Safety Investigation Of Traffic Crashes Incorporating Spatial Correlation Effects
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Safety Investigation of Traffic Crashes Incorporating Spatial Correlation Effects
Author | : Khalid Faleh Alkahtani |
Publisher | : |
Total Pages | : 139 |
Release | : 2018 |
Genre | : |
ISBN | : |
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Therefore, in this research, several statistical methods are used to investigate the association between traffic crash frequency and contributing factors of crash data, which are characterized by 1) geographical referencing (i.e., observed at specific locations) or spatially varying over geographic units when modeled; 2) correlation between different response variables (e.g., crash counts by severity or type levels); and 3) temporally correlated. A Bayesian multivariate spatial model is developed for predicting crash counts by severity and type. Therefore, based on the findings of this study, policy makers would be able to suggest appropriate safety countermeasures for each type of crash in each zone.
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