US 12,260,757 B2
Bidirectional interactive traffic-control management system
Chi-Hong Ho, Taipei (TW); Jun-Shian Lee, Taipei (TW); Hsin-Chia Lin, Taipei (TW); Chih-Che Su, Taipei (TW); Yi-Dar Lin, Taipei (TW); and I-Ying Chen, Taipei (TW)
Assigned to THI CONSULTANTS INC., Taipei (TW)
Filed by THI Consultants Inc., Taipei (TW)
Filed on Oct. 5, 2021, as Appl. No. 17/494,210.
Claims priority of application No. 109134424 (TW), filed on Oct. 5, 2020.
Prior Publication US 2022/0108611 A1, Apr. 7, 2022
Int. Cl. G08G 1/00 (2006.01); G08G 1/01 (2006.01); G08G 1/081 (2006.01); G08G 1/0967 (2006.01); G08G 1/0968 (2006.01)
CPC G08G 1/096822 (2013.01) [G08G 1/0141 (2013.01); G08G 1/081 (2013.01); G08G 1/096783 (2013.01); G08G 1/096844 (2013.01); G08G 1/096855 (2013.01); G08G 1/096883 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A bidirectional interactive traffic-control management system, comprising:
a server, including:
a road and traffic network information subsystem, including a digital urban traffic-control road network and a road-users' travel information input module;
an urban traffic control subsystem, being coupled with the road and traffic network information subsystem; and
a road-users' route guidance subsystem, being coupled with the road and traffic network information subsystem and urban traffic control subsystem;
wherein the server is configured to executed following steps:
the digital urban traffic-control road network stores a vector-type road structure including a plurality of road sections and a plurality of intersections including various road geometric characteristics and traffic control attributes that are pre-stored;
the road-users' travel information input module receives the road-users' travel information from a mobile device through a network to collect real-time travel information of road-users on the plurality of road sections;
the collected road-users' travel information is overlaid with the road geometric characteristics and traffic control attributes that are pre-stored to form real-time integrated traffic information in the plurality of road sections and plurality of intersections of the digital urban traffic-control road network;
an urban traffic control subsystem generates a real-time optimal signal timing plan of each intersection according to the real-time integrated traffic information of all road sections which are linked together by intersections; and
a road-users' route guidance subsystem generates a real-time optimal route plan of each road user who has provided travel information for navigating them to the optimal subsequent travel route by calculating the real-time travel information of all road-users, the real-time integrated traffic information of each road section, and the real-time optimal signal timing plan of each intersection; wherein the required travel information is information of the instant location of each road-user on each road section, and the trip destination point of each road-user; wherein the urban traffic control subsystem further includes a timing plans generation module for generating multiple feasible signal timing plans for each intersection of the digital urban traffic-control road network according to the time-space arrival-flows matrix or pattern of each intersection and signal timing restrictions of each intersection; wherein the urban traffic control subsystem further includes a timing plans optimization module for generating the real-time optimal signal timing plan, including all timing parameters of cycle length, green time split and offset, among the multiple feasible signal timing plans of each intersection of the digital urban traffic-control road network by optimizing an objective function of the multiple feasible signal timing plans according to a set of pre-determined traffic control objective; wherein the real-time optimal signal timing plan is updated according to the combinations of trip destination point and one of beginning location and subsequent instant location of each road-user.