Analysis of Limiting Speed and Traffic Capacity at Central Median Opening during Freeway Reconstruction and Extension

Abstract

As “operating while constructing†model is widely used in the freeway reconstruction, in this paper, by analyzing the traffic conversion characteristics of vehicles, influence factors of the median opening capacity to build limited speed at median openings calculation model were respectively discussed, empirical formula and reference values of limiting speed at the median opening were given. And the median opening limiting traffic capacity of expression was given under the condition of different limiting speeds.