2017
DOI: 10.1080/15732479.2017.1330893
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A pseudo-microsimulation approach for modelling congested traffic loading on long-span bridges

Abstract: This paper investigates congested traffic loading on long-span bridges through the use of traffic microsimulation. Six months of Weigh-In-Motion (WIM) free-flow traffic data (including cars) are used as input for the microsimulation of congested traffic. Key parameters that affect traffic loading are identified in the output of the microsimulation, and these parameters form the basis for a more computationally-efficient 'pseudo-microsimulation of congested traffic' (PMCT) model. This PMCT model is shown to rep… Show more

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Cited by 10 publications
(1 citation statement)
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“…Generating vehicle sequences similar to load forms 1 to 3 by micro-simulation method, will result in a high computational cost. In fact, these load forms were utilized as the current traffic simulation criterion for long-span bridges by some authors at a high computational cost (O'Brien, Lipari & Caprani 2015;Caprani, O'Brien & Lipari 2016;Carey, Caprani & Enright 2018). In conclusion, to achieve a balance between computational speed and accuracy, in the present research load form 4 is selected to develop the traffic load model for the design and assessment of long-span bridges based on the vehicle extreme scenario probabilistic model.…”
Section: Load Formmentioning
confidence: 99%
“…Generating vehicle sequences similar to load forms 1 to 3 by micro-simulation method, will result in a high computational cost. In fact, these load forms were utilized as the current traffic simulation criterion for long-span bridges by some authors at a high computational cost (O'Brien, Lipari & Caprani 2015;Caprani, O'Brien & Lipari 2016;Carey, Caprani & Enright 2018). In conclusion, to achieve a balance between computational speed and accuracy, in the present research load form 4 is selected to develop the traffic load model for the design and assessment of long-span bridges based on the vehicle extreme scenario probabilistic model.…”
Section: Load Formmentioning
confidence: 99%