Results 21 to 30 of about 1,835,014 (207)

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

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   +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

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   +1 more source

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

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   +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

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   +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

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