Northeast Corridor FAA Delay & Cascade Planner
When an FAA telecommunications or ERAM radar equipment outage throttles arrivals at major Northeast hubs (JFK, EWR, LGA, BOS, PHL), delays compound geometrically across turnaround tails. Model ground stops, slot rationing, and passenger connection drop-off in real time.
Understanding FAA Outages & Cascade Mechanics
How equipment failures at ARTCC facilities cascade across the National Airspace System (NAS).
1. ERAM & Center Radar Failures
The En Route Automation Modernization (ERAM) system at Air Route Traffic Control Centers (like ZNY New York or ZBW Boston) coordinates high-altitude separation. A telecommunications or processor outage forces controllers to widen aircraft radar separation from 5 miles to 15–20 miles, slashing hourly arrival capacity by up to 70%.
2. Ground Stops vs. Ground Delay Programs (GDP)
Under a Ground Stop (GS), no origin aircraft bound for the affected airport can take off. Under a Ground Delay Program (GDP), flights receive an Expect Departure Clearance Time (EDCT) assigning a delayed takeoff slot to absorb the delay on the ramp rather than burning fuel in airborne holding patterns.
3. Downline Turnaround Propagation
Commercial airliners fly 4 to 6 legs per day. When an aircraft arriving from Boston or New York is delayed by 90 minutes with only a 45-minute scheduled ground turn, that delay propagates into the next leg (e.g., to Miami or Orlando), causing crew duty-hour timeouts and stranded connecting bags.