Method for controlling traffic signal lamp during traffic jam

Abstract

The invention discloses a method for controlling a traffic signal lamp during traffic jam. The traffic signal lamp comprises a control module and a flow calculation module, and a first pressure sensor and a second pressure sensor are arranged below the pavement of each carriageway, wherein each first pressure sensor is arranged below a stop line, and the distance between the first pressure sensor and the corresponding second pressure sensor is equal to a preset maximum traffic jam length. The first pressure sensors and the second pressure sensors transmit signals to the flow calculation module when a vehicle passes over; the flow calculation module counts the vehicle flow of each carriageway at the first pressure sensor and the second pressure sensor in a preset flow sampling time, and transmits the vehicle flow to the control module; and the control module automatically adjusts the green light time of each direction according to the received vehicle flow information. By adopting the method of the invention, the traffic condition can be adjusted to the greatest extent during traffic jam, and human resources can be saved.

Description

technical field [0001] The invention relates to a traffic signal lamp, in particular to a method for controlling a traffic signal lamp during congestion. Background technique [0002] The traffic light was invented by African-American Garrett Morgan in 1923. Rail traffic has been using automatically switching light signals for some time. But since the trains run in single trains on a fixed schedule, and it is not easy for the trains to stop, the signal used on the railway has only one command: go. Traffic lights on highways are different. Their job is largely to tell motorists to stop. [0003] Traffic lights are composed of red lights, green lights, and yellow lights. A red light means no access, a green light means permission to pass, and a yellow light means slow or warning. [0004] In recent years, with the rapid economic and social development, the area of ​​many urban areas in my country has gradually expanded, road construction has continued to increase, and trav...

AI Technical Summary

Problems solved by technology

[0011] This method cannot be separated from human control and cannot achieve automatic adjustment. When automatic adjustment strategies can be used, human resources are greatly wasted