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السجلات المعروضة 132 -- 151 من 252
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Investigating the behavior of railroad ballast in a box test under sinusoidal & simulated train loading
( National Technical University of Athens , 2019 , Conference Paper)The use of railway transportation systems has been increased throughout the years. Conventional ballasted tracks have been widely used in many countries around the world. Ballast material is the basic element in ballasted ... -
Investigating the Efficiency and Safety of Signalized Intersections Under Mixed Flow Conditions of Autonomous and Human-Driven Vehicles
( 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 ... -
Investigating the impact of a novel active gap metering signalization strategy on driver behavior at highway merging sections
( Elsevier Ltd , 2021 , Article)A safe headway to the lead vehicle is important to reduce conflicts with merging vehicles from highway on-ramps. Previous research has outlined the advantage of gap metering strategies to yield sufficient space to merging ... -
Investigating the impact of dynamic merge control strategies on driving behavior on rural and urban expressways – A driving simulator study
( Elsevier Ltd , 2019 , Article)Harsh decelerations and abrupt lane changes of drivers on the outer expressway lane in response to merging platoon vehicles from on-ramps increase the crash- and congestion risk on expressways. Several merge control ... -
Investigating the impact of innovative treatments on driving behavior at school bus stops: A driving simulator study
( Qatar University Press , 2021 , Poster)The illegal overtaking/crossing of stopped school buses has been identified as one of the leading causes of students' injuries and fatalities. The likelihood of students in getting involved in a school bus-related crash ... -
Investigating the Impacts of Graphical Route Information Panel Layouts on Drivers’ Comprehension and Response Time
( Springer Verlag , 2019 , Article)Graphical route information panels (GRIPs) are an alternative to conventional text-based variable message signs to address different traveler information needs. Since drivers are traveling at higher speeds on the motorways, ... -
Investigation of factors affecting turn signal usage at modern roundabouts in State of Qatar
( Informa UK Limited - Taylor & Francis , 2023 , Article)Drivers are expected to use turn signals to indicate other drivers of their intentions of taking turns, lane changing, merging or diverging indicating safe driving behaviour. This study investigated the rates of turn signal ... -
Joint replenishment model for multiple products with substitution
( 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 ... -
Lane-based analysis of the saturation flow rate considering traffic composition
( Informa UK Limited - Taylor & Francis , 2023 , Article)Saturation flow rate (SFR) is an essential metric for estimating the capacities of signalized intersections. Many factors, including traffic composition, configuration and geometry of the intersection, and driver behavior, ... -
Leveraging Stakeholder Meeting and Stated Preferences to Design Optimal Mobility-as-a-Service Subscription Bundles
( Elsevier , 2024 , Conference Paper)MaaS (Mobility-as-a-Service) emerges as an innovative solution to urban transport challenges, offering a unified, user-focused platform that combines various modes of transport. Implementing TDM (Travel Demand Management) ... -
Leveraging Stakeholder Meeting and Stated Preferences to Design Optimal Mobility-as-a-Service Subscription Bundles
( Elsevier , 2024 , Conference Paper)MaaS (Mobility-as-a-Service) emerges as an innovative solution to urban transport challenges, offering a unified, user-focused platform that combines various modes of transport. Implementing TDM (Travel Demand Management) ... -
Life cycle sustainability assessment of autonomous heavy-duty trucks
( Wiley , 2020 , Article)Connected and automated vehicles (CAVs) are emerging technologies expected to bring important environmental, social, and economic improvements in transportation systems. Given their implications in terms of air quality and ... -
Life cycle sustainability assessment of emerging mobility technologies: Perspective, challenges, and future directions
( Edward Elgar Publishing Ltd. , 2024 , Book Chapter)Emerging mobility technologies come with uncertainties in terms of their social, economic, and environmental impacts. Considering the potential impacts of emerging transportation systems, life cycle sustainability assessment ... -
Life cycle sustainability assessment of sport utility vehicles: The case for Qatar
( Springer Verlag , 2020 , Article)Electric vehicle technologies are attractive alternatives to traditional vehicles towards achieving sustainable transportation. The adoption of these technologies has a great potential in reducing road transportation ... -
Machine Learning Approach to Predict Metro Ridership based on Land Use Densities
( Qatar University Press , 2021 , Poster)Predicting metro ridership is an essential requirement for efficient metro operation and management. The dependence of metro ridership on the land use densities entails a need for an accurate predictive model. To this end, ... -
Magnetorheological damper with external excitation for more efficient control of vehicles? dynamics
( SAGE Publications Ltd , 2018 , Article)This article presents a new concept design for magnetorheological dampers, where the excitation circuit and magnetic field are applied from outside the magnetorheological chamber. This magnetorheological damper was designed ... -
Material footprint of electric vehicles: A multiregional life cycle assessment
( Elsevier , 2019 , Article)Most of the global multiregional studies have looked at material footprint (MF) of either a nation or a region. A product-specific MF analysis, particularly when it comes to Alternative Fuel Vehicles (AFVs), carried out ... -
Measuring sustainability, resilience and livability performance of European smart cities: A novel fuzzy expert-based multi-criteria decision support model
( Elsevier Ltd , 2023 , Article)Cities of the 21st century are buffeted with challenges, leaving potentially serious consequences on the future of urban living. Smartening development in cities has reinvented hopes of melting down predicaments in the ... -
A mini review on percent time-spent-following (PTSF) as the service measure for two-lane highways
( Komunitas Ilmuwan dan Profesional Muslim Indonesia , 2018 , Article)Percent Time Spent Following (PTSF) is used by the Highway Capacity Manual (HCM) as one of the service measures to assess the level-of-service of two-lane highways since the 2000 edition. But, the problem facing to estimate ... -
A Model-Based and Resource-Aware Testing Framework for Parking System Payment using Blockchain
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference Paper)In most cities, the availability of parking is a major concern. The misuse of parking spots as drivers park for longer than permitted periods cause more delays, inconvenience to others, and even parking tickets. Moreover, ...