The Impact of the Accesses on the Operating Speed of Two-Lane Highways
Zhandong Zhu, Jian Rong · 2010
The accesses are the gates of vehicles leaving and entering into the road system. The consistency of the accesses has a close relationship with the road capacity. The accesses also have some impact on the natural operating speed. Through the investigation of the speed of the vehicles on the main lane passing by the accesses, a conclusion that they decelerated when they passed by has been made, and that the range of deceleration has a close relation with the access interval. then the range of deceleration has been discovered by computing the delay of the vehicles. And finally the reduction ratio of the operating speed to the accesses density has been calculated. The conclusion provides a basic data for predicting the operating speed of two-lane highways.