The effects of small roundabouts on emissions and fuel consumption: a case study
Författare
Summary, in English
The effects of small roundabouts on emissions and fuel consumption were evaluated using the “car-following” method in a before/after study. The results showed that at a roundabout replacing a signalised junction, CO emissions decreased by 29%, NOx emissions by 21%, and fuel consumption by 28%. At roundabouts, replacing yield regulated junctions, CO emissions increased on average by 4%, NOx emissions by 6%, and fuel consumption by 3%. The results indicate that the large reductions in emissions and fuel consumption at one rebuilt signalised junction can “compensate for” the increase produced by several yield-regulated junctions rebuilt as roundabouts.
Avdelning/ar
Publiceringsår
2002
Språk
Engelska
Sidor
65-71
Publikation/Tidskrift/Serie
Transportation Research. Part D: Transport & Environment
Volym
7
Issue
1
Dokumenttyp
Artikel i tidskrift
Förlag
Elsevier
Ämne
- Infrastructure Engineering
Nyckelord
- car-following
- Small roundabouts
- signalised junction
- junctions with yield regulation
- emissions
- fuel consumption
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 1361-9209