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The defined service quality for a particular activity (i.e. roading) or service area (i.e. streetlighting) against which service performance may be measured. Service levels usually relate to quality, quantity, reliability, responsiveness, environmental acceptability and cost.
IIMM
"Level of Service" can be defined as the service quality for a given activity. Levels of Service are often documented as a commitment to carryout a given action or actions within a specified time frame in response to an event or asset condition data.
LGAM
