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Ralston Road

WASecondary road22.4 km49 segments
5.0Sports
7.9Safety
22.4 kmTotal length
49Segments
49Grey spot segments
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Ralston Road is a 22 km sealed secondary route in Western Australia, Australia. It scores 6.3/10 for caravans with straight corners and excellent surface.

Map showing location of Ralston Road

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Vehicle scores
5.0/10
SPTSportsSealed roads, curviness, mountain passes
4.7/10
MOTMotoTight bends, switchbacks, technical roads
5.4/10
EVEVSmooth surface, sealed roads, range-friendly
3.5/10
4WD4WDGravel access, off-road suitability
6.3/10
VANCaravanSmooth sealed, gentle grades, no steep passes
Segment quality distribution
Sports score - 49 segments
Excellent (8+)2%Good (6-8)18%Fair (4-6)80%

Sports score IQR: 5.0 - 5.8

Surface
Surface coverage
Sealed78%Unsealed22%
Score breakdown
Median component scores across all segments
Surface
10.0
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
4.0
Speed limit suitability. Sweet spot is 60-110 km/h.
Road classSecondary road
8.0
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.
Road intel
Grey spots49 of 49 segments
Segments where curvature is tighter than the posted speed limit. Geometry alone flags these as higher risk, no crash history required.
Wet riskModerate
Average wet sensitivity across segments, based on surface, drainage, gradient and local rainfall.
Night riskPresent
Visibility at night across the road, weighted by lighting, tree canopy density and curves.
Wind exposureModerate
Average wind exposure across segments, based on measured wind speed, terrain and shelter. Relevant for motorcycles and caravans.
Sun glarePresent
East-west segments exposed to sunrise and sunset glare, adjusted for tree cover.
Crash history
Aggregated across all 49 segments· 5 years of data
49
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.

When is this road risky?
Crash conditions - share of recorded crashes by circumstance

Wet road crashes

Crashes that occurred in wet conditions

0%

Night crashes

Crashes that occurred after dark

0%

Based on 5 years of crash records linked to road geometry. Crash breakdown (night, wet, weekends): VIC data 2012-2024. Other states show aggregate counts only.

Road environment
Geometry and climate-derived risk indicators
Wet road exposure34%
Night driving risk37%
Wind exposure51%
Sun glare risk53%
Wildlife strike risk10%

Risk values derived from road geometry, orientation, weather station data, and satellite canopy cover. 0 = minimal risk, 1 = maximum risk.

Segments
Top 83 segments by sports score
IDSurfaceLengthSportsMotoEV
#98644544Asphalt0.36 km8.48.38.2#98644529Asphalt0.65 km7.97.98.0#98644527Asphalt0.50 km7.87.77.9#98644536Asphalt0.41 km7.87.77.7#98644537Asphalt0.50 km7.87.77.7#98644498Asphalt0.50 km7.37.27.3#98644502Asphalt0.50 km6.76.56.8#116031275Asphalt0.14 km6.66.36.6#98644542Asphalt0.50 km6.15.76.3#98644541Asphalt0.50 km6.15.76.3#98644543Asphalt0.65 km6.05.56.1#98644539Asphalt0.46 km6.05.85.8#98644526Asphalt0.11 km5.85.66.1#98644540Asphalt0.12 km5.75.56.0#98644530Asphalt0.50 km5.45.15.9#98644525Asphalt0.04 km5.35.05.9#98644500Asphalt0.50 km5.25.05.8#98644514Asphalt0.50 km5.25.05.8#98644509Asphalt0.50 km5.25.05.8#98644532Asphalt0.50 km5.25.05.8#98644516Asphalt0.50 km5.25.05.8#98662917Asphalt0.50 km5.28.08.8#98644528Asphalt0.50 km5.14.85.5#98644521Asphalt0.50 km5.04.75.4#98644523Asphalt0.50 km5.04.75.4#98644524Asphalt0.40 km5.04.75.4#98644535Asphalt0.41 km5.04.75.4#98644534Asphalt0.50 km5.04.75.4#98644533Asphalt0.50 km5.04.75.4#98644499Asphalt0.50 km5.04.75.4#98644501Asphalt0.50 km5.04.75.4#98644515Asphalt0.47 km5.04.75.4#98644505Asphalt0.50 km5.04.75.4#98644510Asphalt0.50 km5.04.75.4#98644512Asphalt0.50 km5.04.75.4#98644513Asphalt0.50 km5.04.75.4#98644517Asphalt0.46 km5.04.75.4#98644518Asphalt0.50 km5.04.75.4#98644519Asphalt0.50 km5.04.75.4#98644522Asphalt0.50 km5.04.75.4#98662919Asphalt0.33 km4.97.58.2#98644497Asphalt0.19 km4.84.55.1#98644503Asphalt0.50 km4.84.55.1#98644504Asphalt0.50 km4.84.55.1#98644506Asphalt0.50 km4.84.55.1#98644507Asphalt0.50 km4.84.55.1#98644508Asphalt0.50 km4.84.55.1#98644511Asphalt0.50 km4.84.55.1#98644520Asphalt0.50 km4.84.55.1#98644531Asphalt0.50 km4.84.55.1#98644538Asphalt0.50 km4.84.55.1#98648081Paved0.04 km4.84.55.4#98662928Asphalt0.27 km4.77.27.8#98648080Paved0.10 km4.54.35.0#98648082Paved0.16 km4.54.34.9#98662924Asphalt0.38 km4.36.67.5#98662920Asphalt0.20 km4.26.47.3#98662921Asphalt0.37 km4.16.27.2#98662922Asphalt0.24 km4.06.17.0#99103840-0.14 km3.96.26.6#99103839-0.14 km3.96.26.6#99103832-0.52 km3.96.26.6#98662925Asphalt0.25 km3.35.06.1#98662918Asphalt0.49 km3.35.06.1#99103833-0.50 km3.35.15.4#99103830-0.36 km3.25.15.5#98662927Asphalt0.13 km3.24.75.7#98662926Asphalt0.24 km3.24.75.7#98662923Asphalt0.01 km3.14.55.4#99103838-0.19 km2.94.65.3#99103834-0.51 km2.94.65.2#99103837-0.38 km2.94.65.1#99103831-0.58 km2.94.55.1#99103836-0.50 km2.74.24.6#99103835-0.48 km2.74.24.6#99103828Unpaved0.44 km2.44.04.0#99103823Unpaved0.35 km2.44.34.0#99103824Unpaved0.50 km2.45.44.0#99103826Unpaved0.50 km2.43.94.0#99103822Unpaved0.14 km2.45.04.0#99103829Unpaved0.28 km2.33.84.0#99103825Unpaved0.50 km2.33.84.0#99103827Unpaved0.50 km2.23.53.8
API reference
Road aggregate data via the Contour API
GET/api/v1/roads/ralston-road-waRoad aggregate - scores, stats, risk profile, activity, segment list
GET/api/v1/roads/search?q=Ralston%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 Ralston Road?+

Ralston Road is approximately 22 km long. At typical touring speeds, expect around 1 hour of driving end to end, excluding stops.

Is Ralston Road sealed?+

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

Is Ralston Road good for motorcycles?+

It is passable. Ralston Road scores 4.7/10 for motorcycles. Consider it a connector rather than a destination ride.

Can I drive Ralston Road in a caravan?+

Yes. Ralston Road scores 6.3/10 for caravans, making it a reasonable choice for towing. Watch for changes in surface and any steep gradients.

Are there any dangerous sections on Ralston Road?+

Contour has identified 49 grey spots on Ralston 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: 24 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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