Signals maintained by King County Road Services

For more information about this layer please see the GIS Data Catalog. Traffic signals, also known as traffic lights or stoplights, are devices that control the flow of traffic at intersections, pedestrian crossings, and other locations. They use lights and symbols to communicate with drivers and other road users, instructing them on what to do如需了解该图层的详细信息，请参阅地理信息系统（GIS）数据目录。交通信号灯（Traffic signals），亦称交通灯（traffic lights）或停车信号灯（stoplights），是用于管控路口、人行横道及其他场所交通流的专用设备。该类设备通过灯光与符号向驾驶员及其他道路使用者传递指令，指引其通行行为。