摘要
目前国内外还没有针对路钮的设置间距进行相关的模型研究,实施中通常根据经验进行设置。笔者基于曲线曲率最佳感知精度和路钮视像连续的两种设置原理,并考虑驾驶员的视觉特点、车辆的灯光照射性能,提出以视线诱导为目的,在驾驶员视野范围内始终出现4块路钮的设置间距与曲线半径的关系模型;并以路钮视像在人眼中形成一条连续的诱导线为目的设置间距与道路设计车速之间的关系模型。在两种方法的最终设置间距中取两种模型的小值作为最终的设置间距,并根据反光及不反光路钮的特点、设置的经济性和路段的交通安全状况对其设置方式作了分析和探讨。经研究,该模型可作为相关规范中路钮设置间距的依据。
There is no relative model study about the set of road studs at present, and the set of road studs is often based on experience in practice. To overcome this shortage, according to the two setting principles of best perception accuracy on the curvature of curve and stud visual image continuity, a relation model between stud space and the radius of curve to keep 4 studs within the driver＇s sight all along is presented with consideration of drivers＇visual characteristics and car＇s lighting performance. Meanwhile, another relation model between stud space and road ＇s design speed is also put forward with the successive induced line formed by stud visual images in driver＇s eyes as the principle. After calculation by the two models, the minimum stud space can be chosen as the final space needed. Finally, the setting way is analyzed and discussed according to the characteristic of the reflecting and unreflecting studs, economy and traffic safety status. This model can be regarded as a reference to the space setting of road studs.
出处
《中国安全科学学报》
CAS
CSCD
2007年第11期113-118,共6页
China Safety Science Journal
基金
国家自然科学基金资助(50778142)
关键词
突起路标
合理间距
曲率感知精度
视觉惰性
交通安全
road studs
reasonable space
curvature perception precision
sight inertia
traffic safety
