隧道出口至主线收费站最小净距研究

Minimum Clear Distance between Tunnel Exit and Mainline Toll Station

针对我国隧道出口至主线收费站净距研究成果较少的现状,在分析驾驶人驶出隧道洞口后的驾驶行为的基础上,分析了隧道出口至主线收费站最小净距的影响因素,包括隧道出口驾驶人的明适应、变道准备、车道变换等主要影响因素,并建立这些影响因素的距离计算模型。其中为研究车道变换所需的距离,建立了满足车辆行驶特征的等速偏移余弦曲线换道模型。最后对各影响因素的距离进行了定性的分析,提出了隧道出口至主线收费站最小净距的建议值。

There are lessstudies of the clear distance betweenthe tunnel exit and mainline toll station in China,in this paper based on the analysis of driving behavior after driving out of tunnel,the factors affecting the minimum clear distance between tunnel exit and mainline toll station are analyzed,including driver＇s adaptation at tunnel exit,preparation of lane changing,and lane change and so on,and the distance calculation model of these influencing factors is established.In order to study the distance required for lane changing,a constant speed offset cosine curve changing model is established to meet the vehicle driving characteristics.At last the qualitative analysis of the distance of each influencing factor is made,and the minimum clearance between the tunnel exit and the toll station is proposed.