WMUWellington Metro Upgradechainage tolerance ±10 mm
Running lines4 tracks · 6 switches · 1 branches
Hutt Valley LineSL · Single Line5.8 MGTLP1 · Featherston Passing Loop2 MGTLP2 · Matarawa Passing Loop2 MGTLP3 · Solway Passing Loop2 MGT0.0 km11.7 km23.4 km35.1 km46.8 km58.5 km

Wairarapa Line

SL · Single Line58.465 km · 5.8 MGT/yr on this running line · 12 services/weekday · run 2026-06-18
map data © OpenStreetMap contributors (ODbL) — tiles © CARTO
click the alignment to move the chainage cursor · 29.232 km
1Measured data
2Analysis overlay
3Work history
5Planned work
Chainage10 mm grid
0
5
10
15
20
25
30
35
40
45
50
55
Upper Hutt
Maymorn
Featherston
Woodside
Matarawa
Carterton
Solway
Top 35 m SD
mm · 3 runs to 2026-06-18
Twist 3 m SD
mm · 3 runs to 2026-06-18
Alignment 35 m SD
mm · 3 runs to 2026-06-18
Gauge deviation
mm · 3 runs to 2026-06-18
RCF eddy current depth
mm · 3 runs to 2026-06-18
Rail head loss
mm · 3 runs to 2026-06-18
Rail side wear
mm · 3 runs to 2026-06-18
Ultrasonic crack — rail head
% head · 3 runs to 2026-06-18
Ultrasonic crack — rail foot
% foot · 3 runs to 2026-06-18
GPR ballast fouling index
% · 3 runs to 2026-06-18
Utilisation (MGT/yr)
MGT · 1 runs to 2026-06-18
OLE contact wire height
mm above TOR · 3 runs to 2026-06-18
OLE contact wire stagger
mm from centreline · 3 runs to 2026-06-18
OLE contact wire residual thickness
mm · 3 runs to 2026-06-18
OLE contact wire wear
% section loss · 3 runs to 2026-06-18
Structures
15 features
Switches & crossings
2 features
Level crossings
8 features
Geotechnical risk
10 features
Drainage assets
16 features
Ultrasonic defects
13 features
Overhead line equipment
24 features
Track geometry exceedance
1 flagged lengths
Fouling, drainage and geometry correlation
1 flagged lengths
RCF and wear grinding candidate
1 flagged lengths
Tamping efficiency exhausted
1 flagged lengths
Overhead line condition
5 flagged lengths
Work history
44 records
Planned work
2 planned items
29.232 km

Scroll to zoom about the cursor · drag to pan · every band shares one 10 mm-aligned chainage axis