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Influence of heavy traffic lateral wander on pavement deterioration
Swedish National Road and Transport Research Institute, Infrastructure, Pavement Technology.
Swedish National Road and Transport Research Institute, Infrastructure, Pavement Technology.
Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.
2012 (English)In: EPAM 2012: Malmö, Sweden, 5–7 September : 4th European pavement and asset management conference, Linköping: Statens väg- och transportforskningsinstitut, 2012, , 11 p.Conference paper, (Other academic)
Abstract [en]

Lateral wander of the traffic has an impact on the degradation development of pavements. This is usually not accounted for in the structural design process. Facilities with wide carriageways and broad shoulders tends to have relatively large lateral spreading while narrow road facilities lacking any shoulders can have highly channelized traffic pattern. In this research lateral wander characteristics have been measured for different road facilities. They can be assumed follow a normal distribution where the standard deviation describes their lateral spreading. Rut depth has thereafter been estimated according to two new rutting calculation scheme where lateral wander characteristics has been taken into account. The first approach is based on a two step mechanistic empirical (M-E) evaluation of the permanent strain in all layer of the structure and using a time hardening approach to sum up for all wander locations. This has thereafter been used to estimate the difference in rutting development as a function of the standard deviation. The second approach concentrates on calculating the permanent strain visco-elastically in the bound layers of the structure. Both procedures can be used to estimate the rate of relative deterioration for different road facilities. Based on the same structure the first approach give around 6 % increase in the surface rut as the standard deviation of the lateral wander increases from 10 to 20 cm. The second approach estimates this difference to be around 20 %. The difference between the two approaches are partly explained due to that the first approach estimates the rut based on all layers but the second approach from the bound layers only.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2012. , 11 p.
Keyword [en]
Pavement design, Rut, Depth, Geometric design, Width, Traffic lane, Prediction, Calculation
Keyword [sv]
Dimensionering av vägöverbyggnad, Hjulspår, Djup, Vägutformning, Bredd, Körfält, Förutsägelser, Beräkning
National Category
Infrastructure Engineering
Research subject
30 Road: Highway design, 32 Road: Pavement design
Identifiers
URN: urn:nbn:se:vti:diva-5303Libris ID: 13540254ISBN: 978-91-637-1432-0 (print)OAI: oai:DiVA.org:vti-5303DiVA: diva2:674136
Conference
EPAM - 4th European Pavement and Asset Management conference
Available from: 2013-12-03 Created: 2013-12-03 Last updated: 2017-03-30Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
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  • vancouver
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More styles
Language
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