TTDI Family-Friendliness Index
TTDI Family-Friendliness Index — methodology
Ranked from TTDI editorial judgments — each city's score is grounded in cited authoritative sources and reviewed under TTDI's audit gates.
The ranked metric
Each city carries a 0–10 family-friendliness score: an editorial judgment grounded in cited authoritative sources, produced under a method that records at least one source and a written basis per score, and leaves the score empty rather than guessing when sources are insufficient. Cities are ranked by this score alone — auxiliary signals (how much family content a city has) are deliberately excluded from the rank because folding them in would require invented blend weights.
What the score is not
It is not a survey, not a statistical composite, and not a guarantee — it is a disclosed editorial judgment, applied with the same method to every city in the universe, which is what makes the ranking comparable.
The universe
Each edition ranks every city TTDI covered at the moment the edition was cut — the cities whose pages we publish and stand behind. The universe size is stated on every edition; an edition is never cut over fewer than 12 qualifying cities. As coverage grows, later editions rank more cities.
How ranks are assigned
Ranks are competition-style: cities with equal values share a rank, and the next distinct value resumes at its ordinal position (1, 2, 2, 4). We never separate tied cities alphabetically — a tie is reported as a tie.
Editions are frozen
Every edition is a frozen snapshot: once published, its ranking never changes, so a citation of this edition stays accurate. Updates ship as new editions at their own URLs; prior years remain available.