Research On Emergency Signal Control Of Modern Tram

Promoted by development,the world's economy is booming,causing that the problem of traffic has gotten more attention from people.Modern trams,as an environmental-friendly public transport,also has a significant influence on traffic.While it could put passenger into panic,affect normal travel plans,cause heavily traffic accidents when it suffered in emergencies,such as a traffic controller failure,tram derailment,vehicle collision etc..Dealing with emergencies immediately and orderly and providing assistance for passengers as soon as possible play a crucial role in the normal operation system.Therefore,in view of the possibility of emergencies or disaster accident problem for the modern tram,a solution should be put forwarded,the target of the rescue work should be clear and the disaster accident losses should be weakened in order to ensure the orderly expansion of the emergence plan and rescue work.Modern tram emergency signal controlled methods aim at making the passengers leave rapidly,improving the traffic capacity,reducing the impact on passenger travel plans by taking evacuation measures of congestion.Focus on the shortage of domestic and foreign relevant modern tram signal control in emergency,the key idea of this paper is illuminated firstly;In addition,this paper summarizes the theory of emergency modern tram,such as the characteristics of emergency,emergency impact on modern streetcars running state and urban traffic emergency management,etc.;Then,analyzing the demand characteristic of setting vehicle detector and taking the features of emergency vehicles and social vehicles after placing detector into account,the scheme and requirement of setting different detectors are proposed;Finally,paying attention to the emergency influences on modern tram system,this article puts forward a model about the operation of modern tram in emergency,in which the absolute right is giving to the emergency vehicles,that is the signal of modern trams could be chose one of green extension and going ahead green lights according to the current state of modern tram,which has a crucial impact on reducing the delay of intersection effectively.In order to ensure the vehicles could pass the intersection smoothly,the model about signal control of modern tram under an emergency is set up,and the feasibility of the result is verified by using VISSIM.