Led Traffic Lights Basic Information:
LED
traffic lights are light and color signals that are alternately replaced at a specified time. They are usually installed at intersections or other special places to assign roadway rights to vehicle drivers and pedestrians, and to control traffic control facilities for stopping and turning. . Located at a fork in the road or other necessary places. Signal lights are an important part of traffic signal command and the basic language of road traffic. Traffic lights are composed of red lights (indicating no traffic), green lights (indicating traffic allowed), and yellow lights (indicating warning). Divided into: motor vehicle signal light, non-motor vehicle signal light, crosswalk signal light, lane signal light, direction indicator light, flashing warning light, road and railway intersection signal light. It is widely used in highway intersections, bends, bridges and other dangerous sections with hidden safety hazards, to direct drivers or pedestrians to traffic, promote smooth traffic, and avoid traffic accidents and accidents.
Function classification:
Traffic control lights use circular red, yellow, and green lights and arrow patterns to assign the right of way for traffic in different directions in a time-changing manner; or by circular lights containing only red and green, To control traffic in one-way wheels. It is generally located at a fork in the road or on a road with one-way wheel release control. According to the operation mode:
Timing signal lights, traffic sensor lights, traffic adjustment lights, pedestrian traffic lights are used in conjunction with traffic control lights, with square red and green lights with patterns of "standing pedestrians" and "walking pedestrians" to control pedestrians crossing the street. A fork in the road or the middle of the road. According to the operation mode:
Pedestrian touch signals with timing signals Special traffic signals include: Lane control signal lights are square red and green lights with cross-shaped and arrow patterns. The right to use the lanes is allocated and located in the middle of the road or toll stations. Four-signal time-phase signal lights at multi-temporal intersections (installed at T-shaped and Y-shaped intersections and intersections where left, right, and no entry are prohibited, the time for vehicles to turn left will be restricted). Multi-temporal intersections with five-signal time-phase signal lights (set at intersections from three lanes to four lanes, red, yellow, left-turn green arrows, forward green arrows, right-turn green arrows, etc., five lights to control the movement of vehicles Stop, in addition, the fixed left turn time of this signal light is set to red light and green arrow to turn left to allow vehicles to turn left). Railway level crossing signal lights are parallel circular double flashing red lights, which prohibit pedestrians and vehicles from crossing the railway level crossing, and are set in front of the railway level crossing. The crosswalk signal light is a parallel double-flashing yellow light signal to warn that approaching vehicles should slow down. If there are pedestrians, they must pause to allow pedestrians to cross the street first. They are set in front of the zebra pattern pedestrian crossing marking. Special flashing lights are flashing red or yellow lights on a single mirror to warn approaching vehicles to pay attention to the road conditions ahead. They should stop or slow down first, and then stop at a fixed speed depending on the road conditions. They are set in front of forks or dangerous roads. Blind audio signal lights are set up with dedicated pedestrian signal lights or crosswalk signal lights with fixed audio sources to inform the blind of the direction in which the blind can pass and warn the vehicle driver that the blind is passing. If necessary, set at a fork in the road or a section of the road near the place where the blind travels are concentrated. The ramp instrument control signal lights use circular red, yellow, and green lights or the alternation of red and green lights to control the movement of vehicles on the on-ramp to restrict vehicles from entering the main line of the expressway. At the location where the entrance ramp connects with the acceleration lane. Its operation mode can be timing signal light or traffic adjustment signal light.
Signal light source:
LED (Light Emitting Diode) is a new type of light source developed and produced in recent years. It has low power consumption (current only 10-20mA), high brightness (light intensity up to tens of thousands of mcd), and small size (the smallest diameter can reach 3mm) , Light weight (a light-emitting diode weighs only a few ten grams), long life (average life span of 100,000 hours) and other advantages. It has gradually replaced incandescent lamps and low-voltage tungsten halogen lamps to make road traffic signal lights.
Design requirements:
1. Standard: Comply with GB14887-2003 standard.
2. Appearance design: The appearance is specially designed for LED light source, the structure is ultra-thin and humanized, the appearance is beautiful, the craftsmanship is fine, and it is easy to install in multiple combinations.
3. Light-transmitting design: The outer surface of the light-transmitting lens adopts an inclined surface design to prevent dust accumulation.
4. Shell material: The shell is made of die-cast aluminum or polycarbonate (PC) material and silicone rubber seals, which are dust-proof, waterproof, flame-retardant, anti-aging, and have a long service life.
5. Light source: The light source adopts imported chip four-element ultra-high-brightness light-emitting diode (LED), which has strong brightness and is easy to identify. And it has a long life and good energy saving effect.
