The Federal Aviation Administration said Wednesday that it plans to upgrade the technology used to get radar data to air traffic controllers directing planes to the troubled Newark, New Jersey, airport, and improve staffing to alleviate problems that have caused hundreds of flights to be canceled there.

Air-traffic controllers in Philadelphia manage the complex, busy airspace surrounding Newark. Their system for processing radar data is based in New York.The FAA said

The FAA says it's taking immediate steps to alleviate the delays at Newark Airport​ that began more than a week ago​.