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TUNES — Transit User Noise Experience Survey

Decision log

Template for programme-level decisions. Detailed rationale lives in ADRs under docs/machine/decisions/.

IDDateDecisionStatusADR
D-0012026-07-17London pilot prioritises selected Underground lines; schema stays portableAcceptedADR-001
D-0022026-07-17Generic railway core schema; London as network profileAcceptedADR-002
D-0032026-07-17Three repositories: tunes, tunes-ios, tunes-webAcceptedADR-003
D-0042026-07-17Raw audio does not leave device by defaultAcceptedADR-004
D-0052026-07-17Derived-only contribution defaultAcceptedADR-005
D-0062026-07-17Quality tiers A–E (working); survey-grade honestyAcceptedADR-006
D-0072026-07-17Watch/AirPods out of v1; experiment backlogAcceptedADR-007
D-0082026-07-17Voice Memos/imports Tier D if accepted; optional for v1AcceptedADR-008
D-0092026-07-17Minimise manual metadata; optional chips post-recordingAcceptedADR-009
D-0102026-07-17Subjective survey after journey; separate from objectiveAcceptedADR-010
D-0112026-07-17Strict claim language; no unsupported risk/health claimsAcceptedADR-011
D-0122026-07-17Provisional MIT (code) + CC BY 4.0 (docs/data)Accepted provisionalADR-012
D-0132026-07-20Named controller(s); informal → CLG by launch; CIC later optionalAccepted provisionalADR-013
D-SEC2026-07-17Canonical unit = station-to-station section with durationAcceptedArchitecture + R2/R6
D-AFFIL2026-07-17No implied TfL endorsementAcceptedCharter

How to add an entry

  1. Write or update an ADR in docs/machine/decisions/
  2. Add a row here: Proposed / Accepted / Superseded / Rejected
  3. Link related research docs

Brief questions — disposition

Brief #Disposition
1ADR-001 (pilot Underground-first; launch breadth deferred)
2ADR-002
3ADR-003 (closed)
4–5ADR-004 / ADR-005
6ADR-006
7ADR-007
8ADR-008
9ADR-009
10ADR-010
11ADR-011
12ADR-012 (legal still required before publish)
13ADR-013 (named pre-incorporation controller; CLG by launch)