US 12,254,766 B2
Calculating traffic flow changes due to traffic events
Kenichi Takasaki, Tokyo (JP); Shoichiro Watanabe, Tokyo (JP); Sanehiro Furuichi, Tokyo (JP); and Yasutaka Nishimura, Yamato (JP)
Assigned to International Business Machines Corporation, Armonk, NY (US)
Filed by International Business Machines Corporation, Armonk, NY (US)
Filed on Mar. 11, 2021, as Appl. No. 17/198,893.
Prior Publication US 2022/0292955 A1, Sep. 15, 2022
Int. Cl. G08G 1/133 (2006.01); G08G 1/01 (2006.01)
CPC G08G 1/0133 (2013.01) 25 Claims
OG exemplary drawing
 
1. A method for calculating traffic flow changes, the method comprising:
detecting a traffic event;
determining an affected area of the traffic event;
determining an investigation area based on the affected area;
selecting at least one vehicle located within the investigation area;
calculating a change in traffic flow due to the traffic event based on a comparison of a predicted traffic flow with a current traffic flow, wherein the current traffic flow is based on information received from the at least one vehicle;
updating the affected area based on the change in traffic flow; and
calculating an updated change in traffic flow based on the updated affected area when the updated affected area is larger than a predetermined threshold area.