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A Model for Capacity Reduction at Roadwork Zone
Movea.
Statens väg- och transportforskningsinstitut, Samhälle, miljö och transporter, SAMT, Trafikanalys och logistik, TAL.ORCID-id: 0000-0002-0336-6943
2016 (engelsk)Inngår i: Transportation Research Procedia, ISSN 2324-9935, E-ISSN 2352-1465, Vol. 15, s. 245-256Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

This paper presents an investigation of capacity reduction in connection with roadwork. The paper presents a state-of-the-art description on roadwork effects on capacity. The state-of-the art has been used to develop a model for estimation of capacity reduction at roadwork zone on Swedish roads. The model has partly been validated with empirical data from a full scale test at the freeway network in Gothenburg.

The studies presented in the literature shows that capacity differs not only between different roadwork designs but also between roadwork with similar design. Thus, one can conclude that there is a high variation between the roadwork zone due to effects of surrounding elements, such as the type of work and external effects such as rain (which affects the capacity even under normal conditions). The differences that exist in the estimation of capacity for motorway sections next to a roadwork zone can be said to consist of four situation-specific variables:

  • the percentage of heavy vehicles
  • type of road
  • the width of the remaining lanes
  • diversion of traffic to the opposite carriageway

The conclusion from the literature review is that the most important parameters that should be incorporated in a Swedish capacity manual for the operation and maintenance of roadwork are:

  • the proportion of heavy traffic
  • lane width, type of roadwork
  • number of closed lanes
  • closed road shoulder
  • proportion of commuter traffic
  • length of roadwork zone.

The paper presents a comparison between the Dutch model for computation of capacity reduction and a composite model of reduction factors from Germany, USA and Denmark. The comparison show that the two models essentially gives the same results. Based on these results a new model was developed. In the developed model, the capacity for the remaining lane is calculated.

sted, utgiver, år, opplag, sider
2016. Vol. 15, s. 245-256
Emneord [en]
Construction site, Maintenance, Impact study, Capacity, Mathematical model, Diversion (traffic), Traffic mixture, Traffic lane, Closure (road)
HSV kategori
Forskningsprogram
20 Road: Traffic engineering, 25 Road: Traffic theory
Identifikatorer
URN: urn:nbn:se:vti:diva-10982DOI: 10.1016/j.trpro.2016.06.021OAI: oai:DiVA.org:vti-10982DiVA, id: diva2:1039075
Konferanse
International Symposium on Enhancing Highway Performance (ISEHP), June 14-16, 2016, Berlin — (7th International Symposium on Highway Capacity and Quality of Service, 3rd International Symposium on Freeway and Tollway Operations)
Prosjekter
DUKAT
Forskningsfinansiär
Swedish Transport Administration, 201757Tilgjengelig fra: 2016-10-21 Laget: 2016-10-21 Sist oppdatert: 2017-11-29bibliografisk kontrollert

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