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Among theses dynamic traffic assignment models, the processing of real-time traffic information and the feature of multi-user, stochastic demand the models response rapidly to the changing condition. Traditionally algorithm assignment the traffic flow based on the average network condition, can’t reflect the changing of the traffic. This algorithm the paper inferred dynamic assignment the traffic...
In the light of the conditions that the results of traditional criticality safety vehicle distance are hardly able to guarantee the safety in the sudden reaction of the current vehicle, through studying the conditions of traditional criticality safety distance, considering the impact of abnormal deceleration of the current vehicle on following vehicle, and different response time of drivers, a new...
Through researching at the traditional linear model of car-following, the paper have found it sensitivity is a fixed value, but in the actual process of driving a vehicle, Sensitivity of driver changes with stimulation. This paper set up a new vehicle-following model taking into account the different sensitivity. Through simulation analysis, results show that the new model be able to clarify the car-following...
The relationship between the velocity discreteness ?? and the venture degree of vehicle rear-end accidents on freeway and urban road is researched by NS model. We could get the following as the results of simulation: Firstly, the value of global standard deviation of velocity on freeway is bigger than the one on urban road. Secondly, the value of venture degree of rear-end accidents is added as the...
Based on the NS Model, a mixed traffic flow on single lane is simulated in the paper, which includes two-classification vehicles owing the different max-velocity. How the traffic flow is changed for different density and different discrete degree is researched and the influence of the density of traffic flow and the discrete of following-velocity on the chaos of traffic flow is analyzed in different...
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