Seismic risk assessment of water supply systems - Seismic Risk Analysis and Management of Civil Infrastructure Systems - page 653

Seismic hazards System characteristics

Transient
ground
deformation

Permanent
ground
deformation

Physical
characteristics

Operational
characteristics

Seismic demand / system interaction

Above ground
facilities

Underground
facilities

Interaction
with community

Fragility assessment System response

Consequences

Emergency
response

System
restoration

Community
impact

Regional economic
impact

24.1 Framework for seismic risk assessment of water supply systems
(after O'Rourke et al. 2004a; Wang and O'Rourke 2008).

Table 24.1 System characteristics of water supply systems

Physical characteristics Operational characteristics

Components Planning

Connectivity Mapping and GIS

Functionality Monitoring and maintenance

Interaction Operational procedures

of components that constitute the system, connectivity among components,
required functionality for each component, and how different components
interact with one another to achieve the designated functionality of the
system as a whole. In general, a water supply system consists of a network
of pipes, pumps, and valves that move water from sources to customers,
tanks and reservoirs that store water to accommodate fl uctuations in
demand as a result of varying rates of usage or fi re protection needs, and
other supporting infrastructures. The operational characteristics of the