Stats computed: 2026-10-07 00:11:15
Last Pipeline Completed
2026-10-07 00:11:12
Last ATLAS Downloaded
2026-10-06 04:44:00
Last GTFS Downloaded
2026-10-06 04:44:00
Last Overpass Query
2026-10-07 00:04:47
Stops matching
55,038
ATLAS Platforms
49,477
OSM Stops
66,250
OSM Nodes
89.5%
Matched ATLAS (%)
52,053
ATLAS with OSM ≤ 50m
94.7%
Matched ATLAS with OSM ≤ 50m (%)
Matching Stages
| Stage | Count | % of Total | Many-to-One | Not Closest | Mean (m) | Median (m) | P95 (m) |
|---|---|---|---|---|---|---|---|
| Exact (UIC ref) | 21,266 | 33.3% | 13,226 | 5,800 | 20.65 | 8.5 | 77.22 |
| Name matching | 440 | 0.7% | 6 | 157 | 48.46 | 13.91 | 116.57 |
| Route matching (total) | 15,801 | 24.8% | 14 | 3,945 | 7.08 | 5.15 | 20.67 |
| GTFS | 15,801 | 24.8% | 14 | 3,945 | 7.08 | 5.15 | 20.67 |
| Distance (total) | 11,809 | 18.5% | 2,489 | 3,442 | - | - | - |
| Stage 0: Trio side matching | 2,454 | 3.8% | 2,454 | 857 | 8.54 | 4.47 | 23.07 |
| Stage 1: Group proximity (50m) | 8,359 | 13.1% | 27 | 2,138 | - | - | - |
| Stage 1a: UIC ref | 8,050 | 12.6% | 24 | 2,068 | 7.81 | 5.22 | 24.94 |
| Stage 1b: UIC name | 41 | 0.1% | 0 | 7 | 8.83 | 6.16 | 33.41 |
| Stage 1c: Name | 268 | 0.4% | 3 | 63 | 12.08 | 7.95 | 37.87 |
| Stage 1b: Group proximity (150m) | 505 | 0.8% | 3 | 379 | - | - | - |
| Stage 1d: UIC ref (150m) | 477 | 0.7% | 1 | 356 | 82.47 | 75.66 | 137.57 |
| Stage 1e: UIC name (150m) | 5 | 0.0% | 0 | 4 | 121.32 | 123.62 | 149.23 |
| Stage 1f: Name (150m) | 23 | 0.0% | 2 | 19 | 74.09 | 60.62 | 126.95 |
| Stage 2: Local ref | 74 | 0.1% | 4 | 25 | 16.97 | 13.48 | 39.9 |
| Stage 3a: Single candidate | 366 | 0.6% | 1 | 43 | - | - | - |
| 3a pass 1 | 329 | 0.5% | 1 | 37 | 12.97 | 8.67 | 44.31 |
| 3a pass 2 | 37 | 0.1% | 0 | 6 | 11.28 | 5.53 | 44.52 |
| Stage 3b: Ratio test | 51 | 0.1% | 0 | 0 | 2.94 | 2.43 | 7.13 |
| Post-processing: ATLAS Duplicate propagation | 336 | 0.5% | 336 | 119 | 24.19 | 8.68 | 101.53 |
| Post-processing: OSM stop partner propagation | 14,190 | 22.2% | 1,788 | 8,343 | 8.89 | 5.39 | 26.51 |
Distance Quality
13.18m
Mean Distance
6.03m
Median Distance
46.33m
95th Percentile
Cross-Predicate Consistency
If we had matched every pair to its nearest OSM node instead:
65.8%
Consistent with Nearest
42,036
Same as Nearest
21,806
Would Differ
Many-to-One Analysis
OSM platform/stop_position groups are counted as one OSM stop in this section.
333
ATLAS platforms matched to multiple OSM stops
Max: 5 OSM stops per ATLAS
7,326
OSM stops matched to multiple ATLAS platforms
Max: 10 ATLAS per OSM stop
Distribution: 1 ATLAS to N OSM stops
Ratio key: 1A:2O = one ATLAS platform matched to two OSM stops.
Distribution: N ATLAS to 1 OSM stop
Ratio key: 2A:1O = two ATLAS platforms matched to one OSM stop.
OSM Stops
OSM Stop Inventory
66,250
OSM Nodes
49,477
OSM Stops
1,716
OSM Stations
3,776
Nodes with
operator:wikidata27,703
Nodes with
network:wikidataNon-node OSM Stops (Ways)
342
Total Way Stops
166
Matched
176
Unmatched
48.5%
Match Rate
OSM Groups (Platform / Stop Position Pairs)
15,545
Total Groups
15,418
Both Matched
127
Neither Matched
Groups by Type
| Group Type | Count |
|---|---|
| osm_trio | 1,228 |
| osm_pair_uic_equal_15m | 10,357 |
| osm_pair_uic | 2,951 |
| osm_pair_name | 648 |
| osm_pair_name_equal_15m | 30 |
| osm_pair_tram | 319 |
| osm_pair_tram_equal_15m | 12 |
Unmatched
Unmatched Analysis
Unmatched ATLAS (5,764)
| No OSM within 50m | 2,985 |
| Has nearby OSM | 2,779 |
Unmatched OSM (9,223)
| No ATLAS within 50m | 3,394 |
| Has nearby ATLAS | 5,829 |
Attributes Analysis
| Has Attributes | Count |
|---|---|
| UIC & Local Ref & Routes | 152 |
| UIC & Local Ref | 114 |
| UIC & Routes | 2,044 |
| Local Ref & Routes | 81 |
| UIC only | 3,045 |
| Local Ref only | 90 |
| Routes only | 1,002 |
| None | 2,695 |
ATLAS
ATLAS Duplicates
| Total duplicate SLOIDs | 652 |
| Matched duplicates | 649 |
| Unmatched duplicates | 50 |
Problems
Problem Detection Statistics
39,838
Clean Entries (No Problems)
50.5% of total
78,829
38,991
Entries with Problems
49.5% of
total 78,829
4,503
Multiple Problems Output
Entries with >1 problem types
P1
Critical
6,675
| Problem Type | Count |
|---|---|
| Distance — Too far from OSM node | 1,233 |
| Unmatched — Isolated ATLAS / OSM node | 4,508 |
| Attributes — Missing or mismatched data | 934 |
P2
Significant
16,000
| Problem Type | Count |
|---|---|
| Distance — Too far from OSM node | 4,554 |
| Unmatched — Isolated ATLAS / OSM node | 7,514 |
| Attributes — Missing or mismatched data | 334 |
| Duplicates — OSM or ATLAS side collisions | 348 |
P3
Minor
21,131
| Problem Type | Count |
|---|---|
| Distance — Too far from OSM node | 5,618 |
| Unmatched — Isolated ATLAS / OSM node | 2,965 |
| Attributes — Missing or mismatched data | 11,088 |
| Duplicates — OSM or ATLAS side collisions | 1,460 |
Routes
Route Coverage
| ATLAS stops matched by GTFS routes | 44,811 / 55,038 | 81.4% |
| OSM stops with routes coverage | 33,665 | 68.0% |
ATLAS coverage here is stop-side route coverage. The GTFS mapping block below reports the separate GTFS stop_id to ATLAS sloid mapping coverage.
Route-Route Matching
| Metric | Count |
|---|---|
| Route-route links (ATLAS ↔ OSM) | 2,054 |
| Linked ATLAS route IDs | 2,054 |
| Linked OSM route IDs | 2,054 |
| Coverage | Count | Percent |
|---|---|---|
| ATLAS route IDs with link | 2,054 / 4,066 | 50.5% |
| OSM route IDs with link | 2,054 / 2,875 | 71.4% |
| ATLAS itineraries with link | 1,078 / 14,596 | 7.4% |
| OSM itineraries with link | 1,078 / 8,211 | 13.1% |
| ATLAS route directions (total) | 7,668 | - |
| OSM route directions (total) | 4,920 | - |
Match Method Breakdown
| Method | Count | % of Total |
|---|---|---|
| Exact GTFS route ID | 1,658 | 80.7% |
| Normalized GTFS route ID | 396 | 19.3% |
| OSM display route ID matches ATLAS route ID | 0 | 0.0% |
This section reports route-route links from import DB route tables, not stop-level predicate matches.
Route Pipeline Shape
| Metric | Mean | Median |
|---|---|---|
| ATLAS itineraries per family | 3.59 | 3.0 |
| OSM itineraries per family | 2.86 | 2.0 |
| GTFS trips collapsed into one ATLAS itinerary | 168.79 | 28.0 |
| Matched family itinerary gap (ATLAS - OSM) | 1.05 | 0.0 |
| Matched Family Comparison | Count |
|---|---|
| Matched families where ATLAS has more itineraries | 917 |
| Matched families with equal itinerary counts | 795 |
| Matched families where OSM has more itineraries | 342 |
OSM Route Family Grouping Method
How OSM route relations are grouped into line families. Priority order: route_master → GTFS route ID → (route, ref, operator, network) → per-relation fallback.
| Grouping Method | Families | % of Families | Relations |
|---|---|---|---|
| route_master (explicit OSM grouping) | 2,675 | 93.0% | 7,967 |
| Normalized GTFS route ID | 5 | 0.2% | 7 |
| Synthetic key (route, ref, operator, network) | 195 | 6.8% | 237 |
| Per-relation fallback (no grouping key) | 0 | 0.0% | 0 |
| Total | 2,875 | 100% | 8,211 |
GTFS stop_id → ATLAS sloid Mapping
82,939
Total GTFS stop_ids
50,826
Matched stop_ids
32,113
Unmatched stop_ids
61.28%
GTFS stop_id Coverage
55,038
Total ATLAS stops
44,811
ATLAS stops matched
81.4%
ATLAS stop Coverage
Matching Paths
① Direct SLOID match
Matches where original_stop_id directly contains a valid ATLAS SLOID.
43,476
Assignments
② Strict matching
Matches on (UIC number, local ref) = (number, designation) in ATLAS.
18
Assignments
③ Coordinate proximity
For remaining: ATLAS stops with the same UIC number within 0.5m (must be unambiguous).
967
Assignments
④ Unique-number fallback
For remaining: if a UIC number maps to exactly one ATLAS row, use that sloid.
6,366
Assignments
50,827
Total assignments (all paths combined)
Cardinality
GTFS stop_id side
50,825
1 → 1
1
1 → many
ATLAS sloid side
39,613
1 → 1
5,198
many → 1
Unmatched Reasons
| Reason | Count |
|---|---|
| No ATLAS candidate for this UIC number | 661 |
| Non-unique ATLAS number (strict miss, fallback not applicable) | 31,452 |
| Coordinate proximity conflict (multiple candidates within radius) | 280 |