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Applying the Highway Safety Manual to Two-Lane Road Curves

机译:将高速公路安全手册应用于两车道弯道

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摘要

This paper evaluates the Highway Safety Manual (HSM) crash prediction model using data on two-lane rural horizontal curves in North Carolina. An analysis of the local conditions calibration factor for the HSM predictive model in North Carolina found that a large number of sites (approximately 300) are required to meet HSM recommendations. The results showed that annual average daily traffic, curve radius, and curve length were the most important factors in determining crash prediction accuracy, but that average or default values may be used for other parameters with less risk to accuracy.
机译:本文使用北卡罗莱纳州两车道农村水平曲线上的数据评估了公路安全手册(HSM)的碰撞预测模型。对北卡罗来纳州HSM预测模型的本地条件校准因子进行的分析发现,要满足HSM建议,需要大量站点(大约300个)。结果表明,年平均日交通量,弯道半径和弯道长度是确定碰撞预测准确性的最重要因素,但平均值或默认值可用于其他参数,而准确性降低的风险较小。

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