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Panawonnica Rail Service Road (RTIO)

WAUnclassified road76.8 km147 segments
2.4Sports
6.4Safety
76.8 kmTotal length
147Segments
28Grey spot segments
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Panawonnica Rail Service Road (RTIO) is a 77 km unsealed road in Western Australia, Australia. It scores 7.4/10 for 4WDs with flowing corners and fair surface.

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Vehicle scores
2.4/10
SPTSportsSealed roads, curviness, mountain passes
5.7/10
MOTMotoTight bends, switchbacks, technical roads
4.0/10
EVEVSmooth surface, sealed roads, range-friendly
7.4/10
4WD4WDGravel access, off-road suitability
2.6/10
VANCaravanSmooth sealed, gentle grades, no steep passes
Segment quality distribution
Sports score - 147 segments
Poor (<4)100%

Sports score IQR: 2.4 - 2.4

Surface
Surface coverage
Unsealed100%
Score breakdown
Median component scores across all segments
Surface
5.0
Median surface quality. Smooth sealed asphalt scores 10. Chipseal 8. Gravel 5.
Curviness
6.5
Median curviness. Higher scores mean more bends per kilometre.
Speed
10.0
Speed limit suitability. Sweet spot is 60-110 km/h.
Road classUnclassified road
8.0
Road classification. Motorways score zero. Tertiary roads score 9.
Traffic
9.0
Estimated traffic density. Lower traffic = higher score.
Elevation
5.1
Elevation change per kilometre. More climbing = higher score.
Road intel
Grey spots28 of 147 segments
Segments where curvature is tighter than the posted speed limit. Geometry alone flags these as higher risk, no crash history required.
Wet riskElevated
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 147 segments· 5 years of data
28
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.

Road environment
Geometry and climate-derived risk indicators
Wet road exposure61%
Night driving risk63%
Wind exposure54%
Sun glare risk59%
Wildlife strike risk11%

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

Segments
Top 147 segments by sports score
IDSurfaceLengthSportsMotoEV
#141529079Gravel0.54 km2.46.04.0#141529085Gravel0.50 km2.46.04.0#141528996Gravel0.65 km2.46.04.0#141529041Gravel0.46 km2.44.84.0#141528987Gravel0.50 km2.45.94.0#141529068Gravel0.47 km2.46.04.0#141529120Gravel0.50 km2.46.04.0#141529119Gravel0.50 km2.46.04.0#141529118Gravel0.50 km2.46.04.0#141529116Gravel0.50 km2.46.04.0#141529115Gravel0.50 km2.46.04.0#141529114Gravel0.34 km2.46.04.0#141529113Gravel0.65 km2.46.04.0#141529112Gravel0.35 km2.46.04.0#141529111Gravel0.45 km2.46.04.0#141529109Gravel0.55 km2.46.04.0#141529108Gravel0.65 km2.46.04.0#141529107Gravel0.65 km2.46.04.0#141529103Gravel0.48 km2.46.04.0#141529101Gravel0.50 km2.46.04.0#141529100Gravel0.65 km2.46.04.0#141529093Gravel0.50 km2.46.04.0#141529090Gravel0.51 km2.46.04.0#141529087Gravel0.59 km2.46.04.0#141529072Gravel0.50 km2.46.04.0#141529071Gravel0.44 km2.46.04.0#141529067Gravel0.65 km2.46.04.0#141529066Gravel0.61 km2.46.04.0#141529054Gravel0.42 km2.46.04.0#141529053Gravel0.65 km2.46.04.0#141529028Gravel0.65 km2.46.04.0#141529027Gravel0.40 km2.46.04.0#141529026Gravel0.65 km2.46.04.0#141529045Gravel0.65 km2.46.04.0#141529104Gravel0.46 km2.46.04.0#141528997Gravel0.43 km2.45.54.0#141529038Gravel0.51 km2.44.84.0#141528990Gravel0.50 km2.44.84.0#141529032Gravel0.58 km2.46.04.0#141529106Gravel0.65 km2.46.04.0#141529011Gravel0.57 km2.46.04.0#141529029Gravel0.65 km2.46.04.0#141529044Gravel0.50 km2.46.04.0#141529075Gravel0.50 km2.46.04.0#141528976Gravel0.50 km2.44.64.0#141529102Gravel0.65 km2.46.04.0#141529077Gravel0.41 km2.44.84.0#141529023Gravel0.46 km2.45.94.0#141529097Gravel0.35 km2.46.04.0#141529019Gravel0.50 km2.45.24.0#141529084Gravel0.56 km2.46.04.0#141529081Gravel0.48 km2.45.84.0#141529048Gravel0.41 km2.45.84.0#141528978Gravel0.57 km2.46.04.0#141529082Gravel0.50 km2.46.04.0#141529051Gravel0.37 km2.46.04.0#141529074Gravel0.38 km2.46.04.0#141529007Gravel0.65 km2.46.04.0#141528999Gravel0.44 km2.46.04.0#141528995Gravel0.65 km2.45.94.0#141529015Gravel0.50 km2.45.24.0#141529036Gravel0.43 km2.45.74.0#141528980Gravel0.65 km2.45.84.0#141529099Gravel0.65 km2.46.04.0#141529088Gravel0.65 km2.46.04.0#141529049Gravel0.37 km2.44.84.0#141529117Gravel0.50 km2.46.04.0#141528988Gravel0.50 km2.45.24.0#141529059Gravel0.61 km2.46.04.0#141529020Gravel0.50 km2.44.84.0#141529018Gravel0.65 km2.46.04.0#141529056Gravel0.40 km2.46.04.0#141529063Gravel0.43 km2.46.04.0#141529060Gravel0.65 km2.46.04.0#141529006Gravel0.50 km2.46.04.0#141529091Gravel0.59 km2.46.04.0#141529010Gravel0.44 km2.46.04.0#141529073Gravel0.38 km2.46.04.0#141529037Gravel0.37 km2.46.04.0#141529046Gravel0.56 km2.46.04.0#141529055Gravel0.65 km2.46.04.0#141529021Gravel0.63 km2.46.04.0#141528977Gravel0.65 km2.45.84.0#141529022Gravel0.50 km2.44.84.0#141529000Gravel0.50 km2.44.64.0#141529122Gravel0.15 km2.46.04.0#141529078Gravel0.57 km2.46.04.0#141528984Gravel0.50 km2.45.24.0#141529058Gravel0.38 km2.46.04.0#141529057Gravel0.65 km2.46.04.0#141529095Gravel0.65 km2.46.04.0#141529061Gravel0.46 km2.45.54.0#141529001Gravel0.44 km2.46.04.0#141529025Gravel0.65 km2.46.04.0#141529004Gravel0.49 km2.44.64.0#141529042Gravel0.65 km2.46.04.0#141529080Gravel0.49 km2.46.04.0#141529065Gravel0.41 km2.45.04.0#141529033Gravel0.41 km2.46.04.0#141529043Gravel0.57 km2.46.04.0#141529047Gravel0.44 km2.44.64.0#141528981Gravel0.65 km2.46.04.0#141529092Gravel0.41 km2.46.04.0#141529040Gravel0.51 km2.45.74.0#141529030Gravel0.61 km2.46.04.0#141528992Gravel0.47 km2.45.74.0#141529064Gravel0.38 km2.45.14.0#141529014Gravel0.65 km2.46.04.0#141529110Gravel0.37 km2.46.04.0#141529094Gravel0.65 km2.46.04.0#141529105Gravel0.65 km2.46.04.0#141529098Gravel0.50 km2.46.04.0#141528986Gravel0.50 km2.44.84.0#141529035Gravel0.50 km2.45.74.0#141528994Gravel0.50 km2.46.04.0#141528998Gravel0.50 km2.44.64.0#141529017Gravel0.53 km2.46.04.0#141528993Gravel0.65 km2.46.04.0#141528982Gravel0.65 km2.46.04.0#141529013Gravel0.50 km2.44.64.0#141529005Gravel0.50 km2.44.84.0#141529076Gravel0.50 km2.45.44.0#141529070Gravel0.44 km2.46.04.0#141529034Gravel0.46 km2.46.04.0#141529086Gravel0.58 km2.46.04.0#141529083Gravel0.65 km2.46.04.0#141528991Gravel0.50 km2.44.94.0#141529089Gravel0.65 km2.46.04.0#141529069Gravel0.65 km2.46.04.0#141528979Gravel0.49 km2.45.24.0#141528985Gravel0.37 km2.44.84.0#141528983Gravel0.50 km2.46.04.0#141528989Gravel0.50 km2.44.64.0#141529009Gravel0.65 km2.45.74.0#141529024Gravel0.50 km2.45.34.0#141529031Gravel0.50 km2.46.04.0#141529050Gravel0.65 km2.46.04.0#141529121Gravel0.50 km2.46.04.0#141529003Gravel0.36 km2.45.84.0#141529016Gravel0.50 km2.44.64.0#141529002Gravel0.65 km2.45.74.0#141529008Gravel0.50 km2.46.04.0#141529012Gravel0.50 km2.44.94.0#141529052Gravel0.65 km2.46.04.0#141529062Gravel0.42 km2.46.04.0#141529096Gravel0.39 km2.46.04.0#141529039Gravel0.53 km2.44.84.0
API reference
Road aggregate data via the Contour API
GET/api/v1/roads/panawonnica-rail-service-road-rtio-waRoad aggregate - scores, stats, risk profile, activity, segment list
GET/api/v1/roads/search?q=Panawonnica%20Rail%20Service%20Road%20(RTIO)&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 Panawonnica Rail Service Road (RTIO)?+

Panawonnica Rail Service Road (RTIO) is approximately 77 km long. At typical touring speeds, expect around 65 minutes of driving end to end, excluding stops.

Is Panawonnica Rail Service Road (RTIO) sealed?+

No. Panawonnica Rail Service Road (RTIO) is unsealed for its entire scored length. A vehicle suited to gravel or dirt is recommended.

Is Panawonnica Rail Service Road (RTIO) good for motorcycles?+

It is passable. Panawonnica Rail Service Road (RTIO) scores 5.7/10 for motorcycles. Consider it a connector rather than a destination ride.

Can I drive Panawonnica Rail Service Road (RTIO) in a caravan?+

Not recommended. Panawonnica Rail Service Road (RTIO) scores 2.6/10 for caravans due to geometry, surface or gradient. Consider an alternative route if towing.

Is Panawonnica Rail Service Road (RTIO) suitable for a 4WD?+

Yes. Panawonnica Rail Service Road (RTIO) scores 7.4/10 for 4WDs, with the right mix of surface and terrain character to be worth the trip.

Are there any dangerous sections on Panawonnica Rail Service Road (RTIO)?+

Contour has identified 28 grey spots on Panawonnica Rail Service Road (RTIO) - 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: 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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