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Effects of a Cooperative Variable Speed Limit System on Traffic Performance and Exhaust Emissions
Swedish National Road and Transport Research Institute, Society, environment and transport, Traffic analysis and logistics. Linköpings universitet, Kommunikations- och transportsystem.ORCID iD: 0000-0001-5531-0274
Swedish National Road and Transport Research Institute, Society, environment and transport, Traffic analysis and logistics. Linköpings universitet, Kommunikations- och transportsystem.ORCID iD: 0000-0001-9635-5233
Kungliga Tekniska Högskolan (KTH), Stockholm. (Trafik och Logistik)
2013 (English)In: TRB 92nd Annual Meeting Compendium of Papers, 2013Conference paper, (Refereed)
Abstract [en]

Variable Speed Limit Systems (VSLS) where variable message signs show speed limits based on traffic or road conditions exist on motorways in many countries. The purpose of the VSLS is to decrease the number of accidents while increasing efficiency of traffic system. Cooperative systems are a type of intelligent transport system that has received increasing interest lately. The central part of a cooperative system is communication between vehicles and/or vehicles and the infrastructure. In this paper, a cooperative systems extension of a VSLS is proposed and evaluated by means of microscopic traffic simulation. In the proposed cooperative VSLS, communication between the vehicles and the infrastructure is made available via a roadside unit communicating the speed limits to vehicles upstream on the road. Both aggregate and micro-scale emission models are used to estimate emission from vehicle states in traffic flow. The results of the study show that the cooperative VSLS has a potential to contribute to flow harmonization and to reduce environmental impacts. The emission estimates in the study are dependent on the emission models being applied.

Place, publisher, year, edition, pages
2013.
Series
Transport Research Board 92nd Annual Meeting
Keyword [en]
Deceleration, Acceleration, Variable speed limit, Micro, Simulation, Traffic flow, Emission, Deceleration, Acceleration
National Category
Transport Systems and Logistics
Research subject
Road: Traffic engineering, Road: Traffic theory
Identifiers
URN: urn:nbn:se:vti:diva-6547OAI: oai:DiVA.org:vti-6547DiVA: diva2:676092
Conference
Transport Research Board 92nd Annual Meeting, 13-17 January 2013, Washington DC, USA
Available from: 2013-05-20 Created: 2013-12-05 Last updated: 2016-02-25Bibliographically approved

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http://trid.trb.org/view/2013/C/1242329

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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
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  • Other locale
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Output format
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  • asciidoc
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