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首页> 外文会议>Traffic congestion and traffic safety in the 21st century : Challenges, innovations, and opportunities >Development of Volume-to-capacity Based Accident Prediction Models
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Development of Volume-to-capacity Based Accident Prediction Models

机译：基于容量对容量的事故预测模型的开发

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摘要

This study focused on developing relationships between accident rates and the capacity of the roads, particularly the rural interstate highwasy. Accident prediction models were developed that used the V/C (volume/capacity) as a predictor variable. A concept of modified capacity is introduced, where the design capacity is adjusted to incorporate other geometric factors. This modified capacity includes variables that represent surface rates, surface types, inside shoulder width, and others that may have significant impacts on the accident occurrence, which are not directly weighed when capacity is calculated. A model presented here is for rural interstate highwasy. Data is based on an averaged data set of six years. This model is part of a more comprehensive study where several models were created also for urban interstate highways, rural and urban two-lane highways, and urban and rural multilane highways.
机译：这项研究的重点是发展事故率与道路通行能力之间的关系，特别是农村州际公路通行能力。开发了事故预测模型，该模型使用V / C（体积/容量）作为预测变量。引入了修改容量的概念，其中调整了设计容量以合并其他几何因素。修改后的容量包括代表表面速率，表面类型，内胎肩宽度的变量，以及可能对事故发生产生重大影响的变量，这些变量在计算容量时不会直接权衡。这里介绍的模型适用于农村州际高速公路。数据基于六年的平均数据集。该模型是更全面研究的一部分，在该研究中，还为城市州际公路，农村和城市两车道高速公路以及城市和农村多车道高速公路创建了几种模型。

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