摘要： 针对城市交通系统仿真软件中广泛使用的线性同余法的不足，分别采用图形逼近和统计检验方法，比较目前使用的和正在研究的随机数发生器。根据范数理论，给出2-范数意义下的统计检验性能评价表达式和误差。分析结果表明，在交通仿真中，采用MT算法可以取得较优性能。通过实例证明MT算法较好逼近了城市交通的真实状态。

关键词: 城市交通仿真, 随机数发生器, 2-范数, 性能评价

Abstract: Aiming at the disadvantage of linear congruential method widely used in urban traffic system simulation software, this paper adopts graphic approximating and statistical testing methods to compare the random number generators that being used and being researched. According to the norm theorem, it presents 2-norm statistical test performance evaluation expression and error. Analysis results indicate that MT algorithm can achieve better performance in traffic simulation. Example gives a proof that MT algorithm approximates actual traffic situation better.

Key words: urban traffic simulation, random number generator, 2-norm, performance evaluation

中图分类号: 

• N945.13