M4 East Tunnel

NSWMotorway10.0 km25 segmentsM4

5.6Sports

10.0 kmTotal length

25Segments

53Grey spot segments

M4 East Tunnel is a 10 km sealed motorway in New South Wales, Australia. It scores 5.9/10 for EVs with straight corners and excellent surface.

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Vehicle scores

5.6/10

SPTSportsSealed roads, curviness, mountain passes

5.1/10

MOTMotoTight bends, switchbacks, technical roads

5.9/10

EVEVSmooth surface, sealed roads, range-friendly

4.6/10

4WD4WDGravel access, off-road suitability

5.7/10

VANCaravanSmooth sealed, gentle grades, no steep passes

Segment quality distribution

Sports score - 25 segments

Good (6-8)43%Fair (4-6)55%Poor (<4)2%

Sports score IQR: 5.0 - 6.6

Surface

Surface coverage

Sealed73%Unsealed27%

Score breakdown

Median component scores across all segments

Surface

9.0

Median surface quality. Smooth sealed asphalt scores 10. Chipseal 8. Gravel 5.

Curviness

3.8

Median curviness. Higher scores mean more bends per kilometre.

Speed

10.0

Speed limit suitability. Sweet spot is 60-110 km/h.

Road classMotorway

0.0

Road classification. Motorways score zero. Tertiary roads score 9.

Traffic

1.0

Estimated traffic density. Lower traffic = higher score.

Elevation

7.0

Elevation change per kilometre. More climbing = higher score.

Crash history

Aggregated across all 25 segments· 10 years of data

Grey spots

Crash record linkage not yet available for NSW. Grey spots are segments where curvature geometry mismatches the posted speed limit - these are flagged regardless of crash history.

When is this road risky?

Crash conditions - share of recorded crashes by circumstance

Wet road crashes

Crashes that occurred in wet conditions

Night crashes

Crashes that occurred after dark

13%

Based on 10 years of crash records linked to road geometry. Crash breakdown (night, wet, weekends): VIC data 2012-2024. Other states show aggregate counts only.

Segments

Top 54 segments by sports score

IDSurfaceLengthSportsMotoEV

#111094583Paved0.63 km7.06.77.1 #111418219-0.48 km7.06.96.9 #111389536Paved0.49 km7.06.67.0 #111281174-0.65 km6.96.86.9 #111281175-0.31 km6.86.76.7 #111281131Concrete0.43 km6.66.36.7 #111281177-0.65 km6.66.56.4 #111418220-0.45 km6.66.56.6 #111094586Paved0.41 km6.66.26.8 #111281130Concrete0.63 km6.56.16.6 #111418217-0.65 km6.56.46.3 #111281132Concrete0.65 km6.56.16.5 #111094584Paved0.46 km6.56.06.6 #111281178-0.60 km6.36.26.2 #111094577Paved0.38 km6.35.96.7 #111094587Paved0.26 km6.35.96.5 #111389537Concrete0.37 km6.35.96.4 #111094576Paved0.41 km6.25.86.5 #111418218-0.30 km6.26.06.0 #111237906Concrete0.40 km6.15.86.3 #111094575Paved0.41 km6.15.76.4 #111094585Paved0.35 km6.15.66.3 #111281179-0.25 km6.05.86.0 #111094225Concrete0.57 km6.05.66.1 #111237897Paved0.36 km5.95.46.2 #111237945Concrete0.27 km5.95.56.2 #111237907Concrete0.37 km5.85.56.1 #111237905Concrete0.38 km5.85.46.0 #111418095Paved0.25 km5.55.06.0 #111237896Paved0.45 km5.44.95.6 #111281133Concrete0.12 km5.45.05.7 #111094580Paved0.59 km5.34.85.7 #111281134Concrete0.20 km5.34.95.6 #111094578Paved0.57 km5.34.75.7 #111237898Concrete0.53 km5.14.75.5 #111094579Paved0.40 km5.14.65.5 #111237904Concrete0.41 km5.14.65.4 #111281176-0.24 km5.04.95.1 #111237903Concrete0.46 km5.04.55.4 #111094582Paved0.50 km5.04.55.4 #111094226Concrete0.07 km5.04.55.3 #112636173Concrete0.11 km4.94.55.3 #111237940Paved0.42 km4.94.45.4 #111094581Paved0.40 km4.94.35.2 #111406799-0.20 km4.94.75.0 #111237901Concrete0.38 km4.84.45.3 #111237902Concrete0.14 km4.84.35.2 #111237899Concrete0.42 km4.84.35.2 #111237908Concrete0.08 km4.64.15.1 #111483190-0.20 km4.64.34.9 #111237900Concrete0.54 km4.54.04.8 #111483191-0.20 km4.03.74.5 #111418097-0.23 km4.03.74.1 #111281257-0.23 km3.83.43.9

API reference

Road aggregate data via the Contour API

GET/api/v1/roads/m4-east-tunnel-nswRoad aggregate - scores, stats, risk profile, activity, segment list

GET/api/v1/roads/search?q=M4%20East%20Tunnel&state=NSWSearch roads by name

Councils & Government

This road is part of NSW's road network. Contour scores every road in Australia for surface condition, curviness, grey spot classification, and 4WD track passability. If your organisation manages this road or promotes tourism in the region, this data is available via API.

Enquire about council data access →

Frequently asked questions

How long is M4 East Tunnel?+

M4 East Tunnel is approximately 10 km long. At typical touring speeds, expect around 1 hour of driving end to end, excluding stops.

Is M4 East Tunnel sealed?+

Yes. M4 East Tunnel is fully sealed for its entire length.

Is M4 East Tunnel good for motorcycles?+

It is passable. M4 East Tunnel scores 5.1/10 for motorcycles. Consider it a connector rather than a destination ride.

Can I drive M4 East Tunnel in a caravan?+

With care. M4 East Tunnel scores 5.7/10 for caravans. Some sections may be tight or rough for a heavy tow.

Are there any dangerous sections on M4 East Tunnel?+

Contour has identified 53 grey spots on M4 East Tunnel - sections where the road geometry does not match the posted speed limit. Take extra care in wet or low-visibility conditions.

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Road data last updated: 21 April 2026. Scores are based on road geometry, surface, and traffic data. Always drive to conditions and follow local road rules.

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