行车安全与否取决于交通过程中人、车、路、环境之间是否保持协调。而环境是构成行车安全的基本要素。关于驾驶安全环境,它是指影响驾驶员安全行车的种种外界条件和内在条件。这些条件主要包括:道路交通环境,静态交通环境(交通信号、交通标志等固定交通设施),动态交通环境(驾驶员、行人、骑自行车者等),车辆环境和 Traffic safety or not depends on the traffic process, people, vehicles, roads, whether to maintain coordination between the environment. The environment is an essential element of driving safety. About driving safety environment, it refers to affect the driver safe driving a variety of external conditions and internal conditions. These conditions include: road traffic environment, static traffic environment (traffic signals, traffic signs and other fixed transport facilities), dynamic traffic environment (drivers, pedestrians, cyclists, etc.), vehicle environment and