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Motorized semi-automated prism bar technique for enhanced prismatic evaluation. [PDF]
Indian J OphthalmolSuresh G +4 more
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Accident Analysis and Prevention, 2018
An important element of highway design is ensuring that the available sight distance (ASD) on a highway meets driver needs. For instance, if the ASD at any point on a highway is less than the distance required to come to a complete stop after seeing a hazard (i.e.
Karim El-Basyouny +2 more
exaly +3 more sources
An important element of highway design is ensuring that the available sight distance (ASD) on a highway meets driver needs. For instance, if the ASD at any point on a highway is less than the distance required to come to a complete stop after seeing a hazard (i.e.
Karim El-Basyouny +2 more
exaly +3 more sources
Motorcyclist Perception Response Time in Stopping Sight Distance Situations
Safety Science, 2012One of the most effective engineering measures is the provision of an exclusive motorcycle lane that separates motorcycles from other mixed traffic to reduce traffic congestion and motorcycle crashes. Even though the existing exclusive motorcycle lanes in Malaysia reduced the incidents of motorcycle crashes with other vehicles, the design of this ...
Seyed Rasoul Davoodi +2 more
exaly +2 more sources
Assessing Stopping and Passing Sight Distance on Highways Using Mobile LiDAR Data
Journal of Computing in Civil Engineering, 2018AbstractGeometric design guides provide minimum standards that must be met to ensure the safe and efficient operation of highways.
Karim El-Basyouny, Suliman A Gargoum
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The Stopping Sight Distance Test for Freeway Based on the Operating Speed
Applied Mechanics and Materials, 2011In this paper, the stopping sight distance of passenger car based on the operating speed was regarded as guideposts, and its corresponding radius of horizontal curve and vertical curve was got according to the calculated results, and available for reference and application in the alignment design and safety evaluation for freeway.
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Stopping Sight Distance and Available Sight Distance: New Model and Reliability Analysis Comparison
Transportation Research Record: Journal of the Transportation Research Board, 2017Stopping sight distance (SSD) is an important design criterion used in the geometry of highways and streets. Design guidance implies that SSD is used to ensure safety along the roadway. This paper reviews SSD design criteria and develops an updated model to improve consistency between available sight distance and SSD criteria found
Jonathan S. Wood, Eric T. Donnell
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Reliability of sight distance at stop-control intersections
Proceedings of the Institution of Civil Engineers - Transport, 2016The American Association of State Highway and Transportation Officials presents guidelines for intersection sight distance (ISD) based on extreme values of the component design variables such as speed and time gap. The guidelines for a stopped vehicle at a stop-control intersection on a minor road assume that the component design variables are ...
Said M. Easa, Altaf Hussain
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Stopping Sight Distance and Horizontal Sight Line Offsets at Horizontal Curves
Transportation Research Record: Journal of the Transportation Research Board, 2014Criteria for the design of horizontal curves implicitly rely on design speed to produce safe and efficient designs, particularly for horizontal sight line offsets and stopping sight distances. Current design guidance provides a method for calculating minimum horizontal sight line offsets that is accurate and valid only when both driver and object are ...
Jonathan S. Wood, Eric T. Donnell
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Three-Dimensional Stop-Control Intersection Sight Distance
Transportation Research Record: Journal of the Transportation Research Board, 2006Intersection sight distance is an important design element. A stopped vehicle on the minor road needs sufficient sight distance to depart (cross, turn left, or turn right) safely, even though an approaching vehicle on the major road comes into view. Current AASHTO policy assumes that both minor and major roads are straight and intersect at right angles.
Said M. Easa, Zain A. Ali
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