The changing nature of demand for urban water services is an important area of research with a range of implications for the engineering and management of water systems. While most work in this area has tended to be sectoral (e.g. manufacturing versus domestic or agricultural), our approach is to take the ‘urban region’ as the unit of analysis, emphasising water services flows through the urban fabric of a selection of case study cities, many of which are port or coastal cities to reflect their growing global importance.
One key challenge is to develop a better, finer grained, understanding of the profile of water demand in different sectors (domestic, industrial and agricultural) and the underlying drivers. Whilst there is already a large literature on this general subject (cf. Staddon, 2010 for a review) it is hampered by two key faults: it does not spatially contextualise its findings (and therefore tends to over-generalise) and it is not generally based on solid replicable empirical science.
Within the ‘science for resilience’ portfolio we are actively developing three workstreams:
Our ambition is to develop a stronger understanding of the demand side of what can be called the ‘urban hydrosocial cycle’ through the development of better data collection and analytical tools and through application of these to Bristol, followed by further global case study cities. This research is developing a methodological framework for characterising these flows of water services through a selection of cities in the four regions represented in the IWSN consortium plus Asia. These water services flow studies will be developed into full ‘urban water balance’ assessments.