Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0001-4575(02)00003-9
Title: Applying the random effect negative binomial model to examine traffic accident occurrence at signalized intersections
Authors: Chin, H.C. 
Quddus, M.A.
Keywords: Accident occurrence
Goodness-of-fit
Intersection characteristics
Random effect negative binomial
Signalized intersections
Issue Date: Mar-2003
Source: Chin, H.C., Quddus, M.A. (2003-03). Applying the random effect negative binomial model to examine traffic accident occurrence at signalized intersections. Accident Analysis and Prevention 35 (2) : 253-259. ScholarBank@NUS Repository. https://doi.org/10.1016/S0001-4575(02)00003-9
Abstract: Poisson and negative binomial (NB) models have been used to analyze traffic accident occurrence at intersections for several years. There are however, limitations in the use of such models. The Poisson model requires the variance-to-mean ratio of the accident data to be about 1. Both the Poisson and the NB models require the accident data to be uncorrelated in time. Due to unobserved heterogeneity and serial correlation in the accident data, both models seem to be inappropriate. A more suitable alternative is the random effect negative binomial (RENB) model, which by treating the data in a time-series cross-section panel, will be able to deal with the spatial and temporal effects in the data. This paper describes the use of RENB model to identify the elements that affect intersection safety. To establish the suitability of the model, several goodness-of-fit statistics are used. The model is then applied to investigate the relationship between accident occurrence and the geometric, traffic and control characteristics of signalized intersections in Singapore. The results showed that 11 variables significantly affected the safety at the intersections. The total approach volumes, the numbers of phases per cycle, the uncontrolled left-turn lane and the presence of a surveillance camera are among the variables that are the highly significant. © 2002 Elsevier Science Ltd. All rights reserved.
Source Title: Accident Analysis and Prevention
URI: http://scholarbank.nus.edu.sg/handle/10635/65175
ISSN: 00014575
DOI: 10.1016/S0001-4575(02)00003-9
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

147
checked on Dec 5, 2017

WEB OF SCIENCETM
Citations

120
checked on Dec 5, 2017

Page view(s)

48
checked on Dec 11, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.