The precision of count and speed test of inductive loop vehicle detector relates the veracity of traffic flux statistical result, which is verifiable key item.
环形线圈车辆检测器的计数精度和测速精度关系到交通流量统计结果的准确性，是计量检定的关键项目。
Firstly, we have investigated empirically the urban public traffic network in Beijing in 2003, and obtained some statistical properties.
首先，我们实际调研了2003年北京城市公共交通网络，得到了一些统计的性质。
In order to develop ITS, a statistical method of change point to analyze traffic flow breakdown is established in this paper.
针对ITS的开发，建立了分析交通流突变的变点统计方法。
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