基于视认特性的公路隧道限速标志位置研究

Research on positions of speed-limit signs of roads and tunnels based on visual recognition

在对驾驶员视认标志过程与驾驶特性进行分析的基础上,建立了驾驶员对隧道限速标志的视认距离公式和车辆减速距离公式,进一步得到隧道限速标志纵向前置距离,为确定隧道限速标志的位置提供依据。

Based on the analysis of drivers＇ visual recognition process of signs and driving features, the paper establishes the visual recognition distance formula of tunnel speed-limited signs and vehicle speed-limit distance formula, and concludes the longitudinal front distance of tunnel speed-limit signs, so as to provide some reference for the location of tunnel speed-limit signs.