Research On Traffic Organization And Management Measures Of Freeway Tunnel Group

In the construction of highway in mountains, in order to shorten the distance and improve the linear, there are more construction of the tunnel., and the distribution of many tunnel is more dense, and the continuous tunnel of shorter distance constitute tunnel group. At the same time the traffic safety problem produced by special traffic environment of tunnel group is increasingly serious, Once a single tunnel had traffic accidents, if the evacuation is not timely, it’s easy to cause a chain reaction, and cause other tunnel’s traffic congestion, thus affect the traffic capacity of the highway. So how to do well the tunnel group’s traffic organization and improving the traffic safety of the highway from the management has extremely important significance.This paper based on the sanxi highway’s tunnel group sections which from lingbao to lushi as the background, first according to the basic situation of the tunnel distribution, achieving the linkage control between the tunnels, discuss the classification principles of the tunnel group control section, and statistical analysis the tunnel group road’s traffic flow data, then established the traffic flow forecasting model, the traffic incident jam time prediction model and the traffic incident jam length prediction model.Second when a certain tunnel has traffic accident occurs, according to the location of the accident, give the traffic organization and the control strategy in different areas of the tunnel, at the same time give control unit division of the affected tunnel, and consider the influence of the block length, put forward the accident tunnel external traffic organization and control strategy, so as to realize the linkage control of tunnel group.Finally starting from the factors influencing the tunnel group driving safety, put forward adapting to the tunnel group driving environment for drivers, tunnel mechanical and electrical facilities and variable speed-limit control management methods, to guarantee the highway traffic safety.