基于泊松分布的微观交通仿真断面发车数学模型研究

Poisson Distribution Based Mathematic Model of Producing Vehicles in Microscopic Traffic Simulator

在分析交通流概率分布规律的基础上 ,提出一种适用于微观交通仿真的基于泊松分布的断面发车模型 .并根据实际测量情况 ,定义泊松分布的参数λ、α的概率含义 ,再将含有车辆数、时间、概率 3个变量的泊松分布得出在微观交通仿真中使用的发车模型 。

Base on the analysis of Poisson probability distribution law of traffic flow, This paper puts forward a novel car generation model at one section, which adapts to the simulation of microscopic traffic. It defines the probability significations of parameters of Poisson distribution λ,α through factual metering, then translates the varied Poisson distribution which has three variables - number of vehicles, time, probability into mathematical model which is used in microscopic traffic simulator, finally describes the algorithm of computer realization.