ArcWatch: GIS News, Views, and Insights

October 2017


Esri Apps Go on the Road with the Oklahoma Highway Patrol

Workforce for ArcGIS and ArcGIS Online Help the Agency Keep Motorists Safe and Fight Crime

By Carla Wheeler
ArcWatch Editor

The green icons on the map shows the positions of OHP troopers. Application designed by Christopher L Rogers, Oklahoma Department of Public Safety.

When the Oklahoma Highway Patrol (OHP) joined the search for a man suspected of killing a sheriff's deputy earlier this year, the law enforcement agency used Esri's ArcGIS Online and Workforce for ArcGIS to properly position more than 100 troopers as the dragnet tightened.

"We were able to keep track of all of [the troopers] with Workforce for ArcGIS," said Captain Ronnie Hampton, commander of the OHP's Futures, Capabilities, and Plans Division. Hampton spoke about his agency's use of Esri technology during the Esri National Security and Public Safety Summit, held last July in San Diego, California.

All 800 OHP troopers have downloaded the Workforce for ArcGIS mobile app onto their smartphones and enabled location tracking, giving dispatchers the ability to see each on-duty officer's GPS location on a customized Dispatch Map in ArcGIS Online. Workforce for ArcGIS is included at no extra cost in an ArcGIS Online subscription. The troopers, plus about 90 dispatchers, have ArcGIS Online accounts.

Hampton said that during the manhunt for the shooting suspect on April 18, 2017, incident commanders could see where each officer was stationed in real time on the map. That locational information helped the commanders decide where to place troopers that were needed for the operation while a search perimeter was set up. "We were able to send in over 100 troopers, sealing off a two-mile area," Hampton said. "We could see the boots on the ground." The Oklahoma County Sheriff's SWAT team captured the suspect several hours later that day.

Other types of organizations typically use Workforce for ArcGIS to create projects and assign them to staff in the field. Often, the projects involve service, maintenance, and inspection requests and follow-ups to sales leads.

But OHP leadership realized the app could provide a critical, real-time view of where all on-duty troopers are located as they patrol more than 111,000 miles of roads and highways, waterways, and the state capitol grounds. Knowing each trooper's position—which appears on the Dispatch Map as a green icon next to the officer's call number—gives communication center dispatchers the ability to instantly see where all the officers are stationed and, if possible, send the closest officer to the scene of an accident or other incident.

Until Workforce for ArcGIS was launched throughout the organization in the summer of 2016, dispatchers working in OHP's 13 communications centers were only responsible for dispatching troopers assigned to their specific district. For example, if a traffic collision occurred in the district covered by Troop A, only an officer from Troop A would be sent to the scene—even if an officer in Troop B was 20 miles closer.

Captain Ronnie Hampton has been helping to spearhead the use of GIS technology at the OHP.

"Prior to the [launch] of Workforce, [the dispatchers] would never have known that unit [in another district] was even working because they were focused on their own troop areas," Hampton said.

Now, dispatchers can summon anyone on staff—from a marine enforcement officer to OHP chief Ricky G. Adams—to respond to an incident based on their present location. "Our chief requires everybody, including himself, to use Workforce as they commute to work," Hampton said. "So, everyone in the entire agency is an assignable asset. [Adams] is very much a champion of technology and keeping people safer."

Last year, OHP conducted a 90-day test to find out how many hours and miles in travel time would be saved by using Workforce for ArcGIS to make dispatch decisions. In responding to 28 collisions and 23 cases where motorists needed assistance, the test showed a savings of 889 miles and 14 hours in travel time, Hampton said. "Mileage is a savings of fuel. Hours [saved mean] a quicker response for the public," he said.

The greatest benefit for Oklahomans is the faster response times, especially in rural areas, Hampton said. "The people that benefit from this are the public, by being able to have someone at the scene in 3 or 4 minutes versus . . . 45 or 50 minutes," he said. "That's where your hours of savings come in."

Following the test's success, OHP made Workforce for ArcGIS and ArcGIS Online available to all troopers last August. All officers downloaded the app onto their OHP-issued Samsung Galaxy S5 smartphones, via the Google Play store. (The app is also available from the Apple App Store and Amazon.)

Officers also can see the locations of their colleagues using a Trooper Map in their patrol cars. Application designed by Christopher L Rogers, Oklahoma Department of Public Safety.

Today, staff in all 13 communications centers use one comprehensive statewide Dispatch Map in ArcGIS Online to keep track of the officers' locations. The dispatchers can use the built-in Near Me widget to find the officer closest to the scene of an incident. They also can turn on layers in the map to obtain weather information; traffic conditions; and the locations and phone numbers of police, fire, and ambulance stations.

To create the Dispatch Map, the feature data service layer from Workforce for ArcGIS that contains the officers' locations and the green icons was added to ArcGIS Online. Widgets such as Near Me, Basemap Gallery, Filter, Legend, and Measurement were added using Web App Builder for ArcGIS. Weather data from the National Oceanographic and Atmospheric Administration (NOAA) also was brought in, along with traffic information from Esri's World Traffic Service. The GPS coordinates for police, fire, and ambulance agencies in Oklahoma and contact information, such as the phone numbers for each agency, were also added to the map.

Most of the information and capabilities in the Dispatch Map are available to on-duty officers using the Trooper Field Map in ArcGIS Online, accessible via computers mounted in their patrol cars. The troopers also have access to useful links on the toolbar, so they can retrieve information on court dates, for instance, for each of Oklahoma's 77 counties.

OHP also uses Esri Story Maps apps to tell stories about important issues such as motorcycle safety. Story map created by Amy Graham, Oklahoma Highway Safety Office.

Troopers also can use tools in ArcGIS Online to set up buffer zones after an accident. For example, a trucker suffered a heart attack and crashed his vehicle into the beam of a highway underpass, causing a sulfuric acid spill, Hampton said. An OHP lieutenant on the scene used the Create Buffers tool to establish a zone with a half-mile radius around the incident. He then shared the map with colleagues so they could block off the area to traffic and onlookers.

Workforce for ArcGIS and ArcGIS Online also are providing situational awareness for OHP officers. During the pursuit of a suspect on a rural road, a trooper on duty 80 miles away, in another county, could see where the pursuing officer was located on the Trooper Field Map. When the trooper turned on satellite view, he noticed that the officer was coming up to a T-intersection and radioed him a warning to slow down. After the suspect veered off into a cow pasture, the trooper from the other county told the pursuing officers where there were openings in the pasture's fencing that they needed to blockade. "[The trooper] knew where the likely escape points were," said Hampton, adding, "We caught that guy."

Hampton said ArcGIS Online and Workforce for ArcGIS are being embraced in his department, especially by the younger officers who grew up with technology. "I've had other police agencies ask, 'How do your troopers feel about people being able to see [their location on a map]?' Some of our older troopers were resistant at first, but our younger troopers are super excited," Hampton said. "It used to be, we had to rely on that person who needed help to give out his physical location. Now, all he has to do is say, 'I need help,' and everybody can see where he's at."

OHP also is putting other Esri technology to good use for public safety, including Esri Story Maps apps. One story map created by the law enforcement agency showed where in Oklahoma motorcyclists had been killed or injured in 2015, and it presented statistics on how many of the riders killed or severely injured had been wearing helmets. Fifty-six percent of the people killed in 2015 in motorcycle accidents were not wearing helmets, according to the story map.

OHP plans to dispatch drones to capture imagery of traffic accident scenes, which would reduce the amount of time roads are closed due to investigations.

Story maps also may be used in the future to document homicide cases that stem from traffic collisions caused by people driving while intoxicated, Hampton said. "Fast-forward a year, and the [district attorney (DA)] may be in trial and has to explain to the jury what has happened," he said. "If we start collecting information from the time the 911 call comes in, and we document everything in story maps, then it's easier for our investigator to present a case to the DA with little to no effort because [all the information] is there. Then the DA can take…that [story] and present it to the jury."

In the coming months, OHP also plans to process imagery from some traffic collision scenes using Esri's Drone2Map for ArcGIS. Hampton said that OHP plans to initially acquire 13 drones to capture imagery of accidents that block busy roads. "We can't control cleanup, but we can control how much time we keep the road closed [while] doing the accident reconstruction," Hampton said. Rather than walking the scene and taking photos and measurements, the drone would take images of the accident aftermath. "With a drone, we can thoroughly document and collect video and photographs of a crash scene in about six minutes," he said.

OHP would use Drone2Map for ArcGIS to process the imagery and create products for use in investigations and, if necessary, court cases. "We can take a frame of a video and produce a two-dimensional picture. We can take still photography we shot with the drone and produce the two-dimensional picture," Hampton said. "If that case needs to go to court or if we want to revisit the scene the way we found it later, now we can watch the video of what we flew two years ago. If that case ends up being prosecutable, one of the things Drone2Map allows us to do is to create a 3D model. [You may] have seen these CSI [crime scene investigation] shows where they are walking a jury through an animation. Why animate something when you can actually take them back and let them fly through the scene?"