Science and technology trends In traffic management, traffic lights look very small, but they have a very powerful role in managing traffic order. A reasonable traffic signal setting will not only help increase traffic flow capacity, reduce traffic safety hazards, and reduce travel time, but also effectively reduce transportation energy consumption and reduce urban air pollution. The urban traffic network construction has been continuously improved. Each area has begun to unify traffic lights and set reasonable time for traffic lights, and intelligently control traffic lights according to different traffic volumes. It will not only help the driver to concentrate on the road conditions, reduce driver fatigue symptoms, but also reduce vehicle waiting time, ease urban traffic congestion, and effectively reduce unnecessary traffic safety hazards.
The role of traffic signals, such as traffic signals, is undeniable. However, the phenomenon of red light is still a common phenomenon, and China’s “Chinese-style country road†is to ignore the role of traffic lights. On the one hand, it reflects the social moral education of the public. On the other hand, is it also possible that our traffic lights can become intelligent? When the number of people is large, it will automatically turn green light to allow pedestrians to pass. When the number of people is small, the green light will appear in the endless loop and the traffic will be delayed.
Now, this idea seems to be realized! The London Transport Authority recently announced that they will conduct tests on the "smart" sidewalk. The test is based on a system called SCOOT (Split Cycle Offset Optimisation Technique), which is part of London’s plan to invest £2 billion to £4 billion to improve roads within a decade, aiming to reduce the rate of accidents in London by 2020. %.
SCOOT is mainly to solve the problem of how to set the traffic light time reasonably and allow pedestrians to cross the sidewalk more effectively while maintaining the smooth flow of traffic. This is the most difficult to achieve in the high flow area. Ideally, the traffic light should allow every pedestrian crossing the road to have enough time to cross the road, but this will certainly have an impact on traffic. What's worse, some people in London walked away by pressing the button, and the drivers had no choice but to wait.
SCOOT uses video camera technology to adjust the traffic time by automatically counting the number of people who need to cross the street. When a large number of pedestrians are detected waiting, the system will automatically extend the green light release time, so that people have enough time to cross the road. In addition, if no person is detected crossing the road, and someone has left the pass button, the system will automatically switch to the "call canceled" state without activating the green light.
By adopting the puffin sidewalk, the system can also increase the safety factor for pedestrians crossing the road. Now, such sidewalks have sensors installed on the signal light boxes, and when they detect that a pedestrian is waiting, they can actively change the color of the signal light. Different from the previous Pelican sidewalk, the upgraded signal light is converted from a traffic light pattern to a human-like “walk/stop†pattern, which makes it easier for the handicapped to see the color of the signal light, and it also eliminates the flickering process when changing signals.
According to Lord Mayor Boris Johnson and London Transport Authority, SCOOT is the world's first intelligent transportation system for sidewalks. It had applied to 2100 important road sections when hosting the Olympics in London, and reset the traffic lights of 1300 sections.
Conclusion: The role of urban traffic lights is mainly to control the movement of people and vehicles. Traffic lights in single mode can no longer meet the growing traffic environment. Intelligent traffic lights are not only technological innovations, but also can make the most use of transportation resources. . With the popularization of intelligent traffic lights, urban road congestion may be effectively mitigated.
The role of traffic signals, such as traffic signals, is undeniable. However, the phenomenon of red light is still a common phenomenon, and China’s “Chinese-style country road†is to ignore the role of traffic lights. On the one hand, it reflects the social moral education of the public. On the other hand, is it also possible that our traffic lights can become intelligent? When the number of people is large, it will automatically turn green light to allow pedestrians to pass. When the number of people is small, the green light will appear in the endless loop and the traffic will be delayed.
Now, this idea seems to be realized! The London Transport Authority recently announced that they will conduct tests on the "smart" sidewalk. The test is based on a system called SCOOT (Split Cycle Offset Optimisation Technique), which is part of London’s plan to invest £2 billion to £4 billion to improve roads within a decade, aiming to reduce the rate of accidents in London by 2020. %.
SCOOT is mainly to solve the problem of how to set the traffic light time reasonably and allow pedestrians to cross the sidewalk more effectively while maintaining the smooth flow of traffic. This is the most difficult to achieve in the high flow area. Ideally, the traffic light should allow every pedestrian crossing the road to have enough time to cross the road, but this will certainly have an impact on traffic. What's worse, some people in London walked away by pressing the button, and the drivers had no choice but to wait.
SCOOT uses video camera technology to adjust the traffic time by automatically counting the number of people who need to cross the street. When a large number of pedestrians are detected waiting, the system will automatically extend the green light release time, so that people have enough time to cross the road. In addition, if no person is detected crossing the road, and someone has left the pass button, the system will automatically switch to the "call canceled" state without activating the green light.
By adopting the puffin sidewalk, the system can also increase the safety factor for pedestrians crossing the road. Now, such sidewalks have sensors installed on the signal light boxes, and when they detect that a pedestrian is waiting, they can actively change the color of the signal light. Different from the previous Pelican sidewalk, the upgraded signal light is converted from a traffic light pattern to a human-like “walk/stop†pattern, which makes it easier for the handicapped to see the color of the signal light, and it also eliminates the flickering process when changing signals.
According to Lord Mayor Boris Johnson and London Transport Authority, SCOOT is the world's first intelligent transportation system for sidewalks. It had applied to 2100 important road sections when hosting the Olympics in London, and reset the traffic lights of 1300 sections.
Conclusion: The role of urban traffic lights is mainly to control the movement of people and vehicles. Traffic lights in single mode can no longer meet the growing traffic environment. Intelligent traffic lights are not only technological innovations, but also can make the most use of transportation resources. . With the popularization of intelligent traffic lights, urban road congestion may be effectively mitigated.
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