Results 21 to 30 of about 2,901 (237)

Sight distance analyses in road design process: Serbian practice

open access: yesTransport, 2016
New Serbian policies on road design introduce the concept of operating speeds. Decades ago, national policies were based on the constant design speed concept.
Dejan Gavran   +3 more
doaj   +1 more source

An Assessment of Cycling Routes in Terms of Movement and Accessibility Using the MABAC Method (Case Study: Districts 1 and 3 of Isfahan City) [PDF]

open access: yesبرنامه ریزی فضایی, 2023
The ever-increasing expansion of urbanization has caused an increase in activity density in cities and has created many problems in urban transportation.
Homayoon Nooraie   +5 more
doaj   +1 more source

Highway Stopping Sight Distance, Decision Sight Distance, and Passing Sight Distance Based on AASHTO Models

open access: yesOALib, 2020
Highway sight distance is a measure of roadway visibility, which is an important factor in the assessment of road safety. Greater visibility can provide motorists more time to avoid crashes and conflicts, facilitating safe and efficient operation.
openaire   +1 more source

Reliability-based analysis of highway geometric Elements: A systematic review

open access: yesCogent Engineering, 2022
Conventional highway design approaches have primarily focused on the use of guidelines in the design of highways. These design guidelines provide nominal safety where conservative percentile values of the design inputs are used to account for the ...
Abayomi Afolayan   +4 more
doaj   +1 more source

Reliability-Based Safety Evaluation of Headlight Sight Distance Applied to Road Sag Curve Standards

open access: yesIEEE Access, 2020
Sight distance is key to ensure safe road geometric design under all circumstances. Road design standards propose models simulating nighttime driving that contemplate the features of vehicle frontlighting systems to address the design of sag curves ...
F. Andrade-Catano   +2 more
doaj   +1 more source

Examining the feasibility of current spiral curve design controls for LiDAR‐based automated vehicles

open access: yesIET Intelligent Transport Systems, 2023
Enabling large‐scale deployment of automated vehicles (AVs) in the near future requires answering the question firstly: whether AVs could safely adapt to as‐built road geometry?
Shuyi Wang   +4 more
doaj   +1 more source

Analytical Method for 3-D Stopping Sight Distance Adequacy Investigation [PDF]

open access: yesJournal of Civil Engineering and Architecture, 2015
The adopted 2-D SSD (stopping sight distance) adequacy investigation in current design practice may lead to design deficiencies due to inaccurate calculation of the available sight distance. Although this concern has been identified by many research studies in the past, none of them suggested a comprehensive methodology to simulate from a 3-D ...
null Fotis S. Mertzanis   +4 more
openaire   +1 more source

Investigation of Rainfall Impact on Traffic Characteristics of Urban Roads [PDF]

open access: yesJES: Journal of Engineering Sciences
Adverse weather conditions such as rainfall, significantly affect road safety and traffic performance by altering surface conditions and driver behavior.
Terseer Ako   +5 more
doaj   +1 more source

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

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