Research On Traffic Capacity Between Successive Exit Terminals Of Interchange Ramps In Mountain City

As one of the important components of urban roads, city interchange is theconnection structure of city roads, Be Known as "the throat of urban roads".continuous diverging area on ramp is prone to traffic accidents because of traffic isfrequently interlaced running. Ramp traffic capacity of continuous triage areas werethe significant factors affecting traffic operation of interchange.The research on continuous triage areas of ramp in ChongQing, Definition twodifferent types: ramp to shunt flow in the same direction and shunt flow in thedifferent. Based on the traffic survey of different types of ramp continuous streamingtraffic parameters in the region and statistical analysis, The distribution and velocitydistribution of different types of ramp continuous shunt regions of different ramptraffic, from the chi-square test of calculated by test ramp continuous shunt region5ramps for different periods of time. Finally calculate model flow volume--speed–flow rate using Greenshields model.According to the calculation and analysis of traffic flow in different slope withdifferent speed of peer ability when the degree of influence on the vehicle dynamicstheory. Application of vehicle lane-changing model analysis to ramp shunt andanisotropic driving of vehicles popular diversion area using gap acceptancecalculation formula of weaving area capacity theory, then iterative calculation,Analysis software to calculate the recommended value of different types of rampcontinuous shunt regional capacity utilization of mathematics. Capacity influencingfactor and finally to two different types of ramp continuous shunt region, is proposedto improve the capacity of the scheme.