Results 51 to 60 of about 5,725 (291)

A case study on multi-lane roundabouts under congestion: Comparing software capacity and delay estimates with field data

open access: yesJournal of Traffic and Transportation Engineering (English ed. Online), 2016
Existing studies on modern roundabouts performance are mostly based on data from singe lane roundabouts that are not heavily congested. For planners and designers interested in building multilane roundabouts for intersections with potential growth in ...
Xuanwu Chen, Ming S. Lee
doaj   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

Developing a method of multi-lane roundabouts capacity

open access: yesВестник СибАДИ, 2023
Introduction. In recent years a number of methodological and regulatory documents have been developed for public road roundabouts in the Russian Federation. In particular it was proposed to evaluate the quality of traffic management at roundabouts by the
N. M. Karimov, A. Yu. Mikhailov
doaj   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

open access: yesAdvanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich   +3 more
wiley   +1 more source

Research, Analysis and Evaluation of Roundabouts Constructed in Lithuania

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2010
It was in the year 2001 when Lithuania first started constructing roundabouts on the rural roads of national significance with the heavyweight transit traffic and creating conditions for sustainably safe traffic. A data of statistical analysis shows that
Daiva Žilionienė   +2 more
doaj   +1 more source

Performance and safety effectiveness evaluation of mini-roundabouts in Michigan

open access: yesJournal of Engineering and Applied Science, 2023
This study evaluates the performance and safety effectiveness of mini-roundabouts. Crash, operational, and geometric data for 14 mini-roundabouts located in the state of Michigan were collected for both before and after installation time periods between ...
Baraah Qawasmeh   +2 more
doaj   +1 more source

Estimation of Air Pollutant Emissions in Flower Roundabouts and in Conventional Roundabouts

open access: yesArchives of Civil Engineering, 2013
Abstract The road pollutant emissions, above all in urban context, are correlated to many infrastructural parameters and to traffic intensity and typology. The research work on road junction geometry, carried out in European research centres, has recently allowed to design new road intersection types which are of undoubted interest, especially in terms
Corriere F   +3 more
openaire   +2 more sources

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Feasibility and Limitations of the Advanced Replica Process for Bioactive Glasses

open access: yesAdvanced Engineering Materials, EarlyView.
Periodic 3D‐printed Kelvin‐cell templates enable a controlled advanced replica process for fabricating highly porous glass lattices. Across P45K9, 45S5, and 13–93, material‐dependent differences in coating, burnout, and shrinkage lead to distinct strut morphologies, while comparable final porosities of 83%–88% are retained.
Swantje Funk   +4 more
wiley   +1 more source

Roundabouts in Signalized Corridors

open access: yes, 2010
Typically, roundabouts in the United States are installed at isolated intersections to address location-specific safety or operational needs. The use of roundabouts in signalized corridors, however, has not been well evaluated.
Hillary N. Isebrands   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy