Claim language checklist (ADR-011)

Status: Draft — use before map, press, or marketing copy ships
Version: 0.1.0-draft
Last-updated: 2026-07-20

Tick before publishing user-facing claims:

• Prefer precise acoustic terms (e.g. LAeq,T, ranges, sample counts, quality tier)
• “Discomfort” only when referring to subjective survey answers
• No “acoustic risk”, health harm, or regulatory exposure/compliance claims for crowd data
• “Quieter journey” is comparative within dataset limits, with uncertainty shown
• No implied TfL operation, approval, or endorsement
• Survey-grade / not Class 1 stated where users might over-read precision
• Sparse sections not presented as definitive rankings
• Objective metrics and subjective responses not blended into one unexplained score

Detail: ADR-011 · charter non-affiliation