Results 1 to 10 of about 3,166 (257)

Three-Dimensional Stopping Sight Distance Calculation Method under High Slope Restraint [PDF]

open access: yesApplied Sciences, 2020
Sight distance is an important indicator to ensure the safety of drivers, and is also an indispensable evaluation basis in highway safety engineering.
Yonghong Yang   +3 more
doaj   +5 more sources

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   +3 more sources

Revision of Calculation of Stopping Sight Distance

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2011
Stopping Sight Distance (SSD) is a critical parameter for roadway geometric design and safety evaluation. It experienced several revisions in AASHTO Green Books (A Policy on Geometric Design of Highways and Streets) since 1940.
Jianchuan Cheng   +3 more
doaj   +4 more sources

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   +4 more sources

Analysis of Stopping Sight Distance (SSD) Parameters: A Review Study [PDF]

open access: yesProcedia Computer Science, 2022
Stopping sight distance (SSD) is one of the important elements in geometric highway design, which relies on the two key parameters, i.e., vehicle braking characteristics and drivers' reaction time. Previous studies have shown higher discrepancies in the coefficients of the SSD parameters, and therefore, making it difficult for practitioners what values
Qinaat Hussain, Wael K M Alhajyaseen
exaly   +5 more sources

A New Model of Stopping Sight Distance of Curve Braking Based on Vehicle Dynamics [PDF]

open access: yesDiscrete Dynamics in Nature and Society, 2016
Compared with straight-line braking, cornering brake has longer braking distance and poorer stability. Therefore, drivers are more prone to making mistakes. The braking process and the dynamics of vehicles in emergency situations on curves were analyzed.
Rong-xia Xia   +4 more
doaj   +3 more sources

Evaluation of 3d Coordination to Maximize Available Stopping Sight Distance in Two-Lane Rural Highways

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2014
Sight distance is one of the most important factors of road safety since it allows the driver perceiving, at real time, road characteristics and its surroundings.
Ana Tsui Moreno   +2 more
doaj   +6 more sources

Estimation of Suitable Grade Value for Stopping Sight Distance Computation on Vertical Curves

open access: yesIraqi Journal of Civil Engineering, 2008
The purpose of highway geometric design is to provide safe and economical highways. One of the important geometric design elements for safety is visibility on designed roads.
Ahmed H. Farhan
doaj   +2 more sources

Prediction of pavement water film depth and estimation of critical rainfall conditions for refined road safety management: A simulation study. [PDF]

open access: yesPLoS ONE
The development of a smart expressway ensuring all-weather safe access represents the future trajectory of transportation infrastructure. A key task in this advancement is the precise prediction of water film depth (WFD) on road surfaces.
Jinliang Xu   +5 more
doaj   +2 more sources

Reliability-based analysis of horizontal curve design by evaluating the impact of vehicle automation on roadway departure crashes and safety performance [PDF]

open access: yesHeliyon
Roadway departure (RwD) crashes are significant safety concerns, especially at horizontal curves. The design of these curves plays a crucial role in mitigating RwD crashes.
Omar Al-Sheikh   +2 more
doaj   +2 more sources

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