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Henan traffic light manufacturer: How to look at traffic signals?
Category: Company News
Jun 26,2022
Henan traffic light manufacturer: How to observe traffic lights?
Every day, you have to drive through intersections. You need to carefully observe the road conditions, including the status of the traffic lights. Running a red light caught by a camera results in a 6-point penalty. So, Henan traffic light manufacturer: How to observe traffic lights?
Henan traffic light manufacturer: How to observe traffic lights?
1. The time and angle at which the traffic light is captured. You must clearly see the traffic light (if possible, you can see 2-3 traffic lights before reaching them). After seeing the traffic light, repeatedly confirm and predict its changes; do not rush, drive calmly.
2. Prediction and judgment methods for the signal light change cycle:
(1) When you see the traffic light from a distance, you should judge the next signal cycle.
(2) Green light: it may not be passable; you can judge based on the yellow light (always be ready to slow down and stop).
(3) Yellow light: based on the distance to the intersection and speed, determine whether to proceed or stop. Henan traffic light manufacturer
(4) Red light: stop. When you see that it is already red from a distance, predict when it will turn green to adjust your driving speed.
What are the control methods for traffic lights?
1. Timed control
Traffic signal controllers at intersections operate according to pre-set timing plans, also known as cycle control. There is only one timing plan per day called single-level timed control; several timing plans are used based on different traffic volumes at different times of the day, referred to as multi-stage timing control. The basic control method is timing control for single intersections. Line control and plane control can also use timed control, also known as static line control systems and static plane control systems. Henan traffic light manufacturer
2. Inductive control
Inductive control involves setting vehicle detectors at intersection entrances, where a computer or intelligent signal controller calculates the timing plan for the traffic lights based on real-time traffic flow information detected by the sensors. The basic method of inductive control is single intersection inductive control, abbreviated as single-point inductive control. Depending on how detectors are set up, single-point inductive control can be divided into semi-inductive control and fully inductive control. Henan traffic light manufacturer
3. Adaptive control
Traffic systems are viewed as uncertain systems that can continuously measure their state, such as traffic flow, number of stops, delay time, queue length, etc. Gradually understand and master the object, compare it with expected dynamic characteristics, and use its differences to change adjustable parameters or generate controls to ensure that regardless of how the environment changes, the control effect can achieve optimal or suboptimal results.
In general, the role of traffic lights is to direct traffic, minimize mutual interference, thereby improving the capacity of intersections and ensuring smoothness and safety at intersections.
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