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A ground stop is a common safety procedure used by the Federal Aviation Administration (FAA) to control air traffic volume. It is considered one of the most restrictive methods of traffic management, as it requires aircraft that meet specific criteria to remain on the ground at their origination airport. Ground stops can be implemented for a variety of reasons, including weather conditions, technical difficulties, security incidents, and air traffic volume. They can affect a single airport, an entire region, or even an entire nation, depending on the circumstances. Ground stops can cause delays or cancellations for flights, impacting both passengers and pilots.
| Characteristics | Values |
|---|---|
| Purpose | To slow or halt air traffic at an airport, within a designated airspace, or for specific aircraft |
| Implementation | Issued by the Federal Aviation Administration (FAA) via the Air Traffic Control System Command Center (ATCSCC) |
| Scope | Can be airport-specific, related to a geographical area, or equipment-related |
| Impact | Leads to delays, rerouting, or cancellations of flights |
| Causes | Weather, technical difficulties, operational events, security incidents, etc. |
| Duration | Can range from 15 minutes to several days, with an average of 1-3 hours |
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What You'll Learn
- Ground stops are a common safety tool to control air traffic volume
- They can be implemented for a single airport or an entire region
- Ground stops are issued by the Federal Aviation Administration (FAA)
- Weather is the most common reason for a ground stop
- Ground stops can last anywhere from 15 minutes to several days
Ground stops are a common safety tool to control air traffic volume
Ground stops are a common safety tool used by the Federal Aviation Administration (FAA) to control air traffic volume. They are considered to be the most restrictive of traffic management initiatives, and are implemented when air traffic control is unable to safely accommodate additional aircraft in the system.
Ground stops are typically not planned in advance but are used reactively as conditions warrant. They can be applied to a single airport, a specific airline, or an entire region, depending on the reason for the stop. For example, a ground stop halted all Alaska Airlines flights in April 2024 when a software upgrade disrupted the system that calculates a plane's weight and balance.
Ground stops are usually issued for a short duration, ranging from 15 minutes to 30 minutes. During this time, aircraft that meet specific criteria are required to remain on the ground at their origination airport. The criteria could be related to the airport, equipment, or airspace, depending on the event that caused the ground stop. For instance, if there is a thunderstorm approaching an airport, air traffic control may implement a short-term ground stop to prevent aircraft from taking off or landing during the storm.
Ground stops can have cascading effects on flight schedules, leading to delays or cancellations. They are often implemented due to weather conditions, but other reasons include traffic volume, construction, VIP movements, security incidents, and special events. While ground stops can be frustrating for passengers, they are an essential safety measure to ensure the safe and efficient management of air traffic.
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They can be implemented for a single airport or an entire region
A ground stop is a tool to control air traffic, and when enacted, it leads to delays. It is a measure to slow or halt air traffic at an airport, within a designated airspace, or for specific aircraft. Ground stops are issued by the Federal Aviation Administration (FAA) Air Traffic Control System Command Center (ATCSCC), which oversees air traffic control nationwide.
Ground stops can be implemented for a single airport or an entire region, depending on the reason for the ground stop. In rare circumstances, a nationwide ground stop can be issued. For example, on 9/11, the FAA issued a ground stop for the entire United States as a precaution against possible additional terrorist attacks by airplane.
Ground stops are most commonly issued due to weather conditions. They can also be issued due to operational events, such as computer outages, or other hazards. When a ground stop is implemented, traffic managers must decide which flights will be captured in the stop. This is referred to as the scope of the ground stop, which can be defined by distance, by center, or by tier.
Ground stops can last anywhere from 15 minutes to several days, with an average duration of 1-3 hours. During this time, flights may be rerouted, delayed, or canceled.
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Ground stops are issued by the Federal Aviation Administration (FAA)
Ground stops are issued by the FAA's Air Traffic Control System Command Center (ATCSCC or ATSSC), which oversees air traffic control nationwide. The ATCSCC coordinates with the local ATC Tower to distribute an alert to the airports and airlines affected by the ground stop. The scope of a ground stop can vary, from being airport-specific to applying to an entire region, and in rare circumstances, a nationwide ground stop may be issued.
Ground stops are typically enacted for safety reasons, such as adverse weather conditions, technical issues, or security incidents. For example, ground stops may be implemented during storms or when an airport is affected by fog, extreme cold, or smoke haze. In some cases, ground stops may be related to equipment issues, such as software upgrades or system failures.
Ground stops can also be implemented due to high traffic volume, construction, or VIP movements. When a ground stop is in effect, planes are not allowed to take off from their departure airport if they are scheduled to arrive at the affected airport during the ground stop's duration. This can cause downstream effects, leading to flight delays or cancellations and disrupting the movement of planes and flight crews.
Ground stops are usually not planned in advance but are used reactively as conditions warrant. Each ground stop is given an update time, at which it will be re-evaluated and either extended or cancelled. The FAA provides information about ground stops through its Operational Information System (OIS), including the likelihood of extension.
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Weather is the most common reason for a ground stop
A ground stop is a traffic management initiative that requires aircraft meeting specific criteria to remain on the ground at their origination airport. Ground stops are considered to be the most restrictive of the traffic management initiatives. They are implemented when air traffic control is unable to safely accommodate additional aircraft in the system.
Ground stops can also be implemented for other reasons, such as operational events (e.g., a computer outage), traffic volume, construction, VIP movements, security incidents, or special events. However, weather remains the primary cause of ground stops and the resulting flight delays.
When a ground stop is issued, it includes an update time, during which the conditions will be re-evaluated. If the conditions have improved, the ground stop is cancelled, and aircraft are allowed to depart. If the conditions remain unfavorable, the ground stop is extended, and flights may continue to be delayed or even cancelled.
It is important to note that ground stops can have cascading effects on flight schedules. They can lead to subsequent disruptions, as pilots and flight crew may be unable to reach their assigned aircraft on time, impacting multiple flights throughout the day.
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Ground stops can last anywhere from 15 minutes to several days
A ground stop is a tool to control air traffic, and when one is enacted, it leads to delays. It is a measure to slow or halt air traffic at an airport, within a designated airspace, or for specific aircraft. Ground stops are issued by the Federal Aviation Administration (FAA) Air Traffic Control System Command Center (ATCSCC), which oversees air traffic control nationwide.
Ground stops are usually not planned in advance but are used reactively as conditions warrant. They are most commonly used for flights arriving at an airport from a relatively short distance. In cases where the reason for the stop is expected to continue for an extended period, ground stops are typically replaced with a longer-duration ground delay program (GDP).
Ground stops are considered one of the most restrictive traffic management initiatives. They are implemented when air traffic control is unable to safely accommodate additional aircraft in the system. When a ground stop is in effect, aircraft that meet specific criteria are required to remain on the ground. These criteria may be airport-specific, related to a geographical area, or equipment-related.
Ground stops can be caused by various factors, including weather, technical difficulties, runway changes, and security issues. Weather is the most common reason for ground stops, with air traffic control issuing them when routings become saturated or an airport is unable to handle more flights due to inclement weather.
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Frequently asked questions
A ground hold, or ground stop, is a safety procedure used by air traffic control to manage traffic volume. It requires aircraft that meet specific criteria to remain on the ground, slowing or halting the flow of aircraft to a given airport.
There are many reasons for a ground hold, including weather, technical issues, staffing shortages, security incidents, and equipment problems.
Ground holds can last anywhere from 15 minutes to several days. On average, they last between 1-3 hours.
During a ground hold, flights may be rerouted, delayed, or canceled. This can affect flights en route and those yet to depart. Ground holds can also impact subsequent flights if crew members become unavailable due to delays.
If your flight is affected by a ground hold, it is important to stay updated through your airline's app or website. Although ground holds can be lifted quickly, they may also be extended depending on the situation.
