Road bottleneck section identification and traffic jam propagation early warning system and method

Abstract

The invention provides a road bottleneck section identification and traffic jam propagation early warning system and method. The wireless communication equipment detection unit collects a mac addressof wireless communication equipment in a vehicle, records a corresponding timestamp, packages the mac address, the timestamp and position information of the wireless communication equipment detectionunit, and sends packaged data to the data processing center unit. A data processing center unit analyzes and calculates the data sent by the wireless communication equipment detection unit to obtain the average vehicle speed of the road section in a preset time period, and identifies the bottleneck road section of the road; after the bottleneck road section is recognized, congestion propagation ofthe bottleneck road section is predicted on the basis of the traffic fluctuation theory, and a control command is sent to the early warning publishing unit; and the early warning publishing unit publishes congestion early warning prompt information according to the received control instruction. According to the invention, the road traffic state can be detected to identify the road bottleneck section, the traffic jam propagation of the bottleneck section can be predicted, and the traffic jam early warning can be issued to the vehicles at the upstream of the bottleneck section in time.

Description

technical field [0001] The invention belongs to the field of traffic safety, especially when a traffic safety accident occurs on a road, the invention can identify whether a road section is a bottleneck road section, predict the congestion propagation of the bottleneck road section, and give early warning to upstream vehicles of the bottleneck road section, which involves A wireless communication-based system and method for identification of road bottleneck sections and early warning of traffic jam propagation. Background technique [0002] When a traffic safety accident occurs on a certain section of the road, this section will become a bottleneck section, that is, when the vehicle travels to this section, the speed will slow down, and traffic congestion will occur, and the congestion will continue to propagate upstream of the section. Existing technologies for detecting road traffic conditions include coils, geomagnetism, and video detection. These devices can only collec...

AI Technical Summary

Problems solved by technology

These devices can only collect traffic information of a certain road section, and cannot reflect the traffic status of an area

Coils and geomagnetic detection equipment need to be installed below the road surface, and the road surface needs to be cut, which will have a certain impact on traffic during construction

In addition, because the coils and geomagnetism are buried under the road surface, they will be squeezed by the vehicle, and the service life of such equipment is short, requiring constant replacement

Video detection equipment is expensive, and the video data is relatively large. There are certain requirements for bandwidth during data transmission, and the cost is relatively high.

In addition, the most critical thing is that these devices can only detect the traffic status on the road, but cannot predict and warn the spread of traffic jams

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