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This file contains ESN (Emergency Service Number), which are based on jurisdictional boundaries. Internal Response Areas (IRAs) define response scenarios that indicate the categories or agencies (Police, Fire, EMS, etc.) that should respond to calls in specific areas. They also specify which departments should send units (Police Department A, Fire Department C, EMS Department D). IRAs include Fire and EMS Run Zones and Tracts. Multiple scenarios can be defined for an area to provide for a primary scenario and as many backups as you would like to plan. IRAs are defined by your agency. Run Zones (Fire Zones and EMS Zones) are defined and used in the EMS Run Card and Fire Run Card features. Run zones are completely independent of the patrol area. They provide a way to assign fire and EMS responsibilities and responses. Run Zones are then associated with an IRA in the IRA database, and GEO entries are assigned IRAs for specific addresses. In this way, Fire and EMS Run Zones become associated with specific areas or addresses. Tracts are used for reporting. Offense tracts are often divided by neighborhoods or similar development type, such as with a commercial area. They are often small enough to give a clear picture of activity in a particular neighborhood without regard for actual street addresses. Tracts are not considered in the operation of CAD and are included strictly for later report summaries. LayerID:11 |