Caribbean Air Connectivity Index — data notes
=============================================

Reference week : 2026-10-19 (Mon 19 – Sun 25 Oct 2026)
IATA season    : S26 (late S26)
Method version : v0.2
Licence        : CC BY-NC 4.0
Creator        : Destinito (destinito.com)

WHAT THESE FILES CONTAIN
Destinito's own aggregates. Schedule data is sourced from AeroDataBox; its raw
flight rows are not redistributed and are purged after aggregation, so no file
here contains flight-by-flight provider data.

  island_week_20261019.csv     one row per island: departures,
                                  destinations, airlines, seats by market,
                                  the seat-method mix and both gates.
  route_week_20261019.csv      one row per origin, destination and
                                  airline.
  scores_20261019.csv          connectivity and regional scores,
                                  with both ranks.
  gateway_reach_20261019.csv   same-day reach via a cluster gateway.
                                  Only the gateway-cluster islands have rows.
  load_factors_by_island_month.csv
                                  passengers against seats, MONTHLY and
                                  historical. These do NOT describe the
                                  reference week; see Period and Source.

No low-versus-peak file: this edition measures one week, and a comparison
file of a single week would be a column of zeros reading as no seasonal
variation. The peak week is collected separately.

Resilience measures shown on the website (carrier concentration, route
redundancy, gateway dependence) are derived from route_week and are not a
separate file - they can be recomputed from it exactly.

SEATS ARE ESTIMATES
The schedule feed carries no seat count and, on the direct API, no aircraft type
code. Seats are therefore estimated per departure by one of four methods, and the
mix is disclosed per island in island_week:
  Model             aircraft model string matched to a seat rule
  RouteOverride     a hand-entered timetable figure for that airline and route
  AirportConstraint the airport physically cannot take anything larger (SBH, SAB)
  AirlineDefault    a confirmed per-carrier typical figure
  Unknown           no estimate. Contributes ZERO seats — never a route average.

An island publishes seat figures only when at least 95.00% of its
departures carry one of the first four. Below that, seat columns read "n/a".
Departures, destination counts and airline counts are complete data and are
published regardless.

SCORES
Scores use all five components, including estimated seats.

Scores are RELATIVE within this island set: each component is scaled so the
week's leader scores 100. A score is not an absolute rating, and adding or
removing an island changes every other island's number.

EXCLUSIONS
  - Departures only. Cargo, private flights and marketing-codeshare duplicates
    are excluded.
  - Flights between two airports on the SAME island are excluded (SXM/SFG,
    UVF/SLU, PUJ/SDQ, MBJ/KIN).
  - Rows whose destination could not be named are excluded from route figures
    and counted; an island publishes only when they are at most
    1.00% of its departures.
  - Puerto Rico, the US Virgin Islands, Guyana, Suriname and Belize are
    classified CARIBBEAN, on geography and CARICOM membership respectively.

PER-ISLAND GATE OUTCOMES
  ANU: 124 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 98.39% PASS
  AUA: 259 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  AXA: 44 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  BGI: 220 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  BON: 108 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  CUR: 277 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  DOM: 65 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  EIS: 112 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  EUX: 22 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  FDF: 113 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  GCM: 125 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  GND: 55 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  MBJ: 290 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  NAS: 387 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  NEV: 44 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  PLS: 194 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  POS: 276 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  PTP: 153 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  PUJ: 862 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  SAB: 22 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  SBH: 269 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  SJU: 941 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  SKB: 90 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  STT: 192 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  STX: 92 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  SVD: 60 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  SXM: 433 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS
  UVF: 89 deps · unresolved 0% (0 unknown + 0 ambiguous) PASS · seats 100% PASS

HOW TO CITE
Destinito, "Caribbean Air Connectivity Index", reference week 2026-10-19
(S26), method v0.2. https://destinito.com/research/caribbean-air-connectivity/
