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文章利用时间序列分析方法和数理统计方法对北京某公路路段上布设的轴载检测器采集的交通数据进行了深入研究。首先,对日交通流量和日超限车流量的变化趋势进行了分析,并对同一地点两者之间的相关性进行了研究,同时对同一地点日超限车流量所占比例的变化趋势及波动范围进行了分析;其次,对按速度区间统计的超限车流量与按速度区间统计的交通流量进行了统计分析:对于同一地点,按速度区间统计的超限车流量最大值与按速度区间统计的交通流量最大值位于不同的速度区间。分析结果为公路管理,特别是治理超限运输提供了参考依据。
In this paper, the time series analysis and mathematical statistics are used to study the traffic data collected by the on-board detector deployed on a highway section in Beijing. First of all, the paper analyzes the trend of daily traffic flow and day overrun traffic flow, and studies the correlation between the two locations in the same place. At the same time, The range of fluctuation was analyzed. Secondly, the statistical analysis was made on the excess traffic flow and the traffic flow according to the speed interval statistics. For the same location, The maximum statistical traffic flow lies in different speed ranges. The results of the analysis provide a reference for highway management, especially for handling overrun transportation.