Extending Municipal Water Demand Forecasting Capacities by Incorporating Behavioural Responses
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AbstractGrowing urban water demands are putting increasing pressure on the infrastructure of many water agencies, signaling the potential need for greater capital investments. Most water agencies forecast demand by multiplying future population estimates with historical per capita water use. However, this approach tends to be inaccurate by failing to account for other demand drivers, such as income, price and household appliance holdings. Providing water agencies with enhanced water forecasting capabilities that better reflect water users’ behaviour is one way these agencies can address this challenge. The proposed study builds upon the following initial project: Project (2008-2012): More Value from the Same Water: Maximizing Water's Sustainable Contribution to the Canadian Economy, Diane Dupont, Brock University This project sought to advance understanding of the factors (i) governing water use, (ii) influencing water recirculation decisions, and (iii) influencing adoption of residential water conserving technologies. The project produced statistical models of households' and manufacturing firms' water use. As an extension of this research, the proposed project is based on observations made by a number of experts in the municipal water sector. Specifically, it has been observed that water conservation departments are not always involved in demand forecasting, since this is done on the basis of infrastructure requirements. Previous experience in the energy industry has demonstrated how costly it can be to overbuild supply networks based on faulty demand forecasts that have failed to incorporate behavioural responses related to conservation. Thus, there is a need to bring together the behavioural sciences that underlie efforts to promote water conservation in the short-term with longer-term water demand forecasts.
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