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Quanbun Downs Road

WAResidential road42.9 km85 segments
3.4Sports
42.9 kmTotal length
85Segments
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Quanbun Downs Road is a 43 km unsealed residential street in Western Australia, Australia. It scores 3.8/10 for 4WDs with straight corners and rough surface.

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Vehicle scores
3.4/10
SPTSportsSealed roads, curviness, mountain passes
3.5/10
MOTMotoTight bends, switchbacks, technical roads
3.4/10
EVEVSmooth surface, sealed roads, range-friendly
3.8/10
4WD4WDGravel access, off-road suitability
3.8/10
VANCaravanSmooth sealed, gentle grades, no steep passes
Segment quality distribution
Sports score - 85 segments
Fair (4-6)28%Poor (<4)72%

Sports score IQR: 2.9 - 4.1

Surface
Surface coverage
Unsealed100%
Score breakdown
Median component scores across all segments
Surface
3.5
Median surface quality. Smooth sealed asphalt scores 10. Chipseal 8. Gravel 5.
Curviness
1.9
Median curviness. Higher scores mean more bends per kilometre.
Speed
4.0
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
2.7
Elevation change per kilometre. More climbing = higher score.
Segments
Top 85 segments by sports score
IDSurfaceLengthSportsMotoEV
#141718251-0.64 km5.35.55.0#141718249-0.65 km5.05.34.8#141718304-0.50 km4.74.94.4#141718250-0.50 km4.64.84.5#141718253-0.50 km4.64.84.3#141718258-0.65 km4.64.84.3#141718259-0.50 km4.64.84.3#141718271-0.50 km4.54.84.2#141718254-0.65 km4.54.84.2#141718290-0.50 km4.54.74.3#141718257-0.50 km4.44.64.3#141718267-0.65 km4.34.54.0#141718252-0.50 km4.34.54.0#141718289-0.65 km4.34.54.0#141718281-0.36 km4.34.54.0#141718261-0.65 km4.24.44.0#141718279-0.50 km4.24.44.0#141718276-0.50 km4.24.44.0#141718269-0.65 km4.24.43.9#141718270-0.50 km4.24.34.2#141718262-0.50 km4.14.34.1#141718303-0.65 km4.14.33.9#141718275-0.32 km3.94.03.9#141718305-0.50 km3.84.03.7#141718282-0.50 km3.53.63.5#141718248-0.50 km3.53.53.5#141718286-0.50 km3.13.23.3#141718311-0.50 km3.13.23.3#141718294-0.50 km3.13.13.2#141718314-0.61 km3.13.13.2#141718313-0.40 km3.13.13.2#141718263-0.53 km3.13.13.2#141718320-0.50 km3.13.13.2#141718285-0.50 km3.13.13.2#141718312-0.50 km3.13.13.2#141718324-0.58 km3.13.13.2#141718283-0.40 km3.13.13.2#141718302-0.50 km3.13.13.2#141718288-0.50 km3.13.13.2#141718309-0.50 km3.13.13.2#141718330-0.50 km3.13.13.2#141718315-0.50 km3.13.13.2#141718293-0.50 km3.13.13.2#141718323-0.50 km3.13.13.2#141718328-0.50 km3.13.13.2#141718321-0.35 km3.13.13.2#141718317-0.50 km3.13.13.2#141718292-0.50 km3.13.13.2#141718300-0.50 km2.93.03.0#141718264-0.50 km2.93.03.0#141718310-0.50 km2.93.03.0#141718284-0.50 km2.92.93.0#141718273-0.50 km2.92.93.0#141718260-0.56 km2.92.93.0#141718277-0.50 km2.92.93.0#141718329-0.47 km2.92.93.0#141718306-0.50 km2.92.93.0#141718296-0.50 km2.92.93.0#141718332-0.00 km2.92.93.0#141718265-0.50 km2.92.93.0#141718327-0.50 km2.92.93.0#141718331-0.50 km2.92.93.0#141718318-0.50 km2.92.93.0#141718291-0.50 km2.92.93.0#141718298-0.50 km2.92.93.0#141718280-0.50 km2.92.93.0#141718307-0.61 km2.92.93.0#141718319-0.43 km2.92.93.0#141718256-0.50 km2.92.93.0#141718299-0.50 km2.92.93.0#141718278-0.50 km2.92.93.0#141718268-0.50 km2.92.93.0#141718322-0.50 km2.92.93.0#141718287-0.50 km2.92.93.0#141718266-0.43 km2.92.93.0#141718308-0.50 km2.92.93.0#141718301-0.50 km2.92.93.0#141718325-0.50 km2.92.93.0#141718274-0.50 km2.92.93.0#141718272-0.53 km2.92.93.0#141718295-0.50 km2.92.93.0#141718297-0.50 km2.92.93.0#141718316-0.50 km2.92.93.0#141718326-0.50 km2.92.93.0#141718255-0.50 km2.92.93.0
API reference
Road aggregate data via the Contour API
GET/api/v1/roads/quanbun-downs-road-waRoad aggregate - scores, stats, risk profile, activity, segment list
GET/api/v1/roads/search?q=Quanbun%20Downs%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 Quanbun Downs Road?+

Quanbun Downs Road is approximately 43 km long. At typical touring speeds, expect around 35 minutes of driving end to end, excluding stops.

Is Quanbun Downs Road sealed?+

No. Quanbun Downs Road is unsealed for its entire scored length. A vehicle suited to gravel or dirt is recommended.

Is Quanbun Downs Road good for motorcycles?+

Not really. Quanbun Downs Road scores 3.5/10 for motorcycles. Look for higher-rated alternatives nearby.

Can I drive Quanbun Downs Road in a caravan?+

Not recommended. Quanbun Downs Road scores 3.8/10 for caravans due to geometry, surface or gradient. Consider an alternative route if towing.

Is Quanbun Downs Road suitable for a 4WD?+

Quanbun Downs Road scores 3.8/10 for 4WDs. Passable but not a standout. Check recent condition reports for surface state.

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Road data last updated: 2 May 2026. Scores are based on road geometry, surface, and traffic data. Always drive to conditions and follow local road rules.

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