VRU use; and   fourth determining, at the computing device, whether the selected VRU is jaywalking based on one or more of the first determining, the second determining, and the third determining.   
     
     
         2 . The method of  claim 1 , further comprising transmitting a result of the fourth determining to the UE terminal of the selected VRU and/or the UE terminal of one of the vehicles within a threshold distance of the UE terminal of the selected VRU.