# Change digest: 岩宇地域公共交通活性化協議会

Generated: gtfs-semantic-diff 2026.9.22.1 / 2026-10-01T21:22:15+00:00 / digest_schema 1

## 1. Comparison overview

- Old: 7624680b-fb7d-4509-a366-fb473f176b88 20251001–20260930
- New: 8b2db3fe-6089-4420-816d-123eb1f76289 20261001–20270930
- Note: the validity periods do not overlap (versions far apart in time)

## 2. Totals

- Trips per day (by day type): Weekday 10→4 trips, Weekend 6→0 trips, Daily 0→6 trips
- Route pages: 1 (1 changed)
- Explanation ledger: 9907 of 9919 raw diffs explained (explained_ratio 0.9988)

## 3. Events by type

| type | name | count |
|---|---|---|
| AGENCY_INFO_CHANGED | Agency info changed | 1 |
| DAYTYPE_RESTRUCTURED | Day-type structure changed | 1 |
| FARE_CHANGED | Fare changed | 1 |
| FEED_VALIDITY_CHANGED | Feed validity changed | 2 |
| FIRST_LAST_CHANGED | First/last departure changed | 2 |
| HOLIDAY_EXCEPTION_CHANGED | Holiday exceptions changed | 3 |
| SERVICE_INCREASED | Service increased | 6 |
| SERVICE_REDUCED | Service reduced | 12 |
| SHAPE_CHANGED | Route shape changed | 2 |
| TRANSLATION_CHANGED | Translations changed | 1 |
| UNEXPLAINED_RESIDUAL | Unexplained residual | 5 |

## 4. Stop changes

(none)

## 5. Changes by route

### しおかぜライン

- Trips: Weekday 10→4 trips, Weekend 6→0 trips, Daily 0→6 trips
- trip count change: Weekday 10→4 trips, Weekend 6→0 trips, Daily 0→6 trips

Routes without changes: 0 pages

## 6. Changes not tied to a route

- Day-type structure changed: 
- Feed validity changed: changed_rows 2
- Holiday exceptions changed: unknown_window 4, substantive False
- Holiday exceptions changed: unknown_window 37, substantive False
- Holiday exceptions changed: unknown_window 20, substantive False
- Fare changed: fare_rules_diffs 6361, currency JPY, removed_fares [{'fare_id': '1000', 'price': '1000'}, {'fare_id': '1010', 'price': '1010'}, {'fare_id': '1020', 'price': '1020'}, {'fare_id': '1030', 'price': '1030'}, {'fare_id': '1040', 'price': '1040'}, {'fare_id': '1050', 'price': '1050'}, {'fare_id': '1060', 'price': '1060'}, {'fare_id': '1070', 'price': '1070'}, {'fare_id': '1090', 'price': '1090'}, {'fare_id': '1100', 'price': '1100'}, {'fare_id': '1110', 'price': '1110'}, {'fare_id': '1120', 'price': '1120'}, {'fare_id': '1140', 'price': '1140'}, {'fare_id': '1150', 'price': '1150'}, {'fare_id': '1180', 'price': '1180'}, {'fare_id': '1200', 'price': '1200'}, {'fare_id': '200', 'price': '200'}, {'fare_id': '210', 'price': '210'}, {'fare_id': '220', 'price': '220'}, {'fare_id': '230', 'price': '230'}], added_fares [{'fare_id': 'p1000', 'price': '1000'}, {'fare_id': 'p1010', 'price': '1010'}, {'fare_id': 'p1020', 'price': '1020'}, {'fare_id': 'p1030', 'price': '1030'}, {'fare_id': 'p1040', 'price': '1040'}, {'fare_id': 'p1050', 'price': '1050'}, {'fare_id': 'p1060', 'price': '1060'}, {'fare_id': 'p1070', 'price': '1070'}, {'fare_id': 'p1090', 'price': '1090'}, {'fare_id': 'p1100', 'price': '1100'}, {'fare_id': 'p1110', 'price': '1110'}, {'fare_id': 'p1120', 'price': '1120'}, {'fare_id': 'p1140', 'price': '1140'}, {'fare_id': 'p1150', 'price': '1150'}, {'fare_id': 'p1180', 'price': '1180'}, {'fare_id': 'p1200', 'price': '1200'}, {'fare_id': 'p200', 'price': '200'}, {'fare_id': 'p210', 'price': '210'}, {'fare_id': 'p220', 'price': '220'}, {'fare_id': 'p230', 'price': '230'}]
- Feed validity changed: feed_end_date: 20260930 → 20270930, feed_start_date: 20251001 → 20261001, feed_version: 2025/10/01改正-見える化ver2.6e → 20260925_バスキャッチ
- Agency info changed: 
- Translations changed: 
- Route shape changed (SHAPE_CHANGED): 2
- Unexplained residual (UNEXPLAINED_RESIDUAL): 5

## 7. Verification (explanation ledger)

- explained_ratio: 0.9988 (9907 / 9919)
- Residuals located in: attributions.txt (1), routes.txt (5), stops.txt (2), transfers.txt (1), trips.txt (3)
- TECHNICAL_ID_CHURN (ID reassignment): 0 / UNEXPLAINED_RESIDUAL: 5
- self_check: 0

Deep dive (URLs for this pair):
- per-route detail, L1, all routes (routes.digest.json): /r/gan-wu__shiokazeline__7624680b__8b2db3fe/v/2026.9.22.1.routes.digest.json
- ID mapping tables (mapping.json): /r/gan-wu__shiokazeline__7624680b__8b2db3fe/v/2026.9.22.1.mapping.json
- all events with evidence, L2 (events.json): /r/gan-wu__shiokazeline__7624680b__8b2db3fe/v/2026.9.22.1.events.json
- every raw diff, L2 (rawdiffs.json): /r/gan-wu__shiokazeline__7624680b__8b2db3fe/v/2026.9.22.1.rawdiffs.json

Spec: /docs/reference.md on this site. If the MCP connector (https://diff.gtfs.jp/mcp) is registered, the {pair} part of this page's r/{pair}.html URL is the pair argument of every tool.