基于信号滤波的交通拥堵分析方法研究

发布时间：2018-08-30 10:21

【摘要】：针对交通拥堵定量分析不足的问题,以交通拥堵指数为例,对交通拥堵时间分布规律的定量分析方法进行了研究。利用散点图对全年的日交通拥堵指数进行了分析,提出交通拥堵指数虽然在短期内频繁变化;但在全年范围内表现出一定的变化趋势。基于此,利用信号滤波技术提出了年度交通拥堵指数的分析序列定义、频谱分析和滤波方法。最后,应用该方法研究了2013年度交通拥堵指数的变化规律,分析结果能够合理反映交通拥堵水平随日期的变化趋势,可以为交通拥堵治理提供决策支持。
[Abstract]:In order to solve the problem of insufficient quantitative analysis of traffic congestion, the quantitative analysis method of traffic congestion time distribution is studied by taking traffic congestion index as an example. This paper analyzes the daily traffic congestion index of the whole year by using scatter plot, and points out that although the traffic congestion index changes frequently in a short period of time, it shows a certain trend in the whole year. Based on this, the definition of analysis sequence, spectrum analysis and filtering method of annual traffic congestion index are proposed by using signal filtering technology. Finally, the change law of traffic congestion index in 2013 is studied by using this method. The analysis results can reflect the trend of traffic congestion level with the change of date, and can provide decision support for traffic congestion management.
【作者单位】：浙江省城市治理研究中心;浙江大学;
【分类号】：U491.265

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