6533b832fe1ef96bd129a5ac

RESEARCH PRODUCT

Improving the sustainability of transportation: environmental and functional benefits of right-turn by pass lanes at roundabouts

Barbara Lo CastoGianfranco RizzoMarco GuerrieriGianluca ScaccianoceFerdinando Corriere

subject

EngineeringPollutant emissionsTotal costYield (finance)lcsh:TJ807-830Geography Planning and DevelopmentRoundaboutlcsh:Renewable energy sourcesManagement Monitoring Policy and Lawpollutant emissionspollutant emissionTransport engineeringfuel consumptionAir pollutantsjel:Qroundaboutsroundabouts; bypass lane; capacity ; pollutant emissions; fuel consumption; total costsroundabouts; bypass lane; capacity; pollutant emissions; fuel consumption; total costsSettore ICAR/04 - Strade Ferrovie Ed AeroportiNitrogen oxideslcsh:Environmental scienceslcsh:GE1-350bypass laneSettore ING-IND/11 - Fisica Tecnica AmbientaleRenewable Energy Sustainability and the Environmentbusiness.industrylcsh:Environmental effects of industries and plantscapacitytotal costsjel:Q0jel:Q2jel:Q3jel:Q5lcsh:TD194-195Settore ICAR/05 - Trasportijel:O13RoundaboutSustainabilityFuel efficiencyjel:Q56business

description

The functional performances of conventional roundabouts (single-lane and multi-lane) and innovative roundabouts (spiral, flower, C and turbo) can be improved through right-turn bypass lanes controlled by stop, yield or free-flow signs. The article presents evaluations of the emissions of air pollutants (carbon dioxide, nitrogen oxides, particle pollution (PM10 and PM2.5)), fuel consumption and construction, management, energetic and environmental costs in roundabouts without or with bypass lanes (controlled by stop, yield or free-flow). The suggested methodology has a general character and can be applied as a multi-parametric criterion for choosing road intersections, although, in the present paper, it has been employed only for a case study. For the aims of this research, we employed recent closed-form formulations to determine roundabout performances

10.3390/su7055838http://hdl.handle.net/10447/137056