At intersections with traffic signals, traffic capacity is closely related to signal timing, road conditions and traffic characteristics. Accurately analyze traffic conditions at intersections, identify key causes of traffic congestion, properly plan intersections, rationally organize traffic, reduce or eliminate conflict points to ensure safe driving and minimize intersection delay. Improve the capacity of intersections, maintain smooth traffic and safeguard public safety. So how to select suitable traffic signal products?1. VisibilityLED traffic signals maintain good visibility under harsh weather conditions such as strong sunlight, cloudy, foggy and rainy days. LED lamps emit monochromatic light, so color modification is unnecessary.2. Energy SavingAlthough a single traffic signal consumes little power daily, a large number of signals across the city add up to considerable power consumption.3. Low Heat GenerationInstalled outdoors, the signals must withstand both cold and hot weather. LED signals avoid damage caused by filament surge and are free from the risk of cracked glass covers.4. Fast ResponseLED chips feature faster response than conventional light sources and help reduce traffic accidents.In summary, LEDs are widely adopted in traffic signals with rapid industry development and extensive transportation applications. LED traffic signals enjoy promising market prospects and have basically replaced traditional light sources. Although the traffic signal market is nearly saturated, the environmental friendliness, energy efficiency and long service life of LEDs leave huge potential for further application in transportation.