Vehicle deceleration and vehicle spacing increase system

Abstract

The invention discloses a vehicle deceleration and vehicle spacing increase system. The system includes a device for identifying and dynamically displaying vehicle spacing information and traffic flow parameter controlled led lamp apparatuses paved at both sides of a traffic lane cut-off line. The traffic flow parameter controlled led lamp apparatuses paved at the both sides of the traffic lane cut-off line include led lamp belts and control units. The device for identifying and dynamically displaying vehicle spacing information includes a variable information plate, a wireless transmit-receive module, a video camera, vehicle velocity measurement radar, an identification module, a vehicle spacing calculation module, and a power supply. The vehicle deceleration and vehicle spacing increase system can induce drivers to reduce the vehicle velocity and increase the space headway, improves vehicle-following safety, effectively reduces traffic accidents, and has the advantages that the driving comfort is not reduced and the noise is not generated.

Description

technical field [0001] The invention relates to the field of traffic safety, in particular to a vehicle deceleration and vehicle distance increasing system. Background technique [0002] Accident intensity and number of accidents are related to vehicle speed and speed difference. About one-third of fatal crashes in the United States involve speeding. According to research by Australian traffic experts, when the vehicle speed is greater than 60km / h, the accident rate is about doubled for every 5km / h increase in vehicle speed, and the severity of accidents increases exponentially. According to the research of the US Federal Highway Administration, 85% of adjacent road sections have a speed difference of less than 10km / h, and the accident rate per million vehicle kilometers is 0.46; when it is 10-20km / h, the accident rate is 1.44; when it is greater than 20km / h, the accident rate is 2.76 ; The speed difference increases and the accident rate increases exponentially. Accordin...

AI Technical Summary

Problems solved by technology

However, there are corresponding defects in various methods: (1) Although the intelligent speed control method is advanced, it cannot completely replace the driver's control of the speed of the vehicle under complex road and traffic conditions.

The adaptive cruise control system scans and detects the traffic environment, image synthesis, and status hazard identification are time-consuming, costly, and poorly real-time. The research is not mature, and some studies have found that the average speed of vehicles equipped with adaptive systems is higher: when driving After using the adaptive cruise control system, drivers tend to take overtaking behavior to maintain their preferred speed; (2) The effect of vibration deceleration may be weakened with the improvement of vehicle vibration damping performance, which will cause a certain degree of damage to the road surface; (3) Due to the low compliance rate of the driver, the speed limit sign has a poor speed reduction effect; (4) the perceived lane reduction has a poor speed reduction effect; (5) the speeding capture system cannot prevent problems before they happen; (6) the stereoscopic illusion marking can cause driving However, for drivers who are not familiar with the situation, it is easy to cause emergency braking and induce rear-end collision accidents. For drivers who are familiar with the situation, the speed-down effect is greatly weakened; (7) Thin-layer pavement passes through the color And the vibration reminds the driver to reduce the speed of the vehicle, but the vehicle vibration it brings also leads to aggravated road surface damage

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