Results 11 to 20 of about 575 (202)

Quantifying the Effect of Present, Past and Oncoming Alignment on the Operating Speeds of a Two-Lane Rural Road

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2012
In the last decades several studies were conducted in order to develop operating speed prediction models for two-lane rural roads. Many factors were found to affect the operating speed, such as radius of horizontal curve or curvature changes rate, grade,
Filippo Giammaria Praticò   +1 more
doaj   +1 more source

Impact of Horizontal Curves and Percentage of Heavy Vehicles on Right Lane Capacity at Multi-lane Highways

open access: yesPromet (Zagreb), 2017
In the present research, the influence of road geometric properties and traffic characteristics on the right lane capacity value is explored for horizontal curves.
Ahmed Mohamed Semeida
doaj   +1 more source

Geometric and Operational Features of Horizontal Curves with Specific Regard to Skidding Proneness

open access: yesInfrastructures, 2019
(1) Run-off-road (ROR) crashes are a crucial issue worldwide, resulting in a disproportionate number of traffic deaths. In safety research, macro-level analysis on large datasets is usually conducted by linking explanatory variables to ROR crash ...
Paolo Intini   +3 more
doaj   +1 more source

Experimental relationships between operating speeds of successive road design elements in two-lane rural highways

open access: yesTransport, 2017
Speed has been identified for a long time as a key risk factor in road traffic. Inappropriate speeds contribute to a relevant part of road crashes, and then to the mortality and disabilities resulting from them.
Laura Eboli   +3 more
doaj   +1 more source

Investigating the influence of segmentation in estimating safety performance functions for roadway sections

open access: yesJournal of Traffic and Transportation Engineering (English ed. Online), 2018
Safety performance functions (SPFs) are crucial to science-based road safety management. Success in developing and applying SPFs, apart data quality and availability, depends fundamentally on two key factors: the validity of the statistical inferences ...
Salvatore Cafiso   +2 more
doaj   +1 more source

Determination of Applicable Adjacent Horizontal Curve Radii Using Operating Speed

open access: yesPromet (Zagreb), 2019
Design of curves and their adjacent elements presents the greatest safety problem on rural two-lane roads. The use of the existing alignment consistency safety criteria (design, operating speed, and driving dynamic consistency) could have some ...
Dražen Cvitanić, Biljana Maljković
doaj   +1 more source

Modelling the Operating Speed in Segments of Two-Lane Highways from Probe Vehicle Data: A Stochastic Frontier Approach

open access: yesJournal of Advanced Transportation, 2018
Most of the existing operating speed statistical models are applicable to individual design elements, particularly horizontal curves and tangents. A segment approach to operating speed has rarely been followed, with a few exceptions mainly related to the
António Lobo   +3 more
doaj   +1 more source

DigiChrom: A Domain Ontology for Semantic Representation of Trivalent Chromium Platings and Its Large Language Model‐Based Alignment With Multiple Mid‐Level Ontologies

open access: yesAdvanced Engineering Materials, EarlyView.
Digitalizing electroplating requires both domain knowledge and interoperability. This work introduces PlatOn, a domain ontology for trivalent chromium plating and coating characterization, and a hybrid pipeline that aligns it to a mid‐level reference ontology by combining eight similarity metrics with language model reasoning. Expert‐validated mappings
Janik Harter   +10 more
wiley   +1 more source

Fully Additive Vertical Organic Electrochemical Transistors on Renewable and Compostable Substrates Enable Ultrasensitive Bioelectronics

open access: yesAdvanced Functional Materials, EarlyView.
Fully additive vertical organic electrochemical transistors (vOECTs) with channel‐length of 226 nm on a 50 µm compostable substrate achieve >106 current modulation and ∼36 mS transconductance. Ion‐selective integration enables 1.1 mA dec−1 sensitivity and 36 µm detection limit, highlighting a scalable platform for sustainable electronics and ...
Giulia Frusconi   +3 more
wiley   +1 more source

From Photoalignment to Structured Light: Liquid Crystal Platforms for Beam Shaping and Complex Wavefronts

open access: yesAdvanced Functional Materials, EarlyView.
Photoaligned and photopatterned liquid crystal platforms provide programmable control of optical phase, polarization, and spin‐orbit interactions, enabling compact generation of structured light and complex wavefronts. This review highlights how tailored molecular orientations transform simple beams into designed optical fields, opening versatile ...
Le Zhou   +6 more
wiley   +1 more source

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