Effect of local measures on the update of the circulating vehicle fleet and the reduction of associated emissions: 10 years of experience in the city of Madrid

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This paper presents the effects derived from the application of local policies and measures on the update of the circulating vehicle fleet of the city of Madrid in terms of greenhouse gases and urban pollutants emissions. The identification of said effects has been possible thanks to the use of Vehicle Fleet Characterization Studies (VFCS), which have been applied to Madrid for the last 10 years. It explores the evolution of several indicators, such as fleet age or urban emissions, through the analysis of the results obtained in the VFCS performed in 2013, 2017 and 2022. These studies help decisively in the evaluation of traffic emissions, thus being a compelling tool in the elaboration of the urban inventories. They constitute a cornerstone in the assessment of the city environmental issues and the decision-making process to reduce the environmental impact and minimize transport-related problems. The results show that the renovation of the fleet has diminished the emission of nitrogen oxides and particulate matter, improving the air quality. However, the emissions of carbon dioxide stay almost unaffected, which suggests that the climate change policies should be oriented towards the decarbonization of the road traffic, mainly by switching to electric vehicles or low-carbon fuels.

​This paper presents the effects derived from the application of local policies and measures on the update of the circulating vehicle fleet of the city of Madrid in terms of greenhouse gases and urban pollutants emissions. The identification of said effects has been possible thanks to the use of Vehicle Fleet Characterization Studies (VFCS), which have been applied to Madrid for the last 10 years. It explores the evolution of several indicators, such as fleet age or urban emissions, through the analysis of the results obtained in the VFCS performed in 2013, 2017 and 2022. These studies help decisively in the evaluation of traffic emissions, thus being a compelling tool in the elaboration of the urban inventories. They constitute a cornerstone in the assessment of the city environmental issues and the decision-making process to reduce the environmental impact and minimize transport-related problems. The results show that the renovation of the fleet has diminished the emission of nitrogen oxides and particulate matter, improving the air quality. However, the emissions of carbon dioxide stay almost unaffected, which suggests that the climate change policies should be oriented towards the decarbonization of the road traffic, mainly by switching to electric vehicles or low-carbon fuels. Read More