HVS Update 17-2022

Update to certain conditions within the oversize operating conditions.

Please be advised that the following amendments have been made to the Class 1 Oversize Period Permit Operating Conditions and the Single Trip OSOM Vehicle Standard Operating Conditions:

  • Section 5 within the Class 1 Oversize Period Permit Operating Conditions and the Single Trip OSOM Vehicle Standard Operating Conditions have been amended to clarify where an oversize vehicle needs to momentarily avoid a roadside obstacle, it is not considered a contraflow movement.
  • Sub-clause 7.6.3 Single Trip OSOM Vehicle Standard Operating Conditions has been amended to clarify ambient temperature as determined by the Bureau of Meteorology.
  • Clause 5.8 within the Single Trip OSOM Vehicle Standard Operating Conditions has been amended to include Richardson Street and allow contraflow on GNH as per Traffic Guidance Scheme TGS RM0395-18-11 when accessing the Swagman Roadhouse.
  • Updated convoy provisions within the Class 1 Oversize Period Permit Operating Conditions and the Single Trip OSOM Vehicle Standard Operating Conditions to allow 3 in convoy on Wodgina Access Road and Pippingarra Access Road, Wodgina.
  • Section 5 within the Class 1 Oversize Period Permit Operating Conditions and the Single Trip OSOM Vehicle Standard Operating Conditions has been amended to include the requirement to obtain an Aboriginal Affairs Planning Authority Lands Permit, prior to travelling on Great Central Road, which was previously a condition within the permit itself.
  • Amended the finish time for approved night hours from 5:00 am to sunrise under Clause 13.1 within the Single Trip OSOM Vehicle Standard Operating Conditions, for RAVs up to 8.5 metres wide and 50 metres long and under clause 11.1 within the Class 1 Oversize Period Permit Operating Conditions, for RAVs up to 5.5 metres wide and 40 metres long.
  • Added a note under Clause 7.5 within the Single Trip OSOM Vehicle Standard Operating Conditions about drive over structure locations being published in the RAV Mapping Tool.

In addition to the above changes, Appendix 5 within the Single Trip OSOM Vehicle Standard Operating Conditions has been amended to include updated Escort and Pilot Vehicle requirements, as outlined below:

  • The requirement for a Traffic Escort has been replaced with a third pilot vehicle when accompanying an OSOM vehicle over 40 metres in length, up to 50 metres in length, outside the metropolitan area and within the metropolitan area between 9:30 pm and 5:00 am, excluding Freeways.
This change has come about as part of our ongoing commitment to consider ways to assist in reducing the demand for TEW bookings, without negatively impacting road safety. Previously, an OSOM vehicle exceeding 40 metres in length has required one (1) Escort Vehicle and two (2) Pilot Vehicles.

By replacing the Escort Vehicle requirement with a Pilot Vehicle, it ensures the movement of the OSOM vehicle can continue to be managed safely, whilst making additional TEW resources available to be redirected to other booking requests for higher risk OSOM movements.

As a result of this change, Main Roads will be refunding all current TEW bookings for movements that fall within the new requirements and our Traffic Escort Scheduling Team will be contacting relevant transport operators accordingly.

The revised operating conditions are now available on the Oversize Overmass (OSOM) page on our website.

For further information please contact the Heavy Vehicle Helpdesk on 138 486 or email hvs@mainroads.wa.gov.au

Heavy Vehicle Services
14 April 2022

Acknowledgement of country

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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