Qatar Transportation and Traffic Safety Center: Recent submissions
Now showing items 161-180 of 252
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Modeling Trajectories and Trajectory Variation of Turning Vehicles at Signalized Intersections
( 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
( 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
( 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 ... -
Effect of U-turns and heavy vehicles on the saturation flow rates of left-turn lanes at signalized intersections
( MDPI , 2020 , Article)© 2020 by the authors. The Saturation Flow Rate (SFR) is a primary measure that can be used when estimating intersection capacity. Further, the efficiency of signal control parameters also depends on the accuracy of assumed ... -
Travelers’ preferences regarding autonomous mobility in the State of Qatar
( Springer , 2021 , Article)Autonomous mobility is gaining increasing attraction in the international setting that results in a growing body of literature on various aspects. Preferences regarding the use of autonomous vehicles as an alternative ... -
Energy absorption capabilities of complex thin walled structures
( Institute of Physics Publishing , 2017 , Conference)Thin walled structures have been used in the area of energy absorption during an event of a crash. A lot of work has been done on tubular structures. Due to limitation of manufacturing process, complex geometries were ... -
Temporal variation in walking behavior: An empirical study
( Elsevier Ltd , 2017 , Article)This study provides a baseline for understanding the variation in walking behavior with respect to seasonal conditions in a hot weather country in the Arabian Gulf region. A busy neighborhood with different land-use patterns ... -
Damping and vibration response of viscoelastic smart sandwich plate reinforced with non-uniform Graphene platelet with magnetorheological fluid core
( Techno Press , 2019 , Article)This study considers the instability behavior of sandwich plates considering magnetorheological (MR) fluid core and piezoelectric reinforced facesheets. As facesheets at the top and bottom of structure have piezoelectric ... -
A New Framework for Addressing High-level Decisions Related to Sustainable Transportation Development
( Taylor and Francis Ltd. , 2019 , Article)Stakeholders in the transportation industry have been concerned with sustainability. However, transportation decision makers have had difficulty in incorporating sustainability into transportation infrastructure decisions ... -
Using the theory of planned behavior to predict the use of an upcoming public transportation service in Qatar
( Elsevier Ltd , 2019 , Article)Public transportation systems play a major role in accommodating public travel needs. To accommodate the need for public transportation in Qatar, a metro network is currently under construction. However, commuters have ... -
Drivers' perceptions of smartphone applications for real-time route planning and distracted driving prevention
( Hindawi Limited , 2019 , Article)Given the increasing importance and availability of traffic-related smartphone applications, understanding their potential use is vital, especially in developing countries. This research explores motorist perceptions of ... -
Modelling trends in road crash frequency in Qatar State
( Inderscience Enterprises Ltd. , 2019 , Article)The data-based regression models are widely popular in modelling the relationship between the crash frequencies and contributing factors. However, one common problem usually associated with the classical regression models ... -
Modeling pedestrian gap acceptance behavior at a six-lane urban road
( Taylor and Francis Inc. , 2019 , Article)The illegal crossing behavior of pedestrians at unmarked mid-block sections is unsafe, risky, and increase the potential of severe conflicts and crashes, especially in the case of multilane roads. This paper investigates ... -
Geomechanical Modelling of Railroad Ballast: A Review
( Springer , 2019 , Article)Traditional ballasted tracks have been used intensively around the world with ballast as the main material for tracks. Ballast has a significant contribution to the track alignment, stability and sustainability. After ... -
Investigating the behavior of railroad ballast in a box test under sinusoidal & simulated train loading
( National Technical University of Athens , 2019 , Conference)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 ... -
Assessing sidewalk and corridorwalkability in developing countries
( MDPI AG , 2019 , Article)Finding a simple and less expensive method to assess and improve sidewalk and corridor conditions in developing countries is essential in order to motivate more people to walk. This study aimed to design and test a method ... -
Evaluating the Operational Impact of Left-Turn Exclusive Number of Lanes: A Case Study from Qatar
( Qatar Univesrity Press , 2020 , Conference)Left-turning movements can significantly reduce the overall capacity of signalized intersections due to the queueing built up. Intersections with heavy left-turning volumes tend to use multiple lanes to accommodate left-turn ... -
Application of Vehicle Restraint Systems (VRSs) in the State of Qatar: A Case Study from Northern Roads
( Qatar Univesrity Press , 2020 , Conference)Recent developments within Infrastructural Road Safety and especially in the Sector of Vehicle Restraint Systems (VRS) have enabled Transport Authorities to significantly reduce road fatalities and severe injuries. ... -
Crowd Dynamics, Management and Control at Tourist Attractions during Special Events: A Case Study at Souq Waqif Using Pedestride® Crowd Simulation Tool
( Qatar Univesrity Press , 2020 , Conference)"Large crowds can be expected at famous tourist attractions, e.g., Souq Waqif, during special events such as the FIFA World Cup 2022. A comprehensive understanding of crowd dynamics is extremely important in order to ... -
Emerging Transit Technology: Implementing an Urban Gondola System over Al Corniche, Doha, Qatar - A Cost Estimation Study
( Qatar Univesrity Press , 2020 , Conference)Urban gondolas are a type of driverless transit vehicles, which are increasingly drawing the attention as a viable mass transit alternative in urban environments and touristic areas. The system is distinctive with high ...
