Multivariate Poisson-Lognormal models for predicting peak-period crash frequency of joint on-ramp and merge segments on freeways

A Faden, M Abdel-Aty, N Mahmoud… - Transportation …, 2024 - journals.sagepub.com
Because of a growing crash occurrence in conflict areas, the ramp and merge segments on
freeways are a concern for transportation researchers and practitioners. Therefore, short …

Short-term safety performance functions by random parameters negative binomial-Lindley model for part-time shoulder use

T Hasan, M Abdel-Aty - Accident Analysis & Prevention, 2024 - Elsevier
Abstract Part-time Shoulder Use (PTSU) is a traffic management and operation strategy that
allows the use of the left or right shoulder as a travel lane, typically during the peak hours of …

Trajectory prediction for vehicle conflict identification at intersections using sequence-to-sequence recurrent neural networks

A Abdelraouf, M Abdel-Aty, Z Wang… - arXiv preprint arXiv …, 2022 - arxiv.org
Surrogate safety measures in the form of conflict indicators are indispensable components of
the proactive traffic safety toolbox. Conflict indicators can be classified into past-trajectory …

Time-specific hierarchical models for predicting crash frequency of reversible and high-occupancy vehicle lanes

J Fu, M Abdel-Aty, N Mahmoud - Accident Analysis & Prevention, 2023 - Elsevier
Abstract Time-specific Safety Performance Functions (SPFs) were proposed to achieve
accurate and dynamic crash frequency predictions. This study contributes to the literature by …

Beyond concept: The viability of exclusive lanes for zero emission vehicles on expressways

I Kim, Y Kim, J Kwon, C Lee, JJ So - Transportation Research Part D …, 2023 - Elsevier
In response to climate change issues, various measures have been implemented to
decarbonize transportation. One approach is to promote zero emission vehicles which can …

An advanced real-time crash prediction framework for combined hard shoulder running and variable speed limits system using transformer

M Abdel-Aty, T Hasan, BMTH Anik - Scientific Reports, 2024 - nature.com
One of the important applications of real-time crash prediction analysis lies in the field of
proactive traffic management, where instantaneous crash risk evaluation and dynamic …

Time-Based Safety Performance Functions of Metered Ramps and Merge Sections

A Faden, M Abdel-Aty, T Hasan… - Journal of Transportation …, 2025 - ascelibrary.org
Ramp metering (RM) is a widely used active traffic management (ATM) system on freeways
to enhance mobility. However, research on RM systems has predominantly focused on …

Analyzing the Suitability of Vehicle Telematics Data as a Surrogate Safety Measure for Short-Term Crashes

M Joshi, A Bamney, K Wang, S Zhao… - Transportation …, 2024 - journals.sagepub.com
Traffic safety analysis relies heavily on the comprehensiveness of traffic crash data.
However, crash occurrences are rare events. Researchers have sought alternative …

Development of Modified Temporal Safety Performance Function Considering Various Time Flows

Y Sung, S Kim, J Park, L Wang - Journal of Advanced …, 2024 - Wiley Online Library
Safety performance functions (SPFs) have become valuable tools for estimating the
relationships between crashes and various causal factors when constructing crash …

Full data imputation for freeway time-specific safety performance functions' estimation

J Fu, M Abdel-Aty, X Yan - Accident Analysis & Prevention, 2023 - Elsevier
Abstract Time-specific Safety Performance Functions (SPFs) were proposed to achieve
accurate and dynamic crash frequency predictions. Unfortunately, some states do not have …