Stationary systems forming a network and serving
whole communities, where the system as a whole is
intended to be maintained indefinitely at a particular
level of service potential by the continuing replacement
and refurbishment of its components. The network
may include normally recognised ordinary assets as
components.
IIMM
Infrastructure is any long-life physical asset that consists of an entire system or network (including components), not otherwise defined, which provides the foundation to support public services and enhance the capacity of the economy.
LGAM
Physical assets that contribute to meeting the needs of organisations or the need for access to major economic and social facilities and services, eg. roads, drainage, footpaths and cycleways. These are typically large. interconnected networks or portfolios of composite assets. The components of these assets may be separately maintained, renewed or replaced individually so that the required level and standard of service from the network of assets is continuously sustained. Generally the components and hence the assets have long lives. They are fixed in place and arc often have no separate market value.
AIFMG 2009