Traffic Safety: المرسلات الحديثة
السجلات المعروضة 101 -- 120 من 163
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Seat belt and child restraint systems : ESRA2 Thematic report No. 8
( 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
( 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
( IEEE , 2020 , Conference)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
( IEEE , 2020 , Conference)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
( 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 ... -
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 ... -
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 ... -
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 ... -
Empirical evaluation of drivers’ start-up behavior at signalized intersection using driving simulator
( Elsevier , 2020 , Article)Start-up behavior at signalized intersection mainly depends on perception reaction time of drivers to the green phase. This study investigated the start-up behavior at signalized intersections by considering reaction time, ... -
Dynamic travel information strategies in advance traveler information systems and their effect on route choices along highways
( Elsevier , 2020 , Article)Advance Traveler Information Systems (ATIS) inform drivers about traffic incidences and expected travel times/ delays en-route. An online computer study was conducted in Qatar to investigate drivers' willingness ... -
Impact of the geometric field of view on drivers’ speed perception and lateral position in driving simulators
( Elsevier , 2020 , Conference)Driving simulators have become an effective tool in road safety research. In recent years, the validity of simulators raised debates concerning the extant to which driving in the simulator resembles driving in the reality. ... -
The State of Qatar and the United Arab Emirates
( Elsevier , 2019 , Article)This chapter discusses the principles of road traffic signal control in the State of Qatar and the United Arab Emirate (UAE). In the first section, traffic control standards used in both countries are presented with a focus ... -
Traffic safety research in the 15th world conference on transport research
( Taylor & Francis , 2019 , Conference)This special issue presents selected papers submitted to the 15th World Conference in Transportation Research WCTR2019, which was held in IIT Mumbai between 26th & 29th of May 2019, under the Special Interest Group ... -
Modeling the Impact of Downstream Conditions on Discharging Behavior of Vehicles at Signalized Intersections Using Micro-Simulation
( Springer , 2020 , Article)In areas where traffic demand is high and intersections are closely spaced, the drivers’ desire for quick discharge is demotivated by negative downstream conditions, such as long queues and poorly coordinated traffic ...
