Multistage variable speed limit control method based on reduction of traffic capacity of expressway

• Main Authors: YANG GUANG, GUO YONGLE, WANG CHUN, LIU HUIWEN, ZHANG WEIHUA, WANG TENGFEI, TIAN MINGZONG, HUANG LUYING
• Format: Patent
• Language: Chinese; English
• Published: 23.09.2022
• Subjects: PHYSICS; SIGNALLING; TRAFFIC CONTROL SYSTEMS

The invention discloses a multi-stage variable speed limit control method based on expressway traffic capacity decline. The method comprises the steps that 1, vehicle data are obtained through a vehicle-mounted intelligent terminal; 2, transmitting the obtained data to a control center; 3, dynamically determining the stage number and the variable speed limit value through an algorithm; 4, the control center wirelessly transmits the information to the roadside variable information signboard and the vehicle-mounted intelligent terminal; 5, the vehicle receives the variable speed limit information and runs according to the speed limit information; and 6, the steps are cycled, and the speed limit information of the next period is determined. According to the invention, the speed and flow data of the vehicle are acquired through the vehicle-mounted intelligent terminal, and then the speed of the vehicle is controlled in real time through the stage number and the variable speed limit value dynamically determined by