Industry logistics technology: What are the classification of traffic lights?

Traffic lights have round red, yellow and green lights and arrow patterns. They can be used to assign traffic directions in different directions in time-changing mode; or circular lights with only red and green colors to control orders. Traffic to the wheel. It is usually located at the intersection or on the road that implements one-way wheel control.

According to the mode of operation, it can be divided into:

Timing signal

Traffic signal light

Traffic adjustment signal

Pedestrian-specific signal lights are used in conjunction with traffic control traffic lights. They are provided with square red and green lights with the pattern of "standing pedestrians" and "walking pedestrians" to control pedestrians crossing the street. They are located at the intersection or middle section of the road.

Special traffic lights include:

The lane control signal light is a square red and green light with a fork and arrow pattern, and the right to use the lane is assigned to the middle section of the road or toll station.

Multi-phase intersection four-lamp phase signal light (for T.Y-shaped intersection or forbidding left turn. Right turn. Entering the intersection will limit the left turn time of the vehicle).

Multi-phase intersection five-lamp phase signal light (for the intersection of the three-lane road, with red, yellow, left turn green arrow, forward green arrow, right turn green arrow, etc. 5 lights to control vehicle travel and limit vehicles Turn left time).

The railway level crossing signal light is a parallel double-flash red light. It is forbidden for pedestrians and vehicles to cross the railway level crossing and is located in front of the railway level crossing.

Pedestrian crossing signal lights are tied in a circular double flashing yellow light to warn that the approaching vehicle should slow down and slow down. If pedestrians pass through, they must suspend pedestrians to cross the street first, and set them in front of the zebra crossing pedestrian crossing.

The special flashing signal light flashes red or yellow light with a single mirror to warn the approaching vehicle to pay attention to the road ahead. It should be paused or decelerated first, then the road condition should be fixed, and it should be placed at the intersection or dangerous section.

The blind audio signal is set by means of a pedestrian-specific signal light or a pedestrian crossing signal light together with a fixed sound source to inform the blind person of the direction of the passage and to warn the driver of the vehicle that a blind person passes. If necessary, it should be located at the intersection or section of the road near the spot where the blind travels are concentrated.

The signal control lights of the ramps are controlled by the round red, yellow and green lights or the red and green lights to control the vehicle's stop on the entrance ramp to limit the vehicle's entry into the main line of the expressway. The location where the entrance ramp is connected to the acceleration lane. It can be operated as a timing signal or a traffic adjustment signal.

traffic light