How cool is the green light all the way?The longest "dynamic green wave belt" in the province tells you

Author:Zhejiang Public Security Time:2022.07.20

This "green technology" refers to dynamic green wave control. Through innovative phase coordination technology, when the traffic lights are dynamically adjusted in real time according to traffic, it has greatly improved the urban road traffic capacity and citizens' travel experience. This dynamic green wave on Haitian Avenue was jointly developed by Zhoushan Traffic Police and Technology Corporation, with a length of 21 kilometers, and 34 passed through the intersection. It is the longest two -way dynamic green wave belt that is currently running online in the province.

Wang Bin, a police officer of the Command Detachment of the Traffic Police Division of the Zhoushan Public Security Bureau, introduced that green waves are a red and green light control technology. By controlling the time of lighting on the green light, it can ensure that the vehicle can "just happen" at each intersection when driving at a certain speed. Green light.

The static green wave control used by traditional traffic lights, the duration of the green light is fixed. When the traffic changes greatly, it is slightly "dumb". Dynamic green waves are more "clever". They will perceive the traffic in different directions through equipment such as thunder vision machines, and then adjust the green light duration in real time according to the road traffic of the road traffic, so that the traffic light has the ability to "randomly strain". Automatically optimize. In this way, from the previous "car viewing" to "light watching", increasing the frequency of the vehicle encountering green lights and improving the efficiency of vehicle traffic.

Haitian Avenue is the aorta of Zhoushan citizens commuting and foreign tourist vehicles. The bicycle lanes on this section pass through the vehicle flow of about 800 to 1,200 vehicles per hour.

In 2019, the Zhoushan Traffic Police Union and Technology Company optimized and upgraded the control system, and implemented a two -way dynamic green wave on Haitian Avenue. After the implementation of the new control strategy, the driving time of Haitian Avenue was shortened from the previous 40-50 minutes to 20-30 minutes, and the length was shortened by about 50%. The number of vehicles has also decreased significantly. After 34 intersections, only 1-2 red lights are encountered after 34 intersections. Citizen's travel experience has greatly improved.

It is understood that the green waves with more than 10 intersections and a length of seven or eight kilometers are called long green waves. Long -distance green wave belts like Haitian Avenue are rare. The length of the green wave belt increases, which means that the difficulty of calculation has also increased.

In order to break through the technical difficulties, Zhoushan Traffic Police United Science and Technology Company innovated the "phase coordination" technology, combining coordinated control, induction control and adaptive control in traditional traffic light signal technology to achieve the "three effects one" The degree ofization can make more accurate adaptation according to the changes in traffic and increase the upper limit of green wave traffic. This allows Green Bo to play a role not only in the flat peak period, but also in the peak period, which significantly increases the speed of vehicles through the peak period of Haitian Avenue. According to big data statistics, on the peak unblocked index, Zhoushan ranks first in the province.

After running a dynamic green wave, Haitian Avenue is not a fast road, and it looks like a fast road. The completion of the green wave belt of Haitian Avenue has shortened the passage of Dinghai to Putuo from the original nearly one hour to half an hour, forming a half -hour city circle.

The person in charge of the Command Detachment of the Traffic Police Detachment of the Zhoushan Public Security Bureau believes that this technology application has reference significance for small and medium -sized cities. The green wave belt can greatly shorten the driving time at a long distance. For domestic small and medium -sized cities, especially in cities with no elevated fast roads, it has a alternative similar to express roads, which is conducive to expanding the scope of radiation in the city.