Metabolism of Neighborhoods

Analysis of urban metabolism has been established as an appropriate approach for assessing the sustainability of cities. A desirable next step is to use the metabolism as a guide to designing more sustainable cities. This study provides an analysis of the metabolism of four representative Toronto neighborhoods. The annual energy consumption for buildings and transport is determined to be from 57 to 107 GJ/capita and from 0.5 to 9.2 GJ/capita, respectively. The annual consumption of food and water is found to be 1,100 and 92,300 kg/capita. The findings of the study have implications for the design of sustainable neighborhoods. This includes the construction of energy-efficient buildings, development of public transit, and encouragement of residents to replace inefficient water fixtures. More advanced methods might consist of growing the urban forest using nutrients from wastewater, and converting solar energy to building operational energy.

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Toronto