ABSTRACT
Management of water supply is a key feature of modern societies and communities. A constant and reliable supply of potable water, and evacuation of wastewater, is needed to maintain the health and living standards. Potable water and wastewater systems are vulnerable to environmental stressors and to disasters. They have, for example, been damaged during many past earthquakes.
Resilient potable water and wastewater systems are characterized by robust system components and a resourceful recovery and adaptation in case of damage. A methodology to quantify the resilience of a water distribution or wastewater system using the Re-CoDeS framework is presented. The Re-CoDeS framework allows us to consider not only the performance of civil infrastructure systems after a disaster, but to also include the recovery and evolution of the community demand for the services of civil infrastructure systems.
The presented methodology is illustrated in a case study of the water supply and distribution systems of the Kathmandu Valley in Nepal submitted to a scenario earthquake. The methodology can be easily extended to other hazards and to water supply and distribution systems or wastewater systems of other cities or regions.
