Results 1 to 10 of about 575 (202)

Determining Factors Influencing Operating Speeds on Road Tangents

open access: yesApplied Sciences
Road traffic accidents remain a critical global issue with approximately 1.19 million fatalities each year, on which excessive and inappropriate speeds contribute significantly.
Juraj Leonard Vertlberg   +3 more
doaj   +4 more sources

Predicting Operating Speeds of Passenger Cars on Single-Carriageway Road Tangents

open access: yesInfrastructures
This research addresses the challenge of predicting operating vehicles’ speeds (V85) on single-carriageway road tangents. While most previous models rely on preceding segment speeds or focus on curves, this research develops an independent prediction ...
Juraj Leonard Vertlberg   +3 more
doaj   +4 more sources

Predicting Operating Speeds of Passenger Cars on Dual–Carriageway Road Tangents

open access: yesPromet (Zagreb)
This research develops multiple linear regression models for predicting operating speeds (V85) of passenger cars on dual–carriageway road tangents in Croatia, separately for the right (driving) and left (overtaking) lanes.
Juraj Leonard VERTLBERG   +3 more
doaj   +6 more sources

ROCA - An ArcGIS toolbox for road alignment identification and horizontal curve radii computation.

open access: yesPLoS ONE, 2018
We present the ROCA (ROad Curvature Analyst) software, in the form of an ESRI ArcGIS Toolbox, intended for vector line data processing. The software segments road network data into tangents and horizontal curves.
Michal Bíl   +3 more
doaj   +2 more sources

IMPACT OF ROAD ALIGNMENT ON FUEL CONSUMPTION AND GAS EMISSIONS – EXPERIMENTAL AND ANALYTICAL RESEARCH

open access: yesAdvances in Civil and Architectural Engineering, 2023
This research analysed the impact of road alignment on the fuel consumption and gas emissions of a vehicle driven at a free-flow speed by an 85th percentile driver.
Dražen Cvitanić   +2 more
doaj   +1 more source

Operating speed models for tangent segments on urban roads

open access: yesTransportation Research Record: Journal of the Transportation Research Board, 2017
Information about operating speeds is essential to design better roads, model traffic emissions, ensure design consistency while maintaining efficient and safe operations on our roads. Therefore, understanding how different factors affect operating speeds and developing operating speed prediction models is a critical research issue.
Avi Thiessen   +2 more
openaire   +3 more sources

Construction of a mathematical model of vehicles tangent collision during reconstruction of the circumstances of a road accident

open access: yesEastern-European Journal of Enterprise Technologies, 2022
This paper considers the task to clarify the circumstances of a traffic accident (TA) involving two vehicles as a result of their lateral tangential collision at low angles. The aim of the study is to construct a mathematical model of a tangential collision of vehicles for the reconstruction of TA circumstances.
Oleksii Saraiev   +4 more
openaire   +4 more sources

Modeling Acceleration and Deceleration Rates for Two-Lane Rural Highways Using Global Positioning System Data

open access: yesJournal of Advanced Transportation, 2021
Several past studies developed acceleration/deceleration rate models as a function of a single explanatory variable. Most of them were spot speed studies with speeds measured at specific locations on curves (usually midpoint of the curve) and tangents to
Vinayak Malaghan   +2 more
doaj   +1 more source

Speed Factors on Low-Volume Roads for Horizontal Curves and Tangents

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2010
Many studies on driver speed behavior are found in the scientific literature today, and various researchers have addressed roadway alignment consistency for travel safety in context with current operating speeds. Experimental analysis was conducted on low-volume roads in Southern Italy without spiral transition curves between geometric tangent and ...
DELL'ACQUA, GIANLUCA, RUSSO, FRANCESCA
openaire   +7 more sources

Operating speed as a key factor in studying the driver behaviour in a rural context

open access: yesTransport, 2016
The research aims to explore the effects of geometric road features on driver speed behaviour in order to identify unsafe road segments where high reductions in speed between successive road elements occur.
Francesca Russo   +2 more
doaj   +1 more source

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