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http://hdl.handle.net/10773/22151
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DC Field | Value | Language |
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dc.contributor.author | Fernandes, Paulo | pt |
dc.contributor.author | Rouphail, Nagui | pt |
dc.contributor.author | Coelho, Margarida C. | pt |
dc.date.accessioned | 2018-02-12T17:05:56Z | - |
dc.date.available | 2018-02-12T17:05:56Z | - |
dc.date.issued | 2017 | - |
dc.identifier.issn | 0361-1981 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/22151 | - |
dc.description | Este trabalho insere-se no âmbito do projeto @CRUiSE (PTDC/EMS-TRA/0383/2014), financiado no âmbito do Projeto 9471 – Reforçar a Investigação, o Desenvolvimento Tecnológico e a Inovação (Projeto 9471 – RIDTI) e comparticipado pelo Fundo Comunitário Europeu FEDER. | pt |
dc.description.abstract | The number of turbo-roundabouts constructed in Europe has grown steadily in the past decade. While there has been extensive work on the operational and environmental impacts of isolated turbo-roundabouts, research on closely-spaced turbo-roundabouts along corridors is somewhat lacking. The objective of this research is to evaluate the impact of turbo-roundabout corridors on both traffic performance and emissions. The research has three major thrusts: 1) to identify the hotspot emission locations along turbo-roundabout corridors; 2) to compare the overall performance of turbo-roundabout corridors against conventional two-lane roundabouts on arterials; 3) to address the integrated effect of geometric and operational characteristics of turbo-roundabout corridors on carbon dioxide, carbon monoxide, nitrogen oxides and hydrocarbons emissions. Vehicle activity along with traffic flow data were collected from three turbo-roundabout corridors in the Netherlands. Site-specific operations were analyzed using microscopic traffic and emissions platforms (respectively, VISSIM and Vehicle Specific Power – VSP). The results showed that emission hotspots along these corridors occurred in the segments located just downstream of the turbo-roundabout, both in absolute terms (more than 30% of total emissions) and per unit distance. It was also found that the implementation of two-lane roundabout corridors outperformed the turbo-roundabout corridors in terms of vehicle emissions, however the differences were not statistically significant (p-value<0.05). Data analysis indicated that an additional decrease in corridor’s emissions (4-11%, depending on the pollutant) may be reached by altering the spacing (from 180 to 240 m) between two-closely spaced turbo-roundabouts. | pt |
dc.language.iso | eng | pt |
dc.publisher | Transportation Research Board | pt |
dc.relation | POCI-01-0145-FEDER-016740 | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/147406/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F87402%2F2012/PT | pt |
dc.relation | PTDC/EMSTRA/0383/2014 | pt |
dc.relation | This work is financed by ERDF Funds through the Operational Program Competitiveness and Internationalization - COMPETE 2020 and by National Funds through FCT - Foundation for Science and Technology within the scope of the POCI-01-0145-FEDER-16740 project. | - |
dc.rights | openAccess | por |
dc.subject | Emissions | pt |
dc.subject | Traffic performance | pt |
dc.subject | Spacing | pt |
dc.subject | Turbo-roundabout corridors | pt |
dc.title | Turboroundabouts along corridors analysis of operational and environmental impacts | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 46 | pt |
degois.publication.issue | 2627 | pt |
degois.publication.lastPage | 56 | pt |
degois.publication.title | Transportation Research Record | pt |
dc.identifier.doi | 10.3141/2627-06 | pt |
Appears in Collections: | TEMA - Artigos |
Files in This Item:
File | Description | Size | Format | |
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3. Fernandes et al_Turbo-Roundabouts Along Corridors Analysis of Operational and Environmental Impacts_TRR2017.pdf | 776.35 kB | Adobe PDF | View/Open |
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