Title:
TIME PERIOD DIVISION METHOD FOR TRAFFIC SIGNAL CONTROL SCHEME TAKING INTERSECTION FLOW IMBALANCE SITUATION INTO CONSIDERATION
Document Type and Number:
WIPO Patent Application WO/2021/217790
Kind Code:
A1
Abstract:
A time period division method for a traffic signal control scheme taking an intersection flow imbalance situation into consideration. The method comprises: acquiring intersection channelization information, traffic flow data and traffic signal control scheme basic information (S1); drawing a traffic flow all-day difference variation trend chart (S2); analyzing and integrating the traffic flow data, and preliminarily dividing a time period by using a Fisher optimal segmentation method (S3); increasing an overlapping phase on the basis of a fluctuation situation of a traffic flow difference obtained after normalization processing, determining a signal scheme phase sequence within a control time period, and superposing the signal scheme phase sequence onto a divided scheme time period so as to obtain an optimized and adjusted signal control time period (S4); and solving a traffic signal scheme within each time period, and optimizing the control time period and the signal scheme again on the basis of a traffic capacity so as to obtain a final time period division and signal scheme (S5). According to the method, the problem of traffic flow imbalance is taken into consideration while dividing a time period, and phase sequence configuration is performed by means of an overlapping phase, such that the simultaneous intelligent optimization configuration of the time period, a phase sequence and a traffic signal phase is realized, and the traffic management control efficiency is effectively improved.
More Like This:
Inventors:
CHEN NING (CN)
LV WEITAO (CN)
MA DANGSHENG (CN)
LI LU (CN)
QIAN RUI (CN)
PAN YANGYANG (CN)
LV WEITAO (CN)
MA DANGSHENG (CN)
LI LU (CN)
QIAN RUI (CN)
PAN YANGYANG (CN)
Application Number:
PCT/CN2020/095092
Publication Date:
November 04, 2021
Filing Date:
June 09, 2020
Export Citation:
Assignee:
JIANGSU ZHITONG TRANSP TECHNOLOGY CO LTD (CN)
International Classes:
G08G1/01; G08G1/081; G08G1/082
Foreign References:
| CN105608510A | 2016-05-25 | |||
| CN109559513A | 2019-04-02 | |||
| CN105160894A | 2015-12-16 | |||
| CN105206070A | 2015-12-30 | |||
| CN108765988A | 2018-11-06 | |||
| KR20110082870A | 2011-07-20 |
Attorney, Agent or Firm:
NANJING IPZHI INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
Download PDF: