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Individual transport emissions and the built environment: A structural equation modelling approach

Siqi Song, Mi Diao and Chen-Chieh Feng

Transportation Research Part A: Policy and Practice, 2016, vol. 92, issue C, 206-219

Abstract: Increasing CO2 emissions from the transport sector have raised substantial concerns among researchers and policy makers. This research examines the impact of the built environment on individual transport emissions through two mediate variables, vehicle usage and vehicle type choice, within a structural equation modelling (SEM) framework. We find that new-urbanism-type built environment characteristics, including high density, mixed land use, good connectivity, and easy access to public transport systems help reduce transport CO2 emissions. Such mitigating effect is achieved largely through the reduced vehicle miles travelled (VMT) and is enhanced slightly by the more efficient vehicles owned by individuals living in denser and more diverse neighborhoods, all else being equal. Our research findings provide some new evidence that supports land use policies as an effective strategy to reduce transport CO2 emissions.

Keywords: Transport CO2 emissions; Built environment; Vehicle usage; Vehicle type choice (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1016/j.tra.2016.08.005

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