With map-based computer aided dispatch (CAD) systems, dispatchers in public safety agencies ensure patrol effectively covers an entire area – not just criminal hotspots. The Greenbelt Police Dept. in Maryland uses this technology to keep their community safe.
From fugitives on the run to massive pileups, the stories from The Call show the type of dynamic situations dispatchers, first responders, sworn officers, and civilian employees handle on a daily basis and the role that technology plays while they make communities safer together.
In looking back at the first half of 2017, the following posts and videos to The Call highlight the work of public safety personnel throughout the country:
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When a bridge goes out in a community, dispatchers work even harder to route first responders to the scene of an emergency. But imagine what happens when numerous bridges are impassable throughout an entire county.
Pennsylvania has approximately 4,500 structurally deficient bridges, which will be repaired or replaced though the Rapid Bridge Replacement Project. While this is necessary, it does present a problem for dispatchers and first responders.
According to Ron Wolbert, the director of 911 operations for the Clarion County Office of Emergency Services, numerous bridges in Clarion County are in the process of being repaired or replaced.
"The bridge project has created new and interesting challenges for dispatch procedures," Wolbert said.
In one area of the county, primary responding agencies have been cut off from access to the areas they serve. To ensure the residents in this area still receive proper emergency services, response plans in the county's CAD system were reconfigured.
Now, the county's CAD system reassigns response areas and temporary alarm assignments for all responders in the impacted location. To do this, response times, access from adjoining townships and boroughs, and the availability of resources had to be factored in. These areas were then assigned roadblock areas on the county's CAD map and labeled and highlighted on screen for easy recognition by dispatchers.
"Dispatchers not only see the highlighted areas on their digital maps, but a labeled description advising of the exact procedures that need to be followed for a timely response," Wolbert said. "I can say the ease of use of the system, coupled with the many features we can utilize, has made the construction that comes with the bridge projects more manageable and not allowed it to become a disaster in our 911 center."
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.
Increasing patrol in areas of high crime is nothing new for most jurisdictions.
According to CAD Manager Mike Dewey of the Greenbelt Police Department, patrolling crime hotspots is a priority. Ensuring other areas of the city are also covered efficiently is something they do as well through the use of their mapping software.
Dewey said he monitors patrol patterns in real time, which helps to identify areas of high saturation. High saturation can indicate areas known for higher crime rates, which leads to an increase of patrol. It can also show where several police cars are following a response to a call for service.
Being able to identify these areas empowers everyone from supervisors to dispatchers to officers in the field to see where each police unit is located.
From there, officers have the ability to move from areas of high saturation to areas of lighter coverage. This maximizes the police department's coverage of the entire city and provides effective coverage for a community.
"Using the software to watch where officers have been recently allows the shift to function as more of a coordinated unit," Dewey said. "Without this ability, it is much more likely that areas in the community would inadvertently get less efficient coverage."
The mapping capabilities of Greenbelt's public safety software also aids in faster response times. For instance, when a call comes in to the dispatch center but has not yet been assigned, officers in the field can see that the call has been queued up and can start driving in the direction where there is a need for service.
In taking this proactive measure, officers are en route faster and arrive on the scene quicker once the address is provided or units are assigned.
"The capabilities of our software system definitely result in faster response times," Dewey said.
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