Traffic Light Poles: Installation Requirements for Road Intersections
Cities rely on traffic lights to maintain smooth traffic and reduce accident risks.
Basic Installation Principles of Traffic Light Poles
Install traffic light poles in line with road safety and smoothness requirements. They must meet national standards and stay clear, eye-catching and intact.Keep proper spacing for trees, plants, billboards and pipelines near roads. Never let them block traffic lights or hinder safe sight distance. They must not affect normal traffic flow.
Scientific Setting of Traffic Lights
Set traffic lights scientifically to boost road efficiency. Adjust signal durations differently for peak and off-peak hours.Set automatic night yellow lights in some areas. Optimize green light settings at three-way straight intersections.
Scientific Setting of Traffic Lights
Ensure all traffic light settings are reasonable and practical.
Traffic Light Settings at Straight Intersections
Straight intersections usually use one set of traffic lights. Vehicles stop on red and go straight on green.Most intersections allow U-turns at both green and red lights. Some areas mark “U-turn only at red light” for safety.Never make U-turns if there is a “No U-turn” sign to avoid violations.
Traffic Light Settings at T-Junctions
T-junctions have one set of red, yellow and green lights each. Red light means vehicles on that road must stop.Right-turn vehicles can pass if they do not hinder pedestrians. They must yield to opposite left-turn vehicles first.Yellow light allows vehicles past the stop line to continue. Green light permits all vehicles to pass freely.Turning vehicles must not hinder other moving vehicles.
Traffic Light Settings at Crossroads
Crossroads need at least two sets of traffic lights, usually arrow-pointing types.U-turn vehicles do not depend on traffic lights in most cases. Many crossroads require straight vehicles to follow left-turn signals.Straight vehicles follow red-stop and green-go rules strictly.Right-turn vehicles need not wait for green lights and must avoid straight vehicles.
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How Many Traffic Lights Are Reasonable for Road Intersections
How Many Traffic Lights Are Reasonable for Road Intersections
