This paper introduces an integrated transportation and energy activity-based model (iTEAM), a tool for the evaluation of “green policies” aimed at enhancing sustainability and well-being. The model will simulate individual/household and organization/firm agents at a micro level. The aggregate simulation results will help forecast the impacts of policies on transport system efficiency and land-use dynamics in the simulated areas. This process is complemented by Material Flow Accounting (MFA) techniques, which account for a range of factors including wellbeing, waste production, and carbon emissions to calculate the urban metabolism.