公路线形与视觉速度关系的研究

Relationship between vision speed and highway alignment

交通安全与路线线形、行车速度、驾驶人的视觉反应等要素有关系.通过路中线曲线弧长与角度的变化率,讨论行车速度、路线线形与视觉速度的数量关系.进而推导出它们间的函数关系,探讨出行车速度一定时,视觉速度与路线线形之间的关系.

Traffic safety is related to highway alignment,traffic velocity,drivers＇ vision response and so on.This article discusses the quantitative relation between highway alignment,traffic velocity and traffic velocity through the rate of change between an angle and length of a central line.Thus the relationship between the vision speed and highway alignment is studied when the traffic velocity is unchanged,and their function relation is given.