In the past decade, mapping has come a long way for public safety agencies and helps first responders get to the scene faster and safer.
When the Douglas County Sheriff's Office in Colorado upgraded to digital maps and did away with their paper maps, it helped improve routing and response times while also reducing crime and increasing officer safety.
According to Capt. Brad Heyden, Douglas County is one of the fastest growing counties in the state of Colorado. With that growth, it is important for the sheriff's office to maintain accurate geospatial information systems (GIS) data.
This GIS data helps dispatchers maintain up-to-date information regarding the county, which helps them send fast and accurate responses to calls for service. The Douglas County's Sheriff's Office utilizes the different map layers offered by the GIS capabilities in their computer aided dispatch (CAD) system to identify parcels and jurisdictions as well as retrieve premise history information and set up perimeters.
"Our GIS is so powerful and robust that even before a new construction project is complete, dispatchers have the building's address in our system," Heyden said. "In the past, having that information in our CAD system would have been impossible."
With these mapping capabilities, the sheriff's office is better able to make use of the data pulled from its public safety software system, specifically in terms of identifying areas in need of more patrol and detailing premise history.
Heyden explained that mapping areas with high calls for service helps CAD administrators and law enforcement officers increase patrol in specific locations, which helps to reduce calls for service in the area due to the presence of law enforcement.
The enhanced premise history capabilities are beneficial for first responders as they are aware of more information while on the scene. This information includes anything from prior contact with the individuals to known associates, specifics about the location including any hazards, drug history, and other details that could be dangerous for responders.
"Detailed premise history really helps make situations safer for first responders," Heyden said.
There are a few ways to dispatch emergency services when a call for service comes in to a call center.
Without computer aided dispatch (CAD) software, dispatchers send transmissions via radio to first responders. These first responders use pen and paper to record the information or commit the details to memory. To get to the scene, they might use their own mobile phone’s routing features, or rely on their own knowledge of the area.
Then there are dispatchers who utilize CAD software and send a response, but are unaware of the unit’s estimated time of arrival (ETA). Once the unit is dispatched to a call for service, dispatchers calculate the ETA based on the unit’s location, speed and route.
What dispatchers and law enforcement officers have learned is that a much more efficient way to get to the scene is through proximity dispatching. With this method, dispatchers see where police, fire and EMS units are on a digital map in CAD software in real-time along with their continuously adjusting ETAs.
The continuously updated ETAs that proximity dispatching relies on are provided through the use of automatic vehicle location (AVL) functionality. This provides the most accurate information possible, so that dispatchers and first responders can see where all units are by looking at their digital maps either in the CAD mapping system or mobile data terminals in patrol cars, fire engines, or other emergency vehicles. Using this information, dispatchers determine which unit should be dispatched to ensure the quickest response.
AVL works by having each emergency vehicle equipped with global positioning system (GPS) functionality. By pre-programming GPS data into an agency’s mobile server, the mobile software located in police, fire and EMS vehicles communicates seamlessly back and forth to dispatch.
This same signal is sent to other units within the agency, all of which are able to view this information using the maps on their mobile devices.
AVL technology continuously sends latitude and longitude coordinates back to the CAD system so that dispatchers always know the location of a unit.
Automation Streamlines Processes
Multi-Jurisdictional Data Sharing
Using New World Public Safety Software in One of the Fastest Growing Cities in Arizona
See all videos »