ST. PAUL, Minn. — St. Paul Public Schools’ transportation department has benefitted on several levels from installing GPS devices on its 300 buses.

The operation tested a system for a year with a handful of buses and then decided last year to purchase the product for its entire fleet, the Star Tribune reports.

Transportation Director Harold Turnquist told the newspaper that initially, drivers were concerned that the information tracked by the system would be used against them, but in recent months, the department’s supervisors have used the information to diffuse disputes between parents and drivers.

"It gives us a medium to access where the bus is located at all times," Turnquist added. "If we get a parent that says we missed a stop, we know immediately if that's in fact true."

Moreover, St. Paul Public Schools Transportation Coordinator Gary Cox used the GPS program to track a new driver who had gotten lost the day before, the Star Tribune reports. If a driver gets lost, supervisors are notified so they can get them back on track.