Based On The Driver Visibility Of Mixed Traffic Flow Cellular Automation Model Research

The urban road traffic flow is a typical mixed traffic flow, the mixed traffic flow of urban road based on cellular automata model is got the attention of many researchers, and obtained the comparatively abundant research results. In micro cellular automata model of mixed traffic flow study, drivers sights were gradually introduced including, make the model closer to actual traffic conditions, but the driver stadia is affected by various factors, the work of this paper is the existing cellular automata traffic flow model on the basis of mixed traffic flow of highway cellular automata model was studied, and a higher vehicle models, after considering the road impact with respectively on the stadia and to drive the vehicle’s high beam affects the stadia two situations, puts forward the corresponding improvement model, and uses the VB.net programming language to achieve, and then to the mixed traffic flow characteristics under the influence of the stadia for analysis.The main content of this paper consists of the following parts, as following:1. On the basis of the NS model, put forward a highway one-way two lane cellular automata model, considering the larger cars, small cars in the model, and the corresponding three types of driver for each vehicle(three driving state), various types of drivers on the one hand, the expectation of driving speed, on the other hand, differ in the lane changing behavior. In this paper, we consider the rear vehicle under the oppression of mandatory passive, in addition, combining with the highway vehicle cart rules on the right, and for the different expected speed, the car driving rules of further agreement, make cellular behavior closer to the actual highway traffic flow.2. In the periodic boundary conditions, considers the different car types models, for accurately simulating the interaction between the actual traffic, based on the analysis of the road vehicle type and the driver stadia relations on the basis of based on neighbor models of cellular automata traffic flow model, design the corresponding car following the rules, and to implement the vehicle features. The model of computer simulation is obtained by using the VB.net programming language, the basic diagram of vehicle speed and density, and the NaSch model, the horizon double traffic flow model under the density velocity map comparison.3.In actual traffic system, vehicle, high beam vehicle driving lamps at night have an impact on drivers of vehicles travelling toward each other, this paper based on this phenomenon, from the perspective of analyzing the modeling of traffic flow, traffic flow, the proportion of the high beam, the high beam effect distance, the effect of high beam on the speed, the car following rule etc the factors to consider, put forward a night driving against traffic vehicle high beam of traffic flow cellular automata model.