New safety cameras on key WA road: design and integration notes for engineers
Reviewed by Joe Ashwell
First reported on Roads & Infrastructure (AU)
30 Second Briefing
New fixed safety cameras on the Mitchell Freeway at Karrinyup Road in Perth are now enforcing seatbelt use and mobile phone offences, using automated image analytics on vehicles travelling at full freeway speeds. The system joins existing fixed safety cameras on the Kwinana Freeway and Forrest Highway, extending continuous enforcement coverage across key north–south corridors linking Perth’s CBD and northern suburbs. For road designers and traffic engineers, the installation signals ongoing integration of non-intrusive, overhead enforcement hardware into high-speed urban freeway cross-sections without major geometric changes.
Technical Brief
- Fixed camera gantries are integrated above live lanes, avoiding pavement cuts or in-carriageway hardware.
- Non-intrusive mounting reduces maintenance access risks compared with verge-mounted poles near high-speed traffic.
- Data from offence detections can feed into speed limit reviews, ramp design and barrier placement decisions.
- For future freeway upgrades, designers must now routinely accommodate enforcement gantry loads, clearances and sightline envelopes.
Our Take
Main Roads WA’s move in Western Australia aligns with the “Roads Review: Looking Forward” theme in Roads & Infrastructure Magazine, where 2026 optimism is tied to valuing people and safety culture rather than just mega-project delivery.
Within our 839 Infrastructure stories, safety-tagged pieces involving Perth and wider Western Australia often precede or accompany capacity upgrades, suggesting these cameras may be an enabling step for future project works on this key corridor.
Because Roads & Infrastructure Magazine appears both as a subject company here and in the recent industry review, its coverage of Main Roads WA’s safety technology is likely to shape practitioner expectations about best-practice road safety standards across Australia.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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