Modeling same-direction two-lane traffic for bridge loading

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Show simple item record O'Brien, Eugene J. Enright, Bernard 2011-08-03T10:52:53Z 2011-08-03T10:52:53Z 2011 Elsevier Ltd. All rights reserved. en 2011-07
dc.identifier.citation Structural Safety en
dc.identifier.issn 0167-4730
dc.description.abstract Many highway bridges carry traffic in two same-direction lanes, and modeling the traffic loading on such bridges has been the subject of numerous studies. Different assumptions have been used to model multiple-presence loading events, particularly those featuring one truck in each lane. Using a database of weigh-in-motion measurements collected at two European sites for over 1 million trucks, this paper examines the relationships between adjacent vehicles in both lanes in terms of vehicle weights, speeds and inter-vehicle gaps. It is shown that there are various patterns of correlation, some of which are significant for bridge loading. A novel approach to the Monte Carlo simulation of such traffic is presented which is relatively simple to apply. This is a form of smoothed bootstrap in which kernel functions are used to add randomness to measured traffic scenarios. It is shown that it gives a better fit to the measured data than models which assume no correlation. Results are presented from long-run simulations of traffic using the different models and these show that correlation may account for an increase of up to 8% in lifetime maximum loading. en
dc.description.sponsorship Other funder en
dc.format.extent 341508 bytes
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Elsevier en
dc.relation.requires Architecture, Landscape & Civil Engineering Research Collection en
dc.relation.requires Critical Infrastructure Group Research Collection en
dc.relation.requires Urban Institute Ireland Research Collection en
dc.rights This is the author’s version of a work that was accepted for publication in Structural Safety. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Structural Safety Volume 33, Issues 4-5, July 2011, Pages 296-304 DOI: 10.1016/j.strusafe.2011.04.004 en
dc.subject Bridge en
dc.subject Traffic loading en
dc.subject Monte Carlo simulation en
dc.subject Bootstrap en
dc.subject Kernel density estimators en
dc.subject Correlation en
dc.subject.lcsh Bridges--Live loads--Computer simulation en
dc.subject.lcsh Monte Carlo method en
dc.subject.lcsh Bootstrap (Statistics) en
dc.subject.lcsh Kernel functions en
dc.title Modeling same-direction two-lane traffic for bridge loading en
dc.type Journal Article en
dc.internal.availability Full text available en
dc.internal.webversions en
dc.status Peer reviewed en
dc.identifier.volume 33 en
dc.identifier.issue 4-5 en
dc.identifier.startpage 296 en
dc.identifier.endpage 304 en
dc.identifier.doi 10.1016/j.strusafe.2011.04.004
dc.neeo.contributor O'Brien|Eugene J.|aut| en
dc.neeo.contributor Enright|Bernard|aut| en
dc.description.othersponsorship 7th Framework ASSET project en

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