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基于冲突严重性划分的公路平交口安全评价

, PP. 128-131

Keywords: 交通工程,公路平交口,安全评价,冲突严重性划分,灰色理论

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Abstract:

以公路平交口为研究对象,引入交通冲突技术定量分析交通安全状况,提出应考虑不同严重程度的冲突对交通安全的影响。通过录像观测冲突距离、冲突速度参数,间接获得了一般冲突和严重冲突的TTC指标,并借助累积频率分析的方法,界定出我国公路平交口交通冲突严重性的判定标准,为冲突的分类采集提供了依据。结合对交通量参数的观测,以分时段不同严重程度的冲突数与交通量的比值作为评价指标,运用灰色理论的相关计算方法,对多项评价指标进行聚类分析,得到所调查的8个公路平交口的安全评价结果。

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