Hillier Road

WAResidential road16.5 km35 segments

4.0Sports

16.5 kmTotal length

35Segments

35Grey spot segments

Hillier Road is a 17 km sealed residential street in Western Australia, Australia. It scores 5.3/10 for 4WDs with straight corners and rough surface.

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Vehicle scores

4.0/10

SPTSportsSealed roads, curviness, mountain passes

5.1/10

MOTMotoTight bends, switchbacks, technical roads

4.0/10

EVEVSmooth surface, sealed roads, range-friendly

5.3/10

4WD4WDGravel access, off-road suitability

4.0/10

VANCaravanSmooth sealed, gentle grades, no steep passes

Segment quality distribution

Sports score - 35 segments

Excellent (8+)6%Good (6-8)9%Fair (4-6)80%Poor (<4)6%

Sports score IQR: 4.0 - 4.0

Surface

Surface coverage

Sealed18%Unsealed82%

Score breakdown

Median component scores across all segments

Surface

3.0

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

Curviness

0.0

Median curviness. Higher scores mean more bends per kilometre.

Speed

10.0

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

Road classResidential road

3.0

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

Traffic

7.0

Estimated traffic density. Lower traffic = higher score.

Elevation

4.0

Elevation change per kilometre. More climbing = higher score.

Crash history

Aggregated across all 35 segments

Grey spots

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

Segments

Top 36 segments by sports score

IDSurfaceLengthSportsMotoEV

#100126045Asphalt0.50 km8.38.28.2 #100126044Asphalt0.22 km8.07.87.8 #100126050Asphalt0.37 km7.97.87.7 #100126046Asphalt0.50 km7.47.27.5 #100126047Asphalt0.41 km7.37.17.5 #100126048Asphalt0.50 km5.75.35.9 #100126049Asphalt0.50 km5.55.15.6 #98841046Unpaved0.50 km4.06.54.0 #98841048Unpaved0.50 km4.04.14.0 #98841049Unpaved0.18 km4.04.44.0 #98841051Unpaved0.50 km4.06.54.0 #98841053Unpaved0.55 km4.04.14.0 #98841054Unpaved0.50 km4.06.54.0 #98841055Unpaved0.50 km4.05.14.0 #98841056Unpaved0.50 km4.04.44.0 #98841057Unpaved0.50 km4.04.44.0 #98841047Unpaved0.65 km4.06.44.0 #98841059Unpaved0.49 km4.04.14.0 #98841060Unpaved0.50 km4.06.54.0 #98841061Unpaved0.50 km4.04.44.0 #98841062Unpaved0.56 km4.04.14.0 #98841063Unpaved0.39 km4.06.54.0 #98841064Unpaved0.44 km4.06.54.0 #98841065Unpaved0.50 km4.04.14.0 #98841066Unpaved0.50 km4.04.44.0 #98841068Unpaved0.04 km4.04.14.0 #98841058Unpaved0.50 km4.04.44.0 #98841050Unpaved0.50 km4.04.14.0 #98841041Unpaved0.65 km4.06.34.0 #98841042Unpaved0.50 km4.06.54.0 #98841043Unpaved0.50 km4.04.14.0 #98841044Unpaved0.50 km4.04.14.0 #98841045Unpaved0.50 km4.05.34.0 #98841067Unpaved0.60 km3.93.93.8 #98841052Unpaved0.50 km3.93.93.8 #99792177Unpaved0.28 km2.45.44.0

API reference

Road aggregate data via the Contour API

GET/api/v1/roads/hillier-road-waRoad aggregate - scores, stats, risk profile, activity, segment list

GET/api/v1/roads/search?q=Hillier%20Road&state=WASearch roads by name

Councils & Government

This road is part of WA'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 Hillier Road?+

Hillier Road is approximately 17 km long. At typical touring speeds, expect around 1 hour of driving end to end, excluding stops.

Is Hillier Road sealed?+

Yes. Hillier Road is fully sealed for its entire length.

Is Hillier Road good for motorcycles?+

It is passable. Hillier Road scores 5.1/10 for motorcycles. Consider it a connector rather than a destination ride.

Can I drive Hillier Road in a caravan?+

With care. Hillier Road scores 4.0/10 for caravans. Some sections may be tight or rough for a heavy tow.

Are there any dangerous sections on Hillier Road?+

Contour has identified 35 grey spots on Hillier Road - 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: 23 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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