Change search
ReferencesLink to record
Permanent link

Direct link
Effects of a Cooperative Variable Speed Limit System on Traffic Performance and Exhaust Emissions
KTH, School of Architecture and the Built Environment (ABE), Transport Science, Traffic and Logistics. KTH, School of Architecture and the Built Environment (ABE), Centres, Centre for Traffic Research, CTR.
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
National Category
Transport Systems and Logistics
URN: urn:nbn:se:kth:diva-138250OAI: diva2:680651
Transportation Research Board 92nd Annual Meeting; Washington DC, USA, 2013-1-13 to 2013-1-17

TSC import 2377 2013-12-17

QC 20140129

Available from: 2013-12-18 Created: 2013-12-18 Last updated: 2014-01-29Bibliographically approved

Open Access in DiVA

No full text

Other links

Publication at TRB Publications Index

Search in DiVA

By author/editor
Ma, XiaoliangTapani, Andreas
By organisation
Traffic and LogisticsCentre for Traffic Research, CTR
Transport Systems and Logistics

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 40 hits
ReferencesLink to record
Permanent link

Direct link