Browsing by Author "Alhajyaseen, Wael K."
Now showing items 1-20 of 21
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Aberrant driving behaviors as mediators in the relationship between driving anger patterns and crashes among taxi drivers: An investigation in a complex cultural context
( Taylor & Francis , 2023 , Article)Objective: Taxis have become an integrated component of Qatar’s urban transportation network due to their convenience, comfort, and flexibility. Qatar has seen an uptick in the demand for professional taxi drivers. Most ... -
Analysis of gap parameters for the estimation of single lane roundabouts' capacity in the State of Qatar
( Elsevier B.V. , 2021 , Conference)Entry capacity is an important parameter for evaluating the roundabout performance. In general, entry capacity is influenced by three gap parameters: critical gap, follow-up time and minimum headway of circulating vehicles. ... -
Analysis of Stopping Sight Distance (SSD) Parameters: A Review Study
( Elsevier B.V. , 2022 , Article)Stopping sight distance (SSD) is one of the important elements in geometric highway design, which relies on the two key parameters, i.e., vehicle braking characteristics and drivers' reaction time. Previous studies have ... -
Application of Unsupervised Machine Learning Classification for the Analysis of Driver Behavior in Work Zones in the State of Qatar
( Elsevier , 2022 , Article)Work zone areas are commonly known as crash-prone areas. Thus, they usually receive high priority by road operators as drivers and workers have higher chances of being involved in road crashes. The paper aims to investigate ... -
Assessment of different pedestrian communication strategies for improving driver behavior at marked crosswalks on free channelized right turns
( Elsevier , 2023 , Article)Introduction: Previous studies have indicated low driver yielding rates to pedestrians in various countries. This study analyzed four different strategies to improve driver yielding rates at marked crosswalks on channelized ... -
Autonomous vehicles between anticipation and apprehension: Investigations through safety and security perceptions
( Elsevier Ltd , 2021 , Article)Due to the ongoing enormous infrastructural developments and car ownership culture in Qatar, it could be one of those countries to introduce Autonomous Vehicles (AV) technology at the early stages. Therefore, this study ... -
Can automated driving prevent crashes with distracted Pedestrians? An exploration of motion planning at unsignalized Mid-block crosswalks
( Elsevier , 2022 , Article)Pedestrian distraction may provoke severe difficulties in automated vehicle (AV) control, which may significantly affect the safety performance of AVs, especially at unsignalized mid-block crosswalks (UMCs). However, there ... -
Do detection-based warning strategies improve vehicle yielding behavior at uncontrolled midblock crosswalks?
( Elsevier Ltd , 2021 , Article)Pedestrians being the most vulnerable road users account for a large proportion of injuries and fatalities from road traffic crashes. Pedestrians are involved in around one-third of the whole fatalities coming from the ... -
Driving behavior classification at signalized intersections using vehicle kinematics: Application of unsupervised machine learning
( Taylor & Francis , 2022 , Article)Driving behavior is considered as a unique driving habit of each driver and has a significant impact on road safety. This study proposed a novel data-driven Machine Learning framework that can classify driving behavior at ... -
Driving simulation sickness and the sense of presence: Correlation and contributing factors
( Elsevier Ltd , 2021 , Article)Driving simulators are useful and effective tools for conducting studies in the field of traffic safety. Simulation sickness (SS) and the sense of presence (SP) are two well-known factors that could affect the results of ... -
Examining the role of road safety audits worldwide: exploring road safety expert’s opinions
( Taylor & Francis , 2022 , Article)Road safety audit (RSA) is a method used to proactively identify safety risks in road projects from planning, design, and construction stages. The effectiveness of the implementation of RSAs varies across the globe. This ... -
The impact of rural expressway environments: drivers’ attention allocation to variable message signs
( Taylor & Francis , 2022 , Article)Variable Message Signs (VMS) are implemented at varying locations of the expressway. In this study, we compared the drivers’ attention allocation to a ‘drive safely’ message on several VMS gantries that were located at six ... -
Improved driver behaviour at bus stops on local roads: Comparison of different treatments
( Elsevier , 2022 , Article)Every day, millions of students use school bus as a mean of transportation to and from schools. Nevertheless, most of the school bus related crashes occur at or near bus stops. The overtaking of stopped school buses during ... -
Improved traffic safety at work zones through animation-based variable message signs
( Elsevier Ltd , 2021 , Article)Work zones are established to provide a safe environment for all road users and road workers. However, based on the statistics, they can be considered as crash prone zones due to changes in the road alignments and the ... -
Innovative countermeasures for red light running prevention at signalized intersections: A driving simulator study
( Elsevier , 2019 , Article)The change interval, which includes the yellow and all-red times, plays a crucial role in the safety and operation of signalized intersections. During this interval, drivers not only need to decide to stop or go but also ... -
Interactions between autonomous vehicles and pedestrians at unsignalized mid-block crosswalks considering occlusions by opposing vehicles
( Elsevier Ltd , 2021 , Article)Visibility can be identified as one of the critical determinants for the safety performance of autonomous vehicles (AVs) on unsignalized mid-block crosswalks (UMC), which may be significantly influenced by build-up environment ... -
Modelling speed behaviour in rural highways: Safety analysis of driving under adverse road-weather conditions
( PLOS , 2021 , Article)This study proposes a methodical approach to model desired speed distributions under different road-weather and traffic conditions followed by identification of road-weather conditions with potentially higher safety risks ... -
A novel agent-based framework for evaluating pedestrian safety at unsignalized mid-block crosswalks
( Elsevier Ltd , 2021 , Article)A critical safety problem in road networks is the conflicts on unsignalized crosswalks. Thus, a proactive approach to assess pedestrian safety performance is required. Simulating the microscopic road user behavior in a ... -
Road safety status during COVID-19 pandemic: exploring public and road safety expert’s opinions
( Taylor & Francis , 2022 , Article)The main objective of this study is to investigate the status of traffic safety and the public perception of traffic safety during the during COVID-19 pandemic. Three different data sets are used in this study: road crash ... -
Safer pedestrian crossing facilities on low-speed roads: Comparison of innovative treatments
( Elsevier , 2022 , Article)Despite the international efforts to improve pedestrian safety in different regions of the world, pedestrian fatalities still account for around one-third of annual road traffic deaths. Residential areas are commonly ...
