| Route | Seaford Branch |
| Section | Southerham Jn to Seaford |
| ELR Maps | Atlas , Interactive |
| Area Maps | Lewes , Newhaven |
| Extent | 51M 0233y to 59M 0057y • 7.900 miles • 12.714 km |
| Measured | 12.733 km (Δ +19m) |
| Neighbours | KJE2 , KJE3 , NHB |
| NR Region | Southern |
 | TRACKmaps Book 5 — Southern & TfL |
🏢 Administrative Area
| Mileage | Country | Administrative Area |
|---|---|---|
| 51M 0233y to 59M 0057y | England | East Sussex |
📍 Nearest Place and District
| Mileage | Nearest Place | District / County | Distance |
|---|---|---|---|
| 51M 0233y to 51M 0604y | Cuilfail | East Sussex - Lewes | 1466m - 1761m |
| 51M 0605y to 52M 1286y | Beddingham | East Sussex - Lewes | 1147m - 1810m |
| 52M 1287y to 54M 0362y | Southease | East Sussex - Lewes | 771m - 1800m |
| 54M 0363y to 54M 0824y | Tarring Neville | East Sussex - Lewes | 940m - 1234m |
| 54M 0825y to 54M 1308y | Piddinghoe | East Sussex - Lewes | 634m - 922m |
| 54M 1309y to 55M 0428y | Tarring Neville | East Sussex - Lewes | 499m - 688m |
| 55M 0429y to 55M 1418y | South Heighton | East Sussex - Lewes | 566m - 790m |
| 55M 1419y to 56M 0318y | Mount Pleasant | East Sussex - Lewes | 623m - 797m |
| 56M 0319y to 57M 0252y | Newhaven | East Sussex - Lewes | 567m - 1457m |
| 57M 0253y to 57M 0494y | Mount Pleasant | East Sussex - Lewes | 1471m - 1569m |
| 57M 0495y to 58M 0362y | Bishopstone | East Sussex - Lewes | 1147m - 1555m |
| 58M 0363y to 58M 0780y | East Blatchington | East Sussex - Lewes | 1059m - 1236m |
| 58M 0781y to 59M 0057y | Seaford | East Sussex - Lewes | 209m - 1050m |
🏷️ Positional Accuracy Statistics
| Property | Count | Min | Max | Mean | Median | Std Dev |
|---|---|---|---|---|---|---|
| Linear Accuracy | 32 | -6m | 12m | 1m | 0m | 3m |
| Normalised Quarter Miles | 32 | 434y | 469y | 442y | 440y | 6y |
| Calibration Segment Length | 32 | 7y | 640y | 434y | 440y | 86y |