Explanations of signals and sources.
A safety system at the end of a runway, built of crushable material. If an aircraft overruns during landing or takeoff, it is safely decelerated into the material instead of continuing into the terrain beyond.
A specific brand/product line of EMAS, manufactured by Runway Safe.
A more environmentally friendly variant of EMAS technology, also from Runway Safe.
The safety area that is legally required around a runway. If the site isn't large enough for the normal requirement, EMAS can be used as a solution instead.
The same thing as RSA, but the designation used internationally (outside the US).
The US regulatory framework governing safety requirements at commercial airports, including the RSA/EMAS requirement.
An official notice to pilots about temporary changes at an airport, e.g. a closed runway during a construction project.
An airport's long-term development plan, often 10-20 years ahead. If EMAS is mentioned here, actual construction is usually still several years away.
A US federal grant program. Each year the government distributes money to airports for safety and maintenance projects. An awarded AIP grant means the money exists, but not always that construction has already started.
A separate, larger federal grant pool (part of a large 2021 US infrastructure investment), functioning similarly to AIP but its own funding pot.
An airport's own, more short-term investment list (typically 3-5 years). More concrete than a Master Plan, but still a plan, not a completed build.
A technical drawing of how the airport looks and is planned to look. If EMAS appears on a new ALP drawing, that's an early sign that something is underway.
A real, already-awarded federal grant, taken directly from the US government's own public payment register. Higher confidence than a plan, since the money is already allocated.
Official information directly from the US aviation authority (FAA) about what has already been built.
We have found a source that names exactly which company has supplied or will supply the system.
How confident we are that the information is correct, based on how good the source is - not how certain it is that the project will happen.
Score is the same assessment as Confidence, expressed as a number instead of High/Medium/Low - how strong and reliable the evidence behind a signal is. A higher Score means stronger, better-documented evidence - not that the project is more likely to happen, and not the probability that Runway Safe or any other supplier wins an eventual contract. Score replaces neither project phase/status (where the project stands in the process) nor Lifecycle (how current the opportunity is judged to be right now) - a historical, already-concluded event can have a high Score if the evidence is strong, and a current opportunity can have only a moderate Score while the evidence is still thin. When no Score is recorded for a signal, a dash (-) is shown instead of a fabricated number.