Unobserved heterogeneity and temporal instability in the analysis of work-zone crash-injury severities

M Islam, N Alnawmasi, F Mannering - Analytic methods in accident …, 2020 - Elsevier
… in work-zone crashes changes over time, could potentially be of long-term value in improving
work zone safety. However, the assessment of temporal instability in work-zone crash …

Identifying temporal instability in factors causing work zone crash occurrences using fast causal inference

Z Zhang, B Akinci, S Qian - Computing in Civil Engineering 2021, 2022 - ascelibrary.org
… ), which is referred as temporal instability. So far, this phenomenon has … work zone crashes.
This paper focuses on investigating possible temporal instability in factors causing work zone

Analysis of injury severity of work zone crashes on rural and urban work zones: accounting for out-of-sample prediction and temporal instability

R Rangaswamy, N Alnawmasi, Y Zhang - Accident Analysis & Prevention, 2024 - Elsevier
… as speed limits, work zone type, and traffic volume affecting the work zone injury severities
… urban work zone areas. However, despite this difference, rural and urban work zones share …

… to improper driving actions in single-vehicle work zone crashes: A mixed logit analysis considering heterogeneity in means and variances, and temporal instability

R Rangaswamy, N Alnawmasi, Z Wang… - … of Transportation Safety …, 2024 - Taylor & Francis
Full article: Exploring contributing factors to improper driving actions in single-vehicle work
zone crashes: A mixed logit analysis considering heterogeneity in means and variances, and …

Analyzing the time-varying patterns of contributing factors in work zone-related crashes

S Das, A Dutta, R Tamakloe… - Journal of Transportation …, 2024 - Taylor & Francis
… for the existence of yearly temporal instability in work zone crashes using random … work
zones are likely to differ from year to year. Given the existence of temporal instability in work zone

Temporal instability and age differences of determinants affecting injury severities in nighttime crashes

X Yan, J He, C Zhang, C Wang, Y Ye, P Qin - Analytic methods in accident …, 2023 - Elsevier
… This paper revealed temporal instabilitywork zone rear-end crashes that involve young
drivers (<25) and middle-aged drivers (25–60) resulted in less severe injuries. 12,477 work zone

From the past to the future: Modeling the temporal instability of safety performance functions

X Fu, J Liu, S Jones, T Barnett, AJ Khattak - Accident Analysis & Prevention, 2022 - Elsevier
temporal instability of safety performance correlates. This framework integrates: (1) the temporal
modeling that focuses on revealing temporal … The temporal modeling approach is used …

A temporal instability analysis of environmental factors affecting accident occurrences during snow events: The random parameters hazard-based duration model with …

J Pang, A Krathaus, I Benedyk, SS Ahmed… - Analytic methods in …, 2022 - Elsevier
… Since statistically significant temporal instability was identified (see Table 2), separate
year-specific models are estimated. The estimation results for each analysis year are presented in …

Temporal instability assessment of injury severities of motor vehicle drivers at give-way controlled unsignalized intersections: A random parameters approach with …

H Zubaidi, I Obaid, A Alnedawi, S Das… - Accident Analysis & …, 2021 - Elsevier
… By taking into account temporal stability and unobserved heterogeneity, this study … Log-likelihood
ratio tests revealed that there is a significant temporal instability in the four years of …

A systematic unified approach for addressing temporal instability in road safety analysis

KR Shabab, T Bhowmik, MH Zaki, N Eluru - Analytic Methods in Accident …, 2024 - Elsevier
temporal instability. The proposed approach entails carefully creating independent variables
that allow us to measure parameter slope changes over time and can be easily integrated …