The impacts of pandemic on the urban water cycle were assessed. • Data mining from sewers can be enabled by digitalisation of the water industry. • Effectiveness of public health measures can be monitored in the aggregate in sewers.

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We propose to explore the role of values in policy-making and the use of ABS for elucidating this role. In this paper we outline a conceptual framework for value-driven modelling of public policies and illustrate it with an agent-based simulation of irrigation practices.

Of all the uses of water, agriculture is the one that requires the greatest proportion of resources worldwide. Consequently, it is a salient subject for environmental policy-making, and adoption of modern irrigation systems is a key means to improve water use e iciency. In this paper we present an agent-based model of the adoption process-known as "modernisation"-of a community constituted by farmer agents. The phenomenon is approached as a contingent innovation adoption: a first stage to reach a collective agreement followed by an individual adoption decision. The model is based on historical data from two Spanish irrigation communities during the period-. Results suggest that individual profits and farm extension (as proxy of social influence) are suitable assumptions when modelling the modernisation of communities in regions where agriculture is strongly market-oriented and water is scarce. These encouraging results point towards the interest of more sophisticated socio-cognitive modelling within a more realistic socio-hydrologic context.