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Effectiveness of Speed Limit Pavement Markings at Transition Zones Along Expressways
(
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 ...
A vision-based zebra crossing detection method for people with visual impairments
(
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 ...
Impact of the geometric field of view on drivers’ speed perception and lateral position in driving simulators
(
Elsevier
, 2020 , Conference Paper)
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. ...
Analysis of the Trajectories of Left-turning Vehicles at Signalized Intersections
(
Elsevier B.V.
, 2020 , Conference Paper)
Internationally, an annual number of more than a million fatalities are caused by road traffic crashes, with particularly signalized intersections being crash prone locations within the highway system. An accumulation of ...
Queue Discharge at Freeway On-Ramps Using Coordinated Operation of a Ramp Meter and an Upstream Traffic Signal
(
Elsevier
, 2020 , Conference Paper)
Ramp metering is an effective way of maintaining optimum traffic conditions and mitigating congestion on freeways. Several strategies for ramp metering exist in the literature. They are typically based on the freeway traffic ...
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 Paper)
"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 ...
Evaluating the Operational Impact of Left-Turn Exclusive Number of Lanes: A Case Study from Qatar
(
Qatar Univesrity Press
, 2020 , Conference Paper)
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 ...
Emerging Transit Technology: Implementing an Urban Gondola System over Al Corniche, Doha, Qatar - A Cost Estimation Study
(
Qatar Univesrity Press
, 2020 , Conference Paper)
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 ...
Safety and Operational Performance of Signalized Roundabouts: A Case Study in Doha
(
Elsevier B.V.
, 2020 , Conference Paper)
Traffic safety is one of the important challenges that urban transportation systems are facing. The common practice of assessing the safety of transportation systems starts with the collection of readily available crash ...