Stats computed: 2026-10-28 02:13:46
Last Pipeline Completed
2026-10-28 02:13:43
Last ATLAS Downloaded
2026-10-27 03:50:00
Last GTFS Downloaded
2026-10-27 03:50:00
Last Overpass Query
2026-10-28 02:07:26
Stops matching
55,095
ATLAS Platforms
49,485
OSM Stops
66,256
OSM Nodes
89.5%
Matched ATLAS (%)
52,104
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) | 21,289 | 33.3% | 13,255 | 5,799 | 20.59 | 8.49 | 77.11 |
| Name matching | 442 | 0.7% | 6 | 157 | 48.14 | 13.91 | 116.05 |
| Route matching (total) | 15,851 | 24.8% | 16 | 3,955 | 7.08 | 5.15 | 20.64 |
| GTFS | 15,851 | 24.8% | 16 | 3,955 | 7.08 | 5.15 | 20.64 |
| Distance (total) | 11,781 | 18.4% | 2,488 | 3,434 | - | - | - |
| Stage 0: Trio side matching | 2,454 | 3.8% | 2,454 | 856 | 8.54 | 4.47 | 23.2 |
| Stage 1: Group proximity (50m) | 8,327 | 13.0% | 26 | 2,125 | - | - | - |
| Stage 1a: UIC ref | 8,022 | 12.6% | 23 | 2,056 | 7.82 | 5.23 | 24.86 |
| Stage 1b: UIC name | 39 | 0.1% | 0 | 5 | 7.68 | 5.92 | 33.41 |
| Stage 1c: Name | 266 | 0.4% | 3 | 64 | 12.22 | 7.98 | 37.87 |
| Stage 1b: Group proximity (150m) | 510 | 0.8% | 3 | 384 | - | - | - |
| Stage 1d: UIC ref (150m) | 482 | 0.8% | 1 | 361 | 82.79 | 75.78 | 136.66 |
| 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 | 75 | 0.1% | 4 | 25 | 16.76 | 13.12 | 39.9 |
| Stage 3a: Single candidate | 364 | 0.6% | 1 | 44 | - | - | - |
| 3a pass 1 | 327 | 0.5% | 1 | 38 | 12.99 | 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 | 330 | 0.5% | 330 | 123 | 23.86 | 8.61 | 100.28 |
| Post-processing: OSM stop partner propagation | 14,189 | 22.2% | 1,791 | 8,343 | 8.9 | 5.39 | 26.51 |
Distance Quality
13.17m
Mean Distance
6.02m
Median Distance
46.33m
95th Percentile
Cross-Predicate Consistency
If we had matched every pair to its nearest OSM node instead:
65.9%
Consistent with Nearest
42,071
Same as Nearest
21,811
Would Differ
Many-to-One Analysis
OSM platform/stop_position groups are counted as one OSM stop in this section.
332
ATLAS platforms matched to multiple OSM stops
Max: 5 OSM stops per ATLAS
7,338
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
66,256
OSM Nodes
49,485
OSM Stops
1,716
OSM Stations
3,777
Nodes with
operator:wikidata27,733
Nodes with
network:wikidataNon-node OSM Stops (Ways)
341
Total Way Stops
166
Matched
175
Unmatched
48.7%
Match Rate
OSM Groups (Platform / Stop Position Pairs)
15,543
Total Groups
15,417
Both Matched
126
Neither Matched
Groups by Type
| Group Type | Count |
|---|---|
| osm_trio | 1,228 |
| osm_pair_uic_equal_15m | 10,353 |
| osm_pair_uic | 2,954 |
| osm_pair_name | 647 |
| osm_pair_name_equal_15m | 30 |
| osm_pair_tram | 319 |
| osm_pair_tram_equal_15m | 12 |
Unmatched
Unmatched Analysis
Unmatched ATLAS (5,778)
| No OSM within 50m | 2,991 |
| Has nearby OSM | 2,787 |
Unmatched OSM (9,203)
| No ATLAS within 50m | 3,368 |
| Has nearby ATLAS | 5,835 |
Attributes Analysis
| Has Attributes | Count |
|---|---|
| UIC & Local Ref & Routes | 162 |
| UIC & Local Ref | 103 |
| UIC & Routes | 2,154 |
| Local Ref & Routes | 84 |
| UIC only | 2,916 |
| Local Ref only | 85 |
| Routes only | 1,024 |
| None | 2,675 |
ATLAS
ATLAS Duplicates
| Total duplicate SLOIDs | 638 |
| Matched duplicates | 641 |
| Unmatched duplicates | 48 |
Problems
Problem Detection Statistics
39,831
Clean Entries (No Problems)
50.5% of total
78,863
39,032
Entries with Problems
49.5% of
total 78,863
4,519
Multiple Problems Output
Entries with >1 problem types
P1
Critical
6,669
| Problem Type | Count |
|---|---|
| Distance — Too far from OSM node | 1,238 |
| Unmatched — Isolated ATLAS / OSM node | 4,498 |
| Attributes — Missing or mismatched data | 933 |
P2
Significant
16,032
| Problem Type | Count |
|---|---|
| Distance — Too far from OSM node | 4,548 |
| Unmatched — Isolated ATLAS / OSM node | 7,515 |
| Attributes — Missing or mismatched data | 330 |
| Duplicates — OSM or ATLAS side collisions | 343 |
P3
Minor
21,161
| Problem Type | Count |
|---|---|
| Distance — Too far from OSM node | 5,618 |
| Unmatched — Isolated ATLAS / OSM node | 2,968 |
| Attributes — Missing or mismatched data | 11,113 |
| Duplicates — OSM or ATLAS side collisions | 1,462 |
Routes
Route Coverage
| ATLAS stops matched by GTFS routes | 45,036 / 55,095 | 81.7% |
| OSM stops with routes coverage | 35,260 | 71.3% |
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) | 2,055 |
| Linked ATLAS route IDs | 2,055 |
| Linked OSM route IDs | 2,055 |
| Coverage | Count | Percent |
|---|---|---|
| ATLAS route IDs with link | 2,055 / 4,073 | 50.5% |
| OSM route IDs with link | 2,055 / 2,874 | 71.5% |
| ATLAS itineraries with link | 1,074 / 14,669 | 7.3% |
| OSM itineraries with link | 1,074 / 8,208 | 13.1% |
| ATLAS route directions (total) | 7,682 | - |
| OSM route directions (total) | 4,919 | - |
Match Method Breakdown
| Method | Count | % of Total |
|---|---|---|
| Exact GTFS route ID | 1,660 | 80.8% |
| Normalized GTFS route ID | 395 | 19.2% |
| 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 | 3.6 | 3.0 |
| OSM itineraries per family | 2.86 | 2.0 |
| GTFS trips collapsed into one ATLAS itinerary | 170.13 | 28.0 |
| Matched family itinerary gap (ATLAS - OSM) | 1.06 | 0.0 |
| Matched Family Comparison | Count |
|---|---|
| Matched families where ATLAS has more itineraries | 921 |
| Matched families with equal itinerary counts | 793 |
| Matched families where OSM has more itineraries | 341 |
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 | 93.1% | 7,965 |
| Normalized GTFS route ID | 5 | 0.2% | 7 |
| Synthetic key (route, ref, operator, network) | 194 | 6.8% | 236 |
| Per-relation fallback (no grouping key) | 0 | 0.0% | 0 |
| Total | 2,874 | 100% | 8,208 |
GTFS stop_id → ATLAS sloid Mapping
83,086
Total GTFS stop_ids
51,054
Matched stop_ids
32,032
Unmatched stop_ids
61.45%
GTFS stop_id Coverage
55,095
Total ATLAS stops
45,036
ATLAS stops matched
81.7%
ATLAS stop Coverage
Matching Paths
① Direct SLOID match
Matches where original_stop_id directly contains a valid ATLAS SLOID.
43,701
Assignments
② Strict matching
Matches on (UIC number, local ref) = (number, designation) in ATLAS.
19
Assignments
③ Coordinate proximity
For remaining: ATLAS stops with the same UIC number within 0.5m (must be unambiguous).
966
Assignments
④ Unique-number fallback
For remaining: if a UIC number maps to exactly one ATLAS row, use that sloid.
6,369
Assignments
51,055
Total assignments (all paths combined)
Cardinality
GTFS stop_id side
51,053
1 → 1
1
1 → many
ATLAS sloid side
39,830
1 → 1
5,206
many → 1
Unmatched Reasons
| Reason | Count |
|---|---|
| No ATLAS candidate for this UIC number | 631 |
| Non-unique ATLAS number (strict miss, fallback not applicable) | 31,401 |
| Coordinate proximity conflict (multiple candidates within radius) | 278 |