Abstract
Vehicle fleet modeling is a useful tool to analyze the dynamics of motor vehicles and their environmental impact at a macroscopic level, and has been applied in the USA and Europe. In this article, a road fleet model is constructed for the city-state Singapore. Policies that control vehicle ownership and congestion road pricing employed since 1998 differentiate Singapore’s vehicle market from other markets, making it a particularly interesting case to investigate. The fleet model is constructed using spreadsheets that track vehicle age, vehicle population, vehicle kilometers travelled, fleet fuel use and greenhouse gas (GHG) emissions. The authors hope that the model can be used as a tool to help stakeholders assess the social and environmental impact of relevant policies like capping vehicle growth, scrappage policy, reducing vehicle mileage and adopting green vehicles.
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