Route | Heathrow Airport Link Line |
Section | Heathrow Tunnel Jn to Heathrow Airport Terminal 4 |
Remarks | British Airports Authority (BAA) owned |
Interactive Map | |
/// what3words Addresses | |
Track Curvature | |
Elevation Profile | |
Geology | |
Area Maps | Airport Jn , Heathrow Airport |
Extent | 19.857km to 26.860km • 4.351 miles • 7.002 km |
Units | ℹ️ Kilometre-based ELR |
Measured | 6.868 km (Δ -135m) ⚠️ Large variation between reported and measured extents |
Grouping | HLL , HLL1 , HLL2 |
Neighbours | HLL , HLL2 |
NR Region | Wales & Western |
TRACKmaps Book 3 — Western & Wales |
Administrative Area
Mileage | Country | Administrative Area |
---|---|---|
19.857km to 26.860km | England | Hillingdon |
Nearest Place and District
Mileage | Nearest Place | District / County | Distance |
---|---|---|---|
19.857km to 20.247km | West Drayton | Greater London - Hillingdon | 1119m - 1187m |
20.248km to 22.379km | Sipson | Greater London - Hillingdon | 358m - 1153m |
22.380km to 23.184km | Harlington | Greater London - Hillingdon | 1169m - 1814m |
23.185km to 23.707km | Sipson | Greater London - Hillingdon | 1831m - 2077m |
23.708km to 26.181km | West Bedfont | Surrey - Spelthorne | 644m - 2069m |
26.182km to 26.860km | East Bedfont | Greater London - Hounslow | 1069m - 1265m |
Positional Accuracy Statistics
Property | Count | Min | Max | Mean | Median | Std Dev |
---|---|---|---|---|---|---|
Linear Accuracy | 17 | -101m | 7m | -8m | -0m | 25m |
Normalised Quarter Miles | 17 | 291y | 446y | 422y | 440y | 49y |
Calibration Segment Length | 17 | 56y | 547y | 450y | 547y | 188y |