Study On The Influence Of Driver's Personality On Traffic Flow At Signalized Intersection Based On Gipps

The living standards of residents have risen rapidly,and the number of motor vehicles has increased year by year.The congestion problem at urban intersections has become more serious,which has reduced the quality of life of urban residents and alleviated the traffic congestion at urban intersections.This has been a problem that traffic practitioners have been plagued.Based on the theory of traffic flow,this paper intends to construct a cellular automaton model of the intersection segment considering the driver's character and simulate the simulation.Simulate the traffic behavior of different character drivers at the intersection of the city,and analyze the city from the driver's personality factors.Traffic flow at the intersection,analyze the traffic flow mechanism at the intersection of the city,analyze the traffic flow phenomenon at the intersection with the countdown signal,and ease the traffic congestion at the intersections.This paper is mainly based on the autonomic theory of cells,considering the different character types(Impulse driver,Steady driver,Timid driver)to build a single-lane and three-lane cellular automaton model for intersections,due to different personalities.In order to better reflect the influence of different drivers' different lane changing needs on the traffic flow at the intersection,It is better to build a more representative three-lane intersection model after building a single lane intersection model.The model follows the behavior of the vehicle at the intersection,and the model uses the gipps to follow the theory to simulate the following phenomenon of the vehicle at the intersection.The gipps car-following model calculates the safety distance between the vehicles from the perspective of kinematics,and compares the vehicle with The distance between the preceding vehicles gets the safe speed of the vehicle.For the purpose of safety,the maximum limit simulates the car-following phenomenon of the traffic flow at the intersection under the control of the countdown signal.The paper initially simulates the intersection traffic flow under given parameters and analyzes the driver's personality of different characteristic ratio combinations to influence the average speed,average density,average flow,and average delay of the intersection section,then adjust the intersection traffic,and analyze the intersection.The influence of the driver's character on the average speed,average density,average flow,and average delay of the vehicle in the three-phase flow state of the mouth section is as follows: the intersection of the free-flow state,the average speed of the road section,and the average Density,average delay,and average traffic flow are less affected by the driver's personality.At the intersection of the synchronous flow state,when the intersection of the impulse and steady drivers is relatively high,the average of the intersections during the green light period.Higher speed,longer duration,lower average density,lower average traffic volume,and smaller average delays;When the intersection of the steady and impulse drivers accounted for a relatively high total,the intersection section of the vehicle during the green light period The average speed will be higher,longer duration,the average density will be smaller,with an average traffic volume will be smaller,the average delay would be smaller.Based on the gipps safety distance-following theory,the cellular automaton model is established.At the same time,the cell length is refined,the dynamic performance of different vehicle types is considered,the traffic flow of the driver's character to the signalcontrolled intersection is analyzed,and the intersection traffic phenomenon is analyzed from the perspective of traffic flow theory.Standardize the driving behavior of the driver's intersection and ease traffic congestion.