TY  - JOUR
PY  - 2023//
TI  - Investigating injury severity interaction between urban and urban-rural fringe areas: a grouped random parameters seemingly unrelated bivariate probit approach
JO  - International journal of injury control and safety promotion
A1  - Xiao, Daiquan
A1  - Yuan, Quan
A1  - Xu, Xuecai
A1  - Zhang, Shibo
SP  - ePub
EP  - ePub
VL  - ePub
IS  - ePub
N2  - Urban-rural integration is the critical process of urbanization, while during this process there are various corresponding problems generated, safety is the most important one, especially at urban-rural fringe areas due to mixed traffic flow and complicated land use. This study intended to investigate the injury severity interaction between urban area and urban-rural fringe area, and explore the correlation within injury severity levels and heterogeneity attributed to unobserved factors. To address the correlation and heterogeneity issues, a grouped random parameters seemingly unrelated bivariate (SUB) probit model was proposed, in which the SUB probit model addressed the correlation of residuals, while the random parameters model accommodated the heterogeneity due to unobserved factors. By comparing the pooled with random parameters models, the results showed that random parameters SUB probit model performed better than the pooled one, and the dataset collected from 2013 to 2017 in Chengdu, China was adopted to illustrate the proposed model. It is found that crash location, speed limit and age of person injured are significant for injury severity in urban and urban-rural fringe areas, but crash form plays a significant role in urban area while number of persons involved should be paid more attention due to injury severity in urban-rural fringe area. Some empirical suggestions are presented to improve the safety in urban and urban-rural fringe areas.<p />  <p>Language: en</p>
LA  - en
SN  - 1745-7300
UR  - http://dx.doi.org/10.1080/17457300.2023.2258352
ID  - ref1
ER  -