Weather, runways & winds — the forecast and what this field usually does
Pattern density — who is actually in the pattern
Aircraft seen inside the pattern from ADS-B position reports, and how many were in
there at once. A trainer flying ten laps adds nothing to the arrival count — those are pattern laps,
not arrivals — but it's an hour of company, which is what this chart catches and the arrival counts miss.
How the pattern box is drawn, and how to read a cell
The box is each runway widened 1.5 nm to both sides, extended 1.5 nm past each
threshold and 2,000 ft AGL deep. Touch-and-go ground rolls count — rolling fast on the runway
is pattern work, a slow taxi isn't. Darker cells mean more aircraft sharing the pattern at the same
time. Hover a cell for the breakdown above the chart; clicking one opens that hour's flights
(a day label opens the whole day). On a touchscreen the first tap shows the breakdown — the button
beside it, or a second tap, opens the flights. All hours are airport-local (DST-aware).
Where the traffic actually flew
The traffic the network heard at this field over the window — its arrivals,
departures and patterns. For a field nothing was detected at, it falls back to whatever was
transiting nearby instead. Vivid lines are low (patterns and approaches), faint lines are
higher. Open it with open map in the details up top.
lowhigh
Every flight counted in this hour — click a row for its track.
Busiest hours of the week, jets counted heavier
Each cell is one day-hour. The more arrivals, the darker — and the big fast ones count
for several light singles, so one airliner darkens a cell about as much as a dozen light-single
landings. Faint cells are hours you would have the field to yourself.
How the shading is worked out
Each arrival counts more the worse it mixes with a light single: airliners and military ×3,
regional jets ×2.5, bizjets ×1.5, turboprops ×0.75, pistons ×0.25. Hover a cell for the breakdown
above the chart and click it for that hour's flights; on a touchscreen the first tap shows the
breakdown and the button beside it opens the flights. All hours are airport-local (DST-aware).
Arrivals per hour of day, by aircraft class
Average arrivals per clock hour across the window. Jets stack from the
baseline (blue → green), prop traffic on top (violet → pink).
Regional jet — the smaller airline jets: E175, CRJ family.
Bizjet — business jets: Citations, Gulfstreams, Phenoms, Learjets.
Military / tanker — tankers, transports, and anything on a military callsign.
Turboprop — King Air, PC-12, Caravan, TBM and friends.
Piston — trainers and personal props: 172s, Cherokees, Cirrus.
Helo / other — helicopters, plus aircraft that broadcast no usable type.
Day by day
Total arrivals per day, same class stacking — spot which weekday runs hottest.
Traffic over the long run
Every day this airport has been processed, as far back as the archive goes.
Window
Count
Bucket
Approaches flown — how arrivals got to each runway
ADS-B can't hear clearances, so these are tracks consistent with a published
approach, matched against FAA CIFP procedure geometry. Picking a bar (or a line in the tree below
it) lists those arrivals.
How a track is matched to an approach
A named bar ("RNAV Y 28L") means the track crossed a fix unique to that procedure.
"Straight-in (plate unidentified)" means it flew the final like a procedure, but an ILS, an RNAV
and a long visual straight-in down the same line look identical from here — hover or tap the bar to
see which plates it could have been. Pattern circuits and short visual finals go in
"visual/pattern"; helicopters are counted separately.
Window
Include
Data table — average arrivals per hour
Transitioning the overlying airspacealpha
A rough, early feature — it still needs work before the signal separates cleanly from the noise. Use it with caution.