| Route | Swansea District Line |
| Section | Briton Ferry to Jersey Marine Jn (Up Flying Loop) |
| ELR Maps | Atlas , Interactive |
| Area Maps | Briton Ferry , Neath , Llansamlet |
| Extent | 206M 0228y to 209M 1290y • 3.603 miles • 5.799 km |
| Measured | 5.827 km (Δ +28m) |
| Grouping | SDI1 , SDI2 |
| Neighbours | JER , RSB , SDI2 , SWM2 , VON |
| NR Region | Wales & Western |
 | TRACKmaps Book 3 — Western & Wales |
🏢 Administrative Area
| Mileage | Country | Administrative Area |
|---|---|---|
| 206M 0228y to 208M 1682y | Wales | Neath Port Talbot |
| 208M 1683y to 209M 1290y | Wales | Swansea |
📍 Nearest Place and District
| Mileage | Nearest Place | District / County | Distance |
|---|---|---|---|
| 206M 0228y to 206M 0252y | Briton Ferry | Neath Port Talbot | 285m - 295m |
| 206M 0253y to 206M 0714y | Shelone | Neath Port Talbot | 300m - 536m |
| 206M 0715y to 206M 1000y | Brynhyfryd | Neath Port Talbot | 407m - 529m |
| 206M 1001y to 206M 1660y | Cwrt Sart | Neath Port Talbot | 284m - 483m |
| 206M 1661y to 207M 1242y | Brynhyfryd | Neath Port Talbot | 501m - 1361m |
| 207M 1243y to 208M 1176y | Skewen | Neath Port Talbot | 816m - 1371m |
| 208M 1177y to 208M 1638y | Llandarcy | Neath Port Talbot | 934m - 1081m |
| 208M 1639y to 209M 0230y | Skewen | Neath Port Talbot | 1091m - 1158m |
| 209M 0231y to 209M 1290y | Llwynbrwydrau | Swansea | 199m - 1150m |
🏷️ Positional Accuracy Statistics
| Property | Count | Min | Max | Mean | Median | Std Dev |
|---|---|---|---|---|---|---|
| Linear Accuracy | 6 | -17m | 25m | 5m | 5m | 13m |
| Normalised Quarter Miles | 6 | 422y | 454y | 442y | 442y | 12y |
| Calibration Segment Length | 6 | 212y | 1760y | 1057y | 1085y | 659y |