Highway and city expressway connection part traffic coordination control system

Abstract

The invention relates to a highway and city expressway connection part traffic coordination control system which comprises a traffic flow detector, a traffic signal control machine, a traffic information display screen, and a traffic coordination control machine which are arranged at a highway and city expressway connection part. The traffic signal control machine carries out alternative controlling on the traffic lights of each entrance according to traffic flow detection data and a traffic coordination control machine instruction, the distributed control of the traffic flow in time is realized. The traffic information display screen carries out corresponding prompt displaying according to the traffic coordination control machine instruction, and the traffic diversion control of the traffic flow in space is realized. The traffic coordination control machine receives a highway monitoring center instruction through a wireless network, dynamically optimizes and gives a traffic signal control instruction and a traffic information display instruction and issues the instructions to the traffic signal control machine and the traffic information display screen through a wired network to carry out traffic coordination control.

Description

technical field [0001] The patent of the present invention relates to a system applied in the coordinated control of road traffic signals and traffic guidance, specifically a traffic coordinated control system at the junction of expressways and urban expressways. Background technique [0002] Studies have shown that under heavy traffic volume and low visibility weather conditions (heavy rain, snow, fog, etc.) during holidays, there will often be serious traffic congestion at the entrance and exit of expressway toll stations, and the probability of traffic accidents will increase significantly. Adopting the traffic collaborative control technology at the junction of expressway and urban expressway, it can dynamically optimize the control and reasonably guide the traffic flow in and out of the expressway, so as to reduce traffic congestion and ensure traffic safety. [0003] At present, in the junction of expressway and urban expressway in our country, there are few traffic si...

AI Technical Summary

Problems solved by technology

[0003] At present, in the junction of expressway and urban expressway in our country, there are few traffic signal control or traffic guidance instructions. needs improvement

There are few related patents, the patent number is 200820150208, which provides a road adaptive entrance ramp entrance control device, which is used to adjust the entrance ramp entrance flow control of the main line of the expressway or urban expressway, and the ramp entrance signal lights alternately The change achieves the purpose of flow control, and only restricts the traffic flow that will enter the expressway main line or urban expressway, without considering the flow control that will enter the expressway tollbooth, and does not simultaneously carry out diversion control through traffic guidance instructions

The patent No. 200710038323 provides a real-time state judgment and guidance system for urban road traffic, which judges the traffic state of the set road section according to the flow, speed, occupancy rate, and periodic data packets, and transmits the judgment result to the guidance system in real time. The system is sent to the vehicle-oriented traffic scene, without considering the problem of coordinated control with surrounding traffic signal control

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