Study On Influence Of Forcible Lane-Changing Behavior To Traffic Flow In Intersections

The forcible lane-changing behavior is essentially a case of mandatory lane-changing behavior,which means that the vehicle can be forcible to enter the intersection lane by the original lane at the variable area near the intersection.It is necessary to analyze and explore the forcible lane-changing behavior due to the traffic delay and safety interference.In the course of practical research,the vehicles in the area is classified as forcible lane-changing units and general vehicles in modeling research.The data in collection includes acquisition related to forcible lane-changing vehicle in the process of time,location,speed and other data.Meanwhile,traffic questionnaire investigation of drivers,analysis of driving factors in forcible lanechanging process and importance degree of factors are involved in research.When forcible lane-changing behavior happens,there is also an obvious conflict between forcible lane-changing vehicle and the car behind in the same lane,except the conflict between forcible lane-changing vehicle and the car behind in the target lane.Based on this situation,the game analysis is carried out on the rear vehicle in the main unit of the strong lane changing road and the vehicle where the vehicle is located.According to game analysis and traffic cost theory,we can establish traffic cost model based on the most relevant factors to the selection and change process to quantify the total cost of traffic.And the model can be used in traffic control for traffic management.Based on the traffic data measured in intersections,the speed,time and position of vehicles in forcible lane-changing course are analyzed with software.The delay of the forcible lanechanging vehicle can be analysed according to queuing theory,while the vehicle behind in target lane is solved by the traffic wave delay model.With traffic conflict technique,the conflects of vehicles within the intersection can be divided into no-conflict,slight conflict,general conflict and serious conflict.In order to manage the forcible lane-changing behavior effectively in the future,the signal game knowledge is used to analyze the management of the forcible lane-changing behavior.Based on the conclusion of signal game analysis,this paper puts forward several management suggestions,such as improving mandatory regulation and economic punishment,scientifically setting up forbidden change marking length,improving driver's driving quality and improving traffic signal induction,and providing some references for traffic control department.