Single-Vehicle Crashes on Rural Two-Lane Highways and Injury Severity: Does the Age Matter?
Publish Year: 1396
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JGTTE-3-1_001
تاریخ نمایه سازی: 14 آذر 1402
Abstract:
Single-vehicle crashes on rural two-lane highways impose a
considerable risk to road users due to their higher severity outcome
compared to other crashes on these facilities. Furthermore,
considerable variation in the severity among various age groups
(young, middle-aged, and older drivers) has been noticed,
corroborating the need for analyzing age-classified data. Crash data
from Alabama was compiled and classified based on the age group.
For each age class, a generalized ordered logit model was
developed to identify the effect of various variables on injury
severity. This model can consider ordered nature of severity as well
as provide flexibility in calculating the parameter estimates. Driver
gender, seatbelt use, damage to the vehicle, driving on county
roads, hitting a fixed object and animal, and speeding were found
to be significant in all developed models. Intoxication is a
significant factor that affects injury severity for young drivers.
Time of day also significantly affects the injury severity for older
drivers. Vehicle age and driving with invalid license were not found
to affect injury severity for older drivers, while they affected the
other age groups. It was shown that some factors have significant
effect on the injury severity for all age groups while others have
varying effect across different age groups. The results of this study
highlight the importance of considering separate injury severity
models for different age groups, specifically separating older
drivers from others, as the difference among older drivers and
others are substantial.
Keywords:
Authors
Rouholamin Mahdi Pour
PhD, Department of Civil Engineering, Auburn University, Auburn, AL, USA
Huaguo Zhou
PhD, P.E, Department of Civil Engineering, Auburn University, Auburn, AL, USA