US aviation safety regulators will allow fewer flights at Newark airport after technology outages and a staffing crunch fueled a surge in delays and cancellations in recent weeks.

Recent technology outages, staffing shortages among air traffic controllers and runway construction have caused significant disruptions and raised concerns about passenger safety.

The interim rule will cap the number of arrivals and departures at Newark Liberty International Airport at 28 apiece per hour. That’s in line with the limits imposed after about half a dozen controllers went on a 45-day trauma leave following the first outage on April 28.