Results 1 to 10 of about 1,270 (146)

Impact of urban road characteristics on vehicle speed: Insights from Brescia, Italy [PDF]

open access: yesHeliyon
In managing road infrastructures, a key benchmark is the 85th percentile of vehicle speeds (V85). While V85 can be derived from spot speed samples, these are often lacking on each urban road.
Stefano Raccagni   +2 more
doaj   +2 more sources

Assessment of dose‐volume histogram statistics using three‐dimensional conformal techniques in breast cancer adjuvant radiotherapy treatment

open access: yesPrecision Radiation Oncology, 2022
Objective Breast cancer (BC) is first of the top 10 malignancies in Iraq. Dose‐volume histograms (DVHs) are most commonly used as a plan evaluation tool.
Aula Fadhil Alwan   +6 more
doaj   +2 more sources

Human tryptophanyl-tRNA synthetase is switched to a tRNA-dependent mode for tryptophan activation by mutations at V85 and I311 [PDF]

open access: yesNucleic Acids Research, 2007
For most aminoacyl-tRNA synthetases (aaRS), their cognate tRNA is not obligatory to catalyze amino acid activation, with the exception of four class I (aaRS): arginyl-tRNA synthetase, glutamyl-tRNA synthetase, glutaminyl-tRNA synthetase and class I lysyl-tRNA synthetase.
Hong Xue, Li-Tao Guo
exaly   +4 more sources

The Most Influential Variables in the Determination of V85 Speed

open access: yesProcedia, Social and Behavioral Sciences, 2012
AbstractThis article aims to identify the variables inside the road context that have a greater impact on determining the 85th percentile speed (V85). The methodology introduced in this paper detects at first the real driving scenario through the survey of many variables in order to direct attention to the important ones.
Orazio Pellegrino
exaly   +4 more sources

Safety Effectiveness Evaluation of Raised Pedestrian Crossings in Ho Chi Minh City [PDF]

open access: yesJournal of Road Safety, 2021
Traffic crashes are one of the immediate and long-term serious problems all over the world including Vietnam. Speed is one of the direct causes of a crash.
Vuong Tran quang
doaj   +2 more sources

Estimating operating speed for county road segments – Evidence from Italy

open access: yesInternational Journal of Transportation Science and Technology, 2023
Vehicle operating speed is a crucial factor for road safety, as it strictly affects occurrence and severity of crashes. Usually, 85th percentile of the operating speed distributions (i.e., V85) in free-flow traffic condition is widely accepted as a base ...
Valentina Martinelli   +4 more
doaj   +1 more source

Influence of the longitudinal inclination on the speed on highways [PDF]

open access: yesE3S Web of Conferences, 2021
The main objective of the present paper is to investigate the influence of the longitudinal inclination of grades on the speed behavior on highways. For assessing this dependence, all uphill and downhill highway sections were considered separately in the
Hristov Borislav
doaj   +1 more source

ANALYSIS OF Nb – Ni AND V – Ni BASED MEMBRANE CHARACTERISTICS

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
To obtain ultrapure hydrogen by membrane technology, instead of expensive membranes made of Pd alloys, cheaper ones based on metals (Nb-Ni) and (V-Ni) are considered.
R.M. Belyakova   +2 more
doaj   +1 more source

Analysis of Children’s Traffic Behaviour at Signalized Crosswalks as a Precondition for Safe Children Routes Design: A Case Study from Croatia

open access: yesJournal of Advanced Transportation, 2021
Children pedestrians represent road users with some specifics because of which it is important to study and take into account their traffic behaviour when traffic infrastructure is designed.
Aleksandra Deluka-Tibljaš   +2 more
doaj   +1 more source

Application of the speed prediction model (V85) (V85) in the design of freeway interchanges

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Abstract The design of freeway interchanges is performed on the basis of technical and economic comparison of options for a large number of indicators. Design decisions depend on a large number of factors: the class of intersecting streets and roads, the level of service, traffic intensity, the estimated speed at the ramps, terrain ...
R M Jafarov, V P Zaluga
openaire   +1 more source

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