Lois Larson
A ground stop is an air traffic control procedure that requires aircraft that meet certain criteria to remain on the ground. It is a safety measure that slows or halts the flow of aircraft to a given airport. Ground stops are implemented based on various conditions specific to the flights, such as weather, traffic volume, construction, VIP movements, security incidents, or equipment outages. They can have cascading effects on flight schedules, causing delays or cancellations, and can be airport-specific or related to a particular geographical area.
| Characteristics | Values |
|---|---|
| Definition | An air traffic control procedure that requires aircraft meeting certain criteria to remain on the ground. |
| Causes | Operational events (e.g., computer outages), weather (e.g., thunderstorms, wind shear, hail), security incidents, equipment issues, safety concerns, or other hazards. |
| Scope | Can be airport-specific, equipment-specific, airspace-specific, or geographical area-specific. |
| Impact | Delays or cancellations of flights, disruption to flight crew schedules, and downstream effects on other airports and flights. |
| Duration | Typically 30 minutes to an hour, but can be extended if necessary. |
| Examples | Newark Liberty International Airport, Toronto Pearson, LaGuardia Airport, Dallas-Fort Worth International Airport, Philadelphia International Airport. |
Explore related products
What You'll Learn
- Ground stops are a safety tool to control air traffic volume
- They can be airport-specific, equipment-specific, or airspace-specific
- Ground stops are often caused by severe weather
- They can also be caused by operational events, like computer outages
- Ground stops can have cascading effects on flight schedules, including delays and cancellations
Ground stops are a safety tool to control air traffic volume
Ground stops are a safety tool used by the Federal Aviation Administration (FAA) to control air traffic volume. They are implemented in response to various conditions, such as weather, traffic volume, construction, VIP movements, security incidents, and equipment outages. For example, ground stops may be called due to thunderstorms, wind shear, hail, or other hazardous weather conditions. They can also be implemented during operational events, such as computer outages or staffing shortages. The aim of a ground stop is to increase aviation safety by minimizing flight risks associated with aircraft movements at or around airports.
Ground stops can have cascading effects on flight schedules, causing delays or cancellations. During a ground stop, aircraft that meet certain criteria are required to remain on the ground. These criteria can be specific to the airport, geographical area, environment, or equipment. For instance, a ground stop at Newark Liberty International Airport would mean that aircraft departing for Newark from other airports will not receive departure clearance until the ground stop is lifted. This allows the airport to manage any ongoing issues and prepare for arriving aircraft once the stop is lifted.
The scope of a ground stop may be determined based on distance from a specific airport, the Air Route Traffic Control Center (ARTCC), or geographical area defined by ARTCC boundaries. For example, a ground stop with a scope of "800 miles+ CZY" would include all flights originating within 800 miles of Toronto Center (CZY). Distance is a precise way to define the scope, allowing traffic managers to effectively control and plan flights within the given range. Ground stops can also be tiered, with the first tier affecting airports within a short distance, the second tier impacting departures from specific regions, and the third tier halting all inbound planes.
Ground stops are typically implemented by the Air Traffic Control (ATC) due to airport capacity constraints. Safe aircraft accommodation can become challenging during peak times, and ground stops help manage this by slowing or halting the flow of aircraft to a given airport. While ground stops can cause disruptions, they are an essential tool for maintaining safety and managing air traffic volume, especially during unexpected events or challenging conditions.
Edinburgh Airport Shopping: What's Available Before Your Flight?
You may want to see also
Explore related products
They can be airport-specific, equipment-specific, or airspace-specific
A ground stop is an air traffic control procedure that requires aircraft that fit certain criteria to remain on the ground. This could be airport-specific, equipment-specific, or airspace-specific.
Ground stops are often implemented to manage air traffic volume and increase aviation safety. They can be the result of various factors, including airport gridlocks, airborne holding, saturation levels, weather, traffic volume, construction, VIP movements, security incidents, and equipment outages.
For example, if a ground stop is called for a specific airport, aircraft departing for that airport from other locations will not be given departure clearance until the ground stop is lifted. This allows the affected airport to address any issues and prepare for arriving aircraft once the ground stop is lifted.
Ground stops can have cascading effects on flight schedules, causing delays or cancellations for both departing and arriving flights. They can also impact the availability of pilots and flight crew, leading to further disruptions and subsequent flight delays or cancellations.
The Federal Aviation Administration (FAA) in the United States is responsible for issuing ground stops, and they can be implemented for a specific airport or a broader geographic area, depending on the nature of the event that triggered the ground stop.
French Airport Workers: Strikes and Travel Chaos
You may want to see also
Explore related products
Ground stops are often caused by severe weather
A ground stop is an air traffic control procedure that requires aircraft meeting specific criteria to remain on the ground. Ground stops are often caused by severe weather, such as thunderstorms, wind shear, hail, and tornadoes. These weather events can cause significant delays and cancellations, impacting thousands of passengers. For example, in March 2025, severe weather in Illinois led to ground stops at Chicago's O'Hare and Midway airports, two of the busiest airports in the United States.
Thunderstorms and severe storms can bring dangerous conditions such as hail, gusty winds, and lightning, making it unsafe for aircraft to take off or land. In such cases, ground stops are implemented to ensure the safety of passengers, crew, and ground staff. During a ground stop, departing flights to the affected airport are halted, and arriving flights may be diverted to alternate airports until the severe weather clears.
Ground stops due to severe weather can have cascading effects on flight schedules, causing delays and cancellations that ripple through the aviation system. As pilots and flight crews may be unable to reach their assigned aircraft on time, subsequent flights may also be impacted, leading to further disruptions. Severe weather can also affect multiple airports simultaneously, exacerbating the downstream effects on air traffic.
In addition to thunderstorms and severe storms, other weather phenomena can also trigger ground stops. For instance, in 2023, a ground stop was issued at LaGuardia International Airport in New York City due to extreme smoke haze from Canadian wildfires. Similarly, in 2014, extreme cold weather caused a ground stop at Toronto Pearson Airport due to equipment freezing and safety concerns for employees.
While ground stops due to severe weather are necessary for safety, they can cause significant disruptions to air travel. To mitigate these impacts, strategic traffic flow management and severe weather avoidance plans are implemented to reroute flights and manage demand. These measures aim to minimize delays and ensure the safe and efficient operation of the aviation system during severe weather events.
Charlotte Airport: Which State Does CLT Call Home?
You may want to see also
Explore related products
They can also be caused by operational events, like computer outages
A ground stop is an air traffic control procedure that requires aircraft meeting certain criteria to remain on the ground. This could be due to operational events, such as computer outages, or adverse weather conditions.
Operational events, such as computer outages, can cause significant disruptions to airport operations. These outages can be caused by a variety of factors, including software updates, technical faults, or issues with cloud computing services. For example, in July 2024, a mass IT outage caused by a faulty update affected Windows PCs, leading to delays at Berlin's Brandenburg Airport and disruptions at 46 airports in Spain managed by Aena. Similarly, in 2023, Delta, American, and United Airlines experienced global ground stops due to worldwide computer systems outages.
Computer outages can impact various airport systems, including those used for checking in customers, calculating aircraft weight, and phone systems in call centers. These disruptions can have cascading effects on flight schedules, causing delays and cancellations. As a result, pilots and flight crews may be unable to reach their assigned aircraft on time, leading to further disruptions and affecting subsequent flights.
To mitigate the impact of computer outages, airports and airlines may issue travel waivers, advise passengers to check their flight status directly with their carrier, or provide alternative means of checking in, such as in-person or self-service kiosks. Additionally, cybersecurity companies may provide software updates or patches to fix the issues and restore affected systems.
Miami Airport: Luggage Lockers Availability and Options
You may want to see also
Explore related products
Ground stops can have cascading effects on flight schedules, including delays and cancellations
Ground stops are an air traffic control procedure that requires aircraft meeting specific criteria to remain on the ground. These criteria could be airport-specific, equipment-specific, or related to a particular geographical area. Ground stops are implemented to manage air traffic volume and increase aviation safety by minimising flight risks.
When a ground stop is called for a particular airport, aircraft departing for that airport from other locations will not be given clearance to leave until the ground stop is lifted. This allows the affected airport to deal with the task at hand and prepare for arriving aircraft once the ground stop is over.
Ground stops can be caused by a variety of factors, including weather conditions, traffic volume, construction, security incidents, equipment outages, and airport capacity. For example, ground stops may be implemented during thunderstorms, hail, tornadoes, or other severe weather events. They can also occur due to operational events, such as computer outages or staffing shortages.
The cascading effects of a ground stop can lead to significant disruptions in flight schedules, resulting in delays and cancellations. Pilots and flight crew may be unable to reach their assigned aircraft on time, causing a domino effect of subsequent delays or cancellations on their next scheduled flights.
The impact of ground stops can vary depending on the tier system in place. A first-tier ground stop affects airports within a short distance, while a second-tier ground stop impacts air traffic departing from specific regions. A third-tier ground stop is typically implemented for all planes inbound to a major airport, usually due to significant events that greatly impact airport operations, such as recovery from extreme weather.
MSP Airport's COVID Testing: What You Need to Know
You may want to see also
Frequently asked questions
A ground stop is an air traffic control procedure that requires aircraft that fit certain criteria to remain on the ground. This could be due to factors like airport gridlocks, airborne holding, saturation levels, weather, traffic volume, construction, VIP movements, security incidents, equipment outages, or other hazards.
Ground stops are implemented based on various conditions specific to the flights and airports. When a ground stop is called, aircraft departing for the affected airport will not be given departure clearance until the ground stop is lifted.
There is a three-tier ground stop system. The first tier affects airports within a short distance from the affected airport. The second tier is for any air traffic departing out of specific areas, such as Boston, Cleveland, and Atlanta. The third tier is a stop to all planes inbound for a specific airport, usually due to major events that greatly impact airport operations.
Some examples of ground stops include the one issued by the FAA on the east coast of the Carolinas in 2023 due to the Chinese balloon incident, and the ground stop at LaGuardia International Airport in New York City in 2023 due to extreme smoke haze from Canadian wildfires. Ground stops were also implemented at Dallas-Fort Worth International Airport and Philadelphia International Airport due to severe weather and cloud cover, respectively.
