Results 21 to 30 of about 1,910,311 (109)

The Sight Distance Issues with Retrofitted Single-Lane HOV Facilities

open access: yesInternational Journal of Transportation Science and Technology, 2013
It is well-known that obstruction inside a highway horizontal curve will lead to impaired sight distance. Highway alignment design standards in terms of the minimum horizontal curve radius are specified to allow for adequate stopping sight distance at ...
Zhongren Wang
doaj   +1 more source

A Rural Road Accident Probability Model Based on Single-Vehicle Hazard Properties including Hazard Color and Mobility: A Driving Simulator Study

open access: yesJournal of Advanced Transportation, 2020
Road safety has recently been considered an important issue in the country. Single-vehicle accident statistics show the importance of this issue. From a safety viewpoint, drivers need to have a reasonable time window for hazard recognition and reaction ...
Sina Sheikholeslami   +2 more
doaj   +1 more source

Effects of vegetation type and horizontal curve radius on the rate of tree pruning to provide line of sight on main access roads

open access: yesJournal of Forest Science, 2014
The present investigation was carried out to assess the influence of vegetation type and horizontal curve radius on the rate of tree pruning to provide the line of sight on horizontal curves in Caspian forests of Iran. For this purpose, the DBH (diameter
M. Nasiri, M.R. Pourmajidian
doaj   +1 more source

Impact of visibility on traffic Incidents at signalized intersections –a case study in Polish cities

open access: yesArchives of Transport
In urban agglomerations, signalized intersections are common. However, in traffic management, safety-focused strategies are often sacrificed for traffic efficiency by allowing simultaneous multiple conflicting movements.
Damian Iwanowicz, Radosław Klusek
doaj   +1 more source

An Initial Investigation of the Effects of a Fully Automated Vehicle Fleet on Geometric Design

open access: yesJournal of Advanced Transportation, 2019
This paper investigates the potential changes in the geometric design elements in response to a fully autonomous vehicle fleet. When autonomous vehicles completely replace conventional vehicles, the human driver will no longer be a concern.
John Khoury, Kamar Amine, Rima Abi Saad
doaj   +1 more source

Random-Parameter Multivariate Negative Binomial Regression for Modeling Impacts of Contributing Factors on the Crash Frequency by Crash Types

open access: yesDiscrete Dynamics in Nature and Society, 2020
Highways provide the basis for safe and efficient driving. Road geometry plays a critical role in dynamic driving systems. Contributing factors such as plane, longitudinal alignment, and traffic volume, as well as drivers’ sight characteristics ...
Chenzhu Wang   +6 more
doaj   +1 more source

Use of the Safety Factor and Margin of Safety in Motorcyclist Accident Risk Management

open access: yesInternational Journal of Technology, 2018
Deceleration rate, time to collision and impact speed have been commonly employed as accident risk indicators. However, it is hard to assess the level of accident risk since these indicators have not been developed with measurable score criteria.
Don Gaspar Noesaku da Costa   +2 more
doaj   +1 more source

100 Glimpses: A Lion's Tale

open access: yes, 2023
100 Glimpses is a series of short documentaries produced by the Sight Center of Northwest Ohio. The series explores the organization's history. The Sight Center was founded in 1923 as the Toledo Society for the Blind.
Sight Center of Northwest Ohio (Toledo, Ohio)
core  

Pavement Distress, Road Safety, and Speed Limit Selection: An Integrated Mechanistic–Quantitative Approach

open access: yesFuture Transportation
Speed management plays a critical role in road safety; however, conventional speed limits are determined based on characteristics such as geometry and traffic volume.
Abeer K. Jameel, Zaineb Mossa Jasim
doaj   +1 more source

100 Glimpses : Lyle Kirk

open access: yes, 2023
100 Glimpses is a series of short documentaries produced by the Sight Center of Northwest Ohio. The series explores the organization's history. The Sight Center was founded in 1923 as the Toledo Society for the Blind.
Sight Center of Northwest Ohio (Toledo, Ohio)
core  

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