Preparing a Transport Management Plan for a High Risk- OSOM Movement

Main Roads has recently amended its policy for the movement of high-risk Over Size Over Mass (OSOM) vehicles to extend the hours of operation, and formalise the requirements for a Transport Management Plan (TMP).

Previously, high-risk OSOM vehicles were restricted to moving between the hours of 11.00pm and 5.00am, Sunday to Thursday nights. The changes to the Policy now mean that high-risk OSOM vehicles can move between 9:30pm and 5.00am, any night of the week.

To assist the transport industry with these changes, HVS has developed guidelines for the preparation of a TMP for these types of movements. The TMP describes how high-risk OSOM vehicle movements will be safely undertaken, by documenting plans, procedures and other operational activities that are required to manage risks identified in the route survey.

A TMP is required for all high-risk OSOM movements, including: • Larger OSOM vehicles, generally exceeding 8.5 metres in width and/ or 50 metres in length, that require significant contraflow movements or require other special arrangements to manoeuvre around road infrastructure • OSOM vehicles in excess of 3.5 metres in width and/or 25 metres in length that require access on or near a

Freeway • OSOM vehicles in excess of 5.5 metres in width and/or 30 metres in length that require access into the Perth or

Fremantle Central Zones; and • Any other OSOM vehicle that Main

Roads considers an extraordinary risk to other road users or is likely to cause excessive disruption to other road users.

The TMP must include risk management plans and procedures that will be used to safely manage situations identified in the Route Survey that require traffic management or other special arrangements to manoeuvre around road infrastructure. Only a person holding a Main Roads Accreditation in Advanced Worksite Traffic Management (AWTM) may prepare a TMP, which is required to address the following: • Positioning of the Traffic Escort and Pilots to enable appropriate management of traffic • Details of any special arrangements for manoeuvring around road infrastructure • Pre-movement briefing procedure to ensure all parties are fully aware of their roles and responsibilities • rocedure for managing bridge crossings • Procedure for removing roadside furniture, such as signage or traffic signals • Procedure for managing any merging traffic • A schedule for identifying stages of movement and the time by which each stage is expected to be completed, with a contingency plan in the event the stages have not been completed within the expected time to avoid breaching any curfew conditions • Procedure for managing a change in weather conditions that may adversely affect the stability and safety of the load • Procedure for managing poor visibility resulting from smoke or fog, where the OSOM vehicle movement will be

required to cease • Procedure for managing a mechanical failure/breakdown to ensure the OSOM vehicle is not stranded in a location that will cause significant disruption; and • Procedure for managing an accident, including emergency procedures.

The TMP should also include a Project Scope with background information regarding the transportation task (eg details of a new mine site); information on how many movements, including mass and dimensions, are required to fulfil the transportation task; and vehicle and load details, including a diagram clearly showing the dimensions of the load and the vehicle used to transport the load. The diagram must also show side, front and rear perspectives and include: • the overall width, length and height • individual axle spacings • ground contact width and ground clearance • the required axle mass for each individual axle/axle group; and • the net weight of the load and gross mass of the combination. Main Roads may require engineering

certification for excessively large or heavy loads to ensure the load is safe and suitable for road transport. A suitably qualified engineer must sign the engineering certification.

Stakeholder and community engagement must be undertaken where the movement may have a significant impact on other road users or businesses in a particular area. Engagement providing advanced warning of the disruption may include letter drops, newspaper advertisements, radio announcements and Variable Message Board notices.

Copies of other approvals, such as Western Power approval, must also be included in the TMP.

A completed TMP should be forwarded to Main Roads HVS for assessment via email permit.applications@mainroads. wa.gov.au HVS will then review the TMP to ensure it has met all of the requirements and demonstrates that the OSOM vehicle movement can be conducted safely. Depending on the complexity of the movement, the load, vehicle dimensions and the route, it could take up to four weeks to assess. Once the TMP has been reviewed and accepted, the operator will need to submit a permit application for the proposed movement.

It is important to note that an incomplete TMP may be returned with a request for further information, delaying the approval process. Please refer to the “Guidelines - Preparing a Transport Management Plan” which can be found at www.mainroads.wa.gov.au/UsingRoads/ HVS/Permits/Permits/OversizeMass/ Pages/osom.aspx document to assist you in ensuring you have included all requirements. For further information please visit the Heavy Vehicle section of our website at www. mainroads.wa.gov.au or call the Heavy Vehicle Helpdesk on 138 486.

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