Airspace Ground Stop & Delay Cascade Analyzer
Simulate FAA communications outages across East Coast hub airports (JFK, LGA, EWR, PHL, BOS), calculate slot holds (EDCT), tarmac rule risk, and connection misconnect probabilities with actionable multimodal corridors.
Understanding FAA Ground Stops vs. Ground Delay Programs
When critical radar or radio communications systems fail at key Terminal Radar Approach Control (TRACON) facilities—such as New York TRACON (N90) or New York Center (ZNY)—air traffic control halts all aircraft destined for or departing from affected airports.
Unlike weather slowdowns which use Ground Delay Programs (GDP) to meter arrival rates smoothly, a Ground Stop (GS) immediately freezes departures at their origin gates until backup frequencies or alternate routing can be established.
Passenger Rights & Triage Rules
The DOT 3-Hour Tarmac Delay Rule
Under U.S. Department of Transportation regulations (14 CFR Part 259), U.S. carriers must begin moving an aircraft back to a gate or safe deplaning area before the tarmac delay reaches 3 hours for domestic flights (4 hours for international flights), unless safety or ATC forbids it.
Automated Rebooking Waivers
During systemic FAA communications outages, major domestic airlines issue blanket travel waivers allowing passengers to change origin/destination to nearby co-terminals (e.g., swapping LGA for HPN/SWF or JFK for EWR/PHL) with no fare difference or change penalties.
Amtrak Northeast Corridor Contingency
For intra-corridor connections between Boston, New York, Philadelphia, and Washington D.C., high-speed rail via Moynihan Train Hall / Penn Station offers zero-ground-stop reliability when the East Coast airspace enters complete saturation.