AKLAuckland Metro Networkchainage tolerance ±10 mm
Running lines5 tracks · 23 switches · 19 branches
East-West LineOnehunga & Western LineDM · Down Main6.3 MGTUM · Up Main5.1 MGTDR · Down Relief (freight)4.6 MGTUR · Up Relief (freight)4.6 MGTLP1 · Ellerslie Goods Loop0.7 MGT0.0 km10.9 km21.9 km32.8 km43.7 km54.6 km

Southern Line

UM · Up Main54.626 km · 5.1 MGT/yr on this running line · 242 services/weekday · run 2026-06-18
map data © OpenStreetMap contributors (ODbL) - tiles © CARTO
click the alignment to move the chainage cursor · 27.313 km
1Measured data
2Analysis overlay
3Work history
5Planned work
Chainage10 mm grid
0
5
10
15
20
25
30
35
40
45
50
Pukekohe
Paerātā
Ngākōroa
Papakura
Te Mahia
Wiri Junction
Middlemore
Penrose
Remuera
Karanga-a-Hape
Newmarket
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
34 features
Switches & crossings
13 features
Level crossings
8 features
Geotechnical risk
9 features
Drainage assets
16 features
Ultrasonic defects
17 features
Overhead line equipment
28 features
Track geometry exceedance
3 flagged lengths
Fouling, drainage and geometry correlation
2 flagged lengths
RCF and wear grinding candidate
5 flagged lengths
Tamping efficiency exhausted
3 flagged lengths
Overhead line condition
1 flagged lengths
Track form
1 slab length · no ballast work
Work history
55 records
Planned work
7 planned items
SLAB
GRIND
27.313 km

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