TY - JOUR
T1 - Impacts of Work Zone Component Areas on Driver Injury Severity
AU - Osman, Mohamed
AU - Mishra, Sabyasachee
AU - Paleti, Rajesh
AU - Golias, Mihalis
N1 - Publisher Copyright:
© 2019 American Society of Civil Engineers.
PY - 2019/8/1
Y1 - 2019/8/1
N2 - The establishment of work zones along roadways is considered a necessity for the construction of new roadways, the maintenance of deteriorating structures, and to provide access for the installation and maintenance of utilities. This study attempts to investigate the risk factors contributing to driver's injury severity in the different areas that constitute the formation of roadway work zones. The injury severity outcomes of a crash have a natural and discrete ordering, and therefore this study has adopted the mixed generalized ordered response probit (MGORP) model. As compared to the standard ordered response probit model (ORP), which is widely utilized in the injury severity literature, the MGORP framework has the ability to recognize not only the ordering of the injury severity categories, but also allow for the investigation of unobserved effects of risk factors, known in the literature as unobserved heterogeneity. The empirical analysis was conducted using a database that consisted of 10 years of work zone crashes. This database was available through the Highway Safety Information System (HSIS). Elasticity analysis suggests that airbag deployment, alcohol involvement, ejection, seatbelt use, and partial control of access are key factors contributing to the likelihood of severe outcomes. Additionally, the effects of several covariates were found to vary across the different work zone component areas where crashes have occurred.
AB - The establishment of work zones along roadways is considered a necessity for the construction of new roadways, the maintenance of deteriorating structures, and to provide access for the installation and maintenance of utilities. This study attempts to investigate the risk factors contributing to driver's injury severity in the different areas that constitute the formation of roadway work zones. The injury severity outcomes of a crash have a natural and discrete ordering, and therefore this study has adopted the mixed generalized ordered response probit (MGORP) model. As compared to the standard ordered response probit model (ORP), which is widely utilized in the injury severity literature, the MGORP framework has the ability to recognize not only the ordering of the injury severity categories, but also allow for the investigation of unobserved effects of risk factors, known in the literature as unobserved heterogeneity. The empirical analysis was conducted using a database that consisted of 10 years of work zone crashes. This database was available through the Highway Safety Information System (HSIS). Elasticity analysis suggests that airbag deployment, alcohol involvement, ejection, seatbelt use, and partial control of access are key factors contributing to the likelihood of severe outcomes. Additionally, the effects of several covariates were found to vary across the different work zone component areas where crashes have occurred.
UR - http://www.scopus.com/inward/record.url?scp=85067015515&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85067015515&partnerID=8YFLogxK
U2 - 10.1061/JTEPBS.0000253
DO - 10.1061/JTEPBS.0000253
M3 - Article
AN - SCOPUS:85067015515
SN - 2473-2907
VL - 145
JO - Journal of Transportation Engineering Part A: Systems
JF - Journal of Transportation Engineering Part A: Systems
IS - 8
M1 - 04019032
ER -