期刊
ACCIDENT ANALYSIS AND PREVENTION
卷 63, 期 -, 页码 121-132出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.aap.2013.10.034
关键词
Crash prediction models; Run-off-the-road crash; Functional form; Confidence intervals
Crash prediction models play a major role in highway safety analysis. These models can be used for various purposes, such as predicting the number of road crashes or establishing relationships between these crashes and different covariates. However, the appropriate choice for the functional form of these models is generally not discussed in research literature on road safety. In case of run-off-the-road crashes, empirical evidence and logical considerations lead to conclusion that the relationship between expected frequency and traffic flow is not monotonously increasing. (C) 2013 Elsevier Ltd. All rights reserved.
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