Results 1 to 10 of about 51,905 (117)

Intersection Sight Distance Characteristics of Turbo Roundabouts

open access: yesDesigns, 2021
A turbo roundabout uses spiral circulatory roads for effectively counteracting the problems faced in modern multilane roundabouts. First developed in 1996, the turbo roundabout has an advantage over the conventional roundabout regarding capacity and ...
Akshay Salwan   +3 more
doaj   +3 more sources

Reliability Analysis of Intersection Sight Distance at Roundabouts

open access: yesInfrastructures, 2020
This paper presents a reliability-based method for the design of intersection sight distance (ISD) at traffic roundabouts using the linear and nonlinear deceleration profiles of the entry vehicles.
Said M. Easa   +4 more
doaj   +3 more sources

An Improved Adaptive Kalman Filter Positioning Method Based on OTFS [PDF]

open access: yesSensors
To mitigate the degradation of positioning accuracy in sixth-generation mobile communication systems under dynamic line-of-sight (LOS) and non-line-of-sight (NLOS) conditions, this paper proposes an improved adaptive Kalman filter positioning method ...
Siqi Xia, Aijun Liu, Xiaohu Liang
doaj   +2 more sources

Sight distances at unsignalized intersections: a comparison of guidelines and requirements for human drivers and autonomous vehicles [PDF]

open access: yesArchives of Transport, 2021
Many traffic accidents are caused by unforeseen and unexpected events in a site that was hidden from the driver's eyes. Road design parameters determining required visibility are based on relationships formulated decades ago.
Zsófia Magyari   +3 more
doaj   +1 more source

A New Stopping Sight Distance Model and Fuzzy Reliability Analysis Comparison

open access: yesIEEE Access, 2022
Aiming at the problem that the existing stopping sight distance model is out of sync with the development of the times, this paper puts forward a new stopping sight distance model considering the fuzziness and randomness of design parameters, and deduces
Ya Chen   +3 more
doaj   +1 more source

Empirical modeling of the relationship between decision sight distance and stopping sight distance based on AASHTO [PDF]

open access: yesArchives of Transport, 2018
The paper introduces implementation of highways' stopping sight distance (SSD) and decision sight distance (DSD) based on AASHTO modeling assumptions. SSD characterizes the necessary distance for highway vehicles to stop safely in front from an obstacle.
Shy BASSAN
doaj   +1 more source

Calculating TIN-Based 3D Sight Distance and Its Evaluation on Drivers Free-Flow Speed

open access: yesShock and Vibration, 2021
Sight distance during driving may be limited by side factors such as mountain slopes or trees and buildings in horizontal curves and by the dome of the arc in vertical curves, and the night vision also can be limited in the sag vertical curves by the ...
Ali Sahaf   +2 more
doaj   +1 more source

An Analysis of Sight Distances Considering Both the Vertical and Horizontal Curves of a Tourist Bound Destination Highway in Camarines Sur: The Lagonoy-Presentacion Section [PDF]

open access: yesJournal of Soft Computing in Civil Engineering, 2018
This analyzed sight distances contemplating both vertical and horizontal curves of a tourist bound destination highway in Camarines Sur, particularly the Lagonoy to Presentacion section. The Quantum Geographic Information System (QGIS) was used. The data
Raymundo Romero
doaj   +1 more source

Elements of perfect order rate research in logistics chains [PDF]

open access: yesArchives of Transport, 2019
Perfect order rate (POR) is one of the superior measures of the logistics processes quality. POR is at the top of the hierarchy of key performance indicators (KPI) in supply chain and is considered as difficult to define and measure.
Ilona Jacyna-Gołda   +5 more
doaj   +1 more source

Traffic Sign Detection Based on Driving Sight Distance in Haze Environment

open access: yesIEEE Access, 2022
To explore the relationship between traffic sign detection performance and driving sight distance in haze environment, this paper proposed a UV correlation model among sight distance, haze grade and traffic sign detection performance.
Rong Hu   +4 more
doaj   +1 more source

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