Police Sectors are areas which patrol cars are dispatched. In Cambridge there are 5 sector cars and each cruiser has two officers in each car. This is different from route cars which only have 1 officer per car. This layer is used for response by Cambridge Public Safety. Police Sectors are areas which police cars are dispatched using the computer aided dispatch (CAD) software.

Fire Engine Districts are areas which represent both Cambridge Engine companies housed in fire stations and areas which each engine will be dispatched. Some fire stations have Ladder companies and Rescue units which are represented in a different layer. Each Engine District is used by the Emergency Communication Center (ECC) to dispatch emergency vehicles and first responders.

Fire Rescue Districts are areas which represent Cambridge Rescue teams housed in fire stations and areas which each rescue truck will be dispatched. Each fire station has Engine companies. Some have Rescue teams. Each Rescue District is used by the Emergency Communication Center (ECC) to dispatch emergency vehicles and first responders.

Police Neighborhood Regions are used for response and reporting by Cambridge Public Safety. These are used for reporting, mapping and analysis purposes. The boundaries differ from the Community Development Neighborhoods slightly. This is a neighborhood map used by Cambridge Public Safety within their computer aided dispatch (CAD) software.

Fire Ladder Districts are areas which represent both Cambridge Ladder companies housed in fire stations and areas which each ladder truck will be dispatched. Each fire station has Engine companies. Some have Ladder companies. Each Ladder District is used by the Emergency Communication Center (ECC) to dispatch emergency vehicles and first responders.

Police Car Routes are areas which patrol cars are dispatched. In Cambridge there are many route cars and cruisers have one officer in each car. This is different from Sector cars which have 2 officers per car. This layer is used for response by Cambridge Public Safety.

Police Business Regions are used for response and reporting by Cambridge Public Safety. These are used for reporting, mapping and analysis purposes. There are 8 regions in Cambridge.

Police Walking Routes are areas which officers patrol by foot. There are 37 different walking routes in Cambridge. This layer is used for response by Cambridge Public Safety.

This point layer contains the eight fire stations within the City of Cambridge. Created for internal use by the Cambridge Emergency Communications Department, for general map-making purposes, and for public distribution.

For more information and download links see:
http://www.cambridgema.gov/gis/gisdatadictionary/public_safety/publicsafety_firestations.aspx