HVS-Update 38-2022

OSOM vehicle mandatory safety inspection after an on-road incident.

With the concerning number of recent on-road incidents involving Over Size Over Mass (OSOM) vehicles, Main Roads Heavy Vehicle Services (HVS) has consulted with industry, WA Police and the Department of Transport in order to establish the following safety protocols, which will be implemented immediately:

  1. If an OSOM vehicle being escorted by a Main Roads Traffic Escort Warden (TEW) has been involved in an on-road incident, consisting of a heavy impact to the OSOM vehicle or its load that has resulted in visible damage, the OSOM vehicle must be moved to the nearest safe location, such as a parking bay or other suitable area, where the OSOM vehicle will not constitute a hazard to traffic.
  2. The OSOM vehicle must remain at the safe location until the vehicle and its load have been inspected by a certified Heavy Vehicle Mechanic or a qualified Mechanical Engineer, to ensure that the OSOM vehicle and its load are safe to continue the journey.
  3. Prior to the OSOM vehicle being allowed to continue the journey, the Heavy Vehicle Mechanic or Mechanical Engineer must provide written notification to HVS, declaring the OSOM vehicle and its load have been inspected and are safe to continue. An Vehicle Inspection Checklist is available on the Oversize Overmass (OSOM) page to ensure key areas of concern are inspected.
  4. In the event of the OSOM vehicle and its load having to remain at the place of impact due to the serious nature of the damage, the Transport Operator is to immediately organise Traffic Management and contact our Customer Information Centre on 138 138 for assistance.

These protocols have been implemented to ensure an OSOM vehicle does not continue the journey when the structural integrity of vehicle and load restraint components may have been compromised, which has the potential for catastrophic consequences.

Transport Operators are also reminded to make themselves aware of their responsibilities under the Work Health and Safety Act 2020, including, but not limited to, their responsibility to report incidents to WorkSafe and their duty of care regarding the provision and maintenance of safe equipment.

For further information, please contact our Heavy Vehicle Help Desk on 138 486 or email hvs@mainroads.wa.gov.au


Heavy Vehicle Services
3 August 2022

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The Government of Western Australia acknowledges the traditional custodians throughout Western Australia and their continuing connection to the land, waters and community. We pay our respects to all members of the Aboriginal communities and their cultures; and to Elders both past and present.

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