Identification of Hazardous Road Locations for Pedestrians

Abstract Hot zone methodology is promising in the identification of hazardous road locations. The key steps involve geo-validation of road crashes, segmentation of road network into basic spatial units (BSUs), calculation of actual crash intensity, definition of threshold value, and examination of spatial proximity of BSUs. This research applies the hot zone methodology to identify dangerous road locations for pedestrians during the study period of 2005 to 2007 in Kwun Tong District of Hong Kong. In particular, the crash intensity was calculated by a casualty-weighted method, which assigns different weights to different injury severity types. Two negative binomial regression models were employed to determine the threshold values. One could be treated as a base model which includes the length of BSU as the only explanatory variable. The other, regarded as a full model, introduces diverse environmental variables that might have influenced the distribution of pedestrian casualties.

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