Qatar Transportation and Traffic Safety Center

Joint replenishment model for multiple products with substitution

Maddah, Bacel; Kharbeche, Mohamed; Pokharel, Shaligram; Ghoniem, Ahmed ( Elsevier Inc. , 2016 , Article)

We extend the classical economic order quantity model to address the joint replenishment of multiple products under substitution. The proposed model optimizes ordering quantities for each product under substitution effects ...

Performance Evaluation of Vehicle Restraint Systems in the Context of Design and Installation

Tahmasseby, Shahram; Muley, Deepti; Wink, Bernd Wolfgang (2021 , Article)

Vehicle Restraint Systems (VRS), a necessary component of the road design, are widely implemented by transport authorities to protect vehicles from severe incidents, mainly colliding to the roadside as well as median ...

AERIAL ROPEWAY SYSTEM- FEASIBILITY STUDY IN DOHA, QATAR

Tahmasseby, Shahram ( Canadian Science Publishing , 2021 , Article)

Aerial ropeway systems, also called gondolas and aerial cable cars, are amongst driverless transportation modes, which are progressively drawing the attention in promoting tourism. Aerial ropeway systems have been operated ...

Travelers’ preferences regarding autonomous mobility in the State of Qatar

Alhajyaseen, Wael; Adnan, Muhammad; Abuhejleh, Abdelrahman; Onat, Nuri; Tarlochan, Faris ( Springer , 2020 , Article)

© 2020, Springer-Verlag London Ltd., part of Springer Nature. Autonomous mobility is gaining increasing attraction in the international setting that results in a growing body of literature on various aspects. Preferences ...

Modeling the Impact of Downstream Conditions on Discharging Behavior of Vehicles at Signalized Intersections Using Micro-Simulation

Zhu, Hong; Nakamura, Hideki; Alhajyaseen, Wael ( Springer , 2020 , Article)

© 2020, King Fahd University of Petroleum & Minerals. In areas where traffic demand is high and intersections are closely spaced, the drivers’ desire for quick discharge is demotivated by negative downstream conditions, ...

Introducing a multi-variate classification method: Risky driving acceptance among different heterogeneous driver sub-cultures

Chantal P.M., Timmermans; Alhajyaseen, Wael K.M.; Ross, Veerle; Nakamura, Hideki ( Elsevier , 2020 , Article)

Introduction: Heterogeneous driving populations with many different origins are likely to have various sub-cultures that comprise of drivers with shared driver characteristics, most likely with dissimilar traffic safety ...

Effect of ADHD traits in young drivers on self-reported deviant driving behaviours: An exploratory study in the Arab gulf region

Chantal, Timmermans; Alhajyaseen, Wael; Soliman, Abdrabo; Brijs, Tom; Bedair, Khaled; ... more authors ... less authors ( Elsevier , 2020 , Article)

IntroductionAttention Deficit Hyperactivity Disorder (ADHD) can be defined in two key traits (inattention and hyperactivity-impulsivity), which can effect day-to-day capabilities such as driving performance. MethodsIn this ...

Innovative countermeasures for red light running prevention at signalized intersections: A driving simulator study

Qinaat, Hussain; Alhajyaseen, Wael K.M.; Brijs, Kris; Pirdavani, Ali; Brijs, Tom ( Elsevier , 2020 , 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 ...

Optical pavement treatments and their impact on speed and lateral position at transition zones: A driving simulator study

Hussain, Qinaat; Alhajyaseen, Wael K.M.; Reinolsmann, Nora; Brijs, Kris; Pirdavani, Ali; ... more authors ... less authors ( Elsevier , 2021 , Article)

© 2020 Elsevier Ltd Transition zones are a road section where posted speed drops from higher to lower limits. Due to the sudden changes in posted speed limits and road environment, drivers usually do not adapt to the posted ...

Throughput optimization for the Robotic Cell Problem with Controllable Processing Times

Al-Salem, Mohammed; Kharbeche, Mohamed ( EDP Sciences , 2017 , Article)

In this paper, we present a MIP-based heuristic and an effective genetic algorithm for the Robotic Cell Problem with Controllable Processing Times (RCPCPT). This problem arises in modern automated manufacturing systems and ...

Seat belt and child restraint systems : ESRA2 Thematic report No. 8

Nakamura, Hideki; Alhajyaseen, Wael; Kako, Yoko; Timmermans, Chantal; Kakinuma, Toru ( International Association of Traffic and Safety Sciences (IATSS) , 2019 , Report)

ESRA (E-Survey of Road users’ Attitudes) is a joint initiative of road safety institutes, research centres, public services, and private sponsors from all over the world. The aim is to collect and analyse comparable data ...

Extraction of Vehicle Turning Trajectories at Signalized Intersections Using Convolutional Neural Networks

Abdeljaber, Osama; Younis, Adel; Alhajyaseen, Wael ( SpringerLink , 2020 , Article)

This paper aims at developing a convolutional neural network (CNN)-based tool that can automatically detect the left-turning vehicles (right-hand traffic rule) at signalized intersections and extract their trajectories ...

A vision-based zebra crossing detection method for people with visual impairments

Akbari, Younes; Hassen, Hanadi; Subramanian, Nandhini; Kunhoth, Jayakanth; Al-Maadeed, Somaya; ... more authors ... less authors ( IEEE , 2020 , Conference Paper)

Safe navigation for visually impaired is challenging without assistive technology. This paper proposes a pedestrian crossing detection approach to help visually impaired people. We introduce the use of multiple convolutional ...

Effectiveness of Speed Limit Pavement Markings at Transition Zones Along Expressways

Samson, Christian J. R.; Kahil, Fadi; Mohamed, Khalid G. M.; Hussain, Qinaat; Alhajyaseen, Wael K. M. ( IEEE , 2020 , Conference Paper)

Transition zones are usually equipped with speed limit signs only. Drivers usually miss the speed limit information provided through the roadside signs and travel faster than the posted speed limit. This driving simulator ...

Modeling Trajectories and Trajectory Variation of Turning Vehicles at Signalized Intersections

DIas, Charitha; Iryo-Asano, Miho; Abdullah, Muhammad; Oguchi, Takashi; Alhajyaseen, Wael ( Institute of Electrical and Electronics Engineers , 2020 , Article)

© 2013 IEEE. Information on the trajectories of turning vehicles at signalized intersections can be used in numerous applications, such as movement planning of autonomous vehicles, realistic representation of surrounding ...

Modeling Traffic Flows on Urban Arterials Considering the Downstream Influence

Zhu, Hong; Nakamura, Hideki; Alhajyaseen, Wael; Iryo-Asano, Miho ( SAGE Publications , 2020 , Article)

© National Academy of Sciences: Transportation Research Board 2020. Arterials are important transportation facilities, undertaking the two functions of mobility and accessibility. In the urban area, signalized intersections ...

Investigating the Efficiency and Safety of Signalized Intersections Under Mixed Flow Conditions of Autonomous and Human-Driven Vehicles

Pan, Ang; Zhang, Xin; Nakamura, Hideki; Alhajyaseen, Wael ( Springer , 2020 , Article)

© 2020, King Fahd University of Petroleum & Minerals. Field experiments of autonomous driving systems have already been started in several countries around the world. However, investigations on the performance of signalized ...