Real-time crash prediction for a long low-traffic volume corridor using corrected-impurity importance and semi-parametric generalized additive model

A Khoda Bakhshi, MM Ahmed - Journal of transportation safety & …, 2022‏ - Taylor & Francis
Real-time risk assessment studies have investigated a limited length of corridors. However,
the necessity of assessing the safety performance of Connected Vehicles (CVs) requires …

The safety performance of connected vehicles on slippery horizontal curves through enhancing truck drivers' situational awareness: A driving simulator experiment

AK Bakhshi, SM Gaweesh, MM Ahmed - Transportation research part F …, 2021‏ - Elsevier
Although drivers can adequately adjust their operating speed according to the road
curvature, they show a lack of recognition regarding the pavement friction conditions. In this …

Practical advantage of crossed random intercepts under Bayesian hierarchical modeling to tackle unobserved heterogeneity in clustering critical versus non-critical …

AK Bakhshi, MM Ahmed - Accident Analysis & Prevention, 2021‏ - Elsevier
Traditional hierarchical modeling has been proposed to account for unobserved
heterogeneity in the crash analysis. Previous studies investigated the grou** of individual …

Impact of variable speed limit in a connected vehicle environment on truck driver behavior under adverse weather conditions: driving simulator study

G Yang, MM Ahmed… - Transportation research …, 2019‏ - journals.sagepub.com
In 2015, the US Department of Transportation (US DOT) selected Wyoming as one of three
sites to develop, test, and deploy a suite of connected vehicle (CV) applications on a 402-mi …

Exploration of hazardous material truck crashes on Wyoming's interstate roads using a novel Hamiltonian Monte Carlo Markov Chain Bayesian inference

IU Ahmed, SM Gaweesh… - Transportation research …, 2020‏ - journals.sagepub.com
Crash severity of a hazardous material (HAZMAT) transporting truck increases manyfold
compared with normal truck crash because of the possible exposure to dangerous …

Connected vehicle real-time traveler information messages for freeway speed harmonization under adverse weather conditions: Trajectory level analysis using driving …

G Yang, M Ahmed, S Gaweesh, E Adomah - Accident Analysis & Prevention, 2020‏ - Elsevier
This paper employed a high-fidelity driving simulator to investigate the impacts of the
Wyoming Department of Transportation (WYDOT) Connected Vehicle (CV) Pilot's Traveler …

Safety performance assessment of connected vehicles in mitigating the risk of secondary crashes: A driving simulator study

SM Gaweesh, A Khoda Bakhshi… - Transportation …, 2021‏ - journals.sagepub.com
Traffic crashes can be divided into primary and secondary crashes. Secondary crashes
occur as a consequence of primary crashes within their spatiotemporal distances …

[HTML][HTML] Evaluating the impact of traffic violations on crash injury severity on Wyoming interstates: An investigation with a random parameters model with heterogeneity …

A Alrejjal, M Moomen, K Ksaibati - Journal of traffic and transportation …, 2022‏ - Elsevier
This study investigated the impact of traffic violations on crash injury severity on Wyoming's
interstate highways. A random parameters multinomial logit (MNL) model with heterogeneity …

Investigating the relation between instantaneous driving decisions and safety critical events in naturalistic driving environment

ZH Khattak, MD Fontaine, W Li, AJ Khattak… - Accident Analysis & …, 2021‏ - Elsevier
The availability of large-scale naturalistic driving data provides enormous opportunities for
studying relationships between instantaneous driving decisions prior to involvement in …

[HTML][HTML] The role of driver head pose dynamics and instantaneous driving in safety critical events: application of computer vision in naturalistic driving

ZH Khattak, W Li, T Karnowski, AJ Khattak - Accident Analysis & Prevention, 2024‏ - Elsevier
This paper investigates the role of driver behavior especially head pose dynamics in safety–
critical events (SCEs). Using a large dataset collected in a naturalistic driving study, this …