 week we're using predictive analytics fire chief tiffany green says they know when crews are busier we're putting peak units in certain areas we're putting a peak unit in greenbelt for example because we know during a certain time time call there's going to be more ems calls and we want to have an ems unit available to run those calls john dome and wtlp news prince johnny prince george's county officials say they're currently operating 251 career firefighters short of full staff but they plan to hire 150 new firefighters in 2025 as part of a