Cooperation Strategy Between Traffic Guidance And Signal Control Under Urban Traffic Incident

The traffic volume on the urban road is very large during the rush hour, in thissituation, wild range congestion may be caused a traffic incident. The waste of energycaused by congestion is becoming one of the barriers of city sustainable development.Meanwhile, the requirement of traffic manager is getting stricter and stricter. How todefine the severity of the congestion caused by traffic incident quickly, how todetermine the method to manage congestion, how to coordinate the different systemsare becoming a vital part of ITS.This essay analysis mechanism of traffic incident, effect on urban traffic systemand the traffic parameters’ applicability to evaluate traffic incident. Discuss theapplicability and effectiveness of traffic management strategies. Propose method toclassify traffic incident for department of traffic management. The reliable result ofclassification is the basis of determine the method to manage congestion.To ensure the optimization for area traffic, the relationship between trafficguidance and signal control must be considered under traffic incident condition. Afteranalyzing the demand, target, and relationship between traffic guidance and signalcontrol, this essay propose an integrated model based on traditional SODTA with turnpenalty and regional traffic signal control model. This model can be used forming planfor managing congestion caused by traffic incident.Finally, test the effectiveness of the classify method and integrated model usingVissim5.4, provide theoretical basis for traffic control and management under trafficincident.