News
Preparing a Transport Management Plan for a High Risk Over Size Over Mass Movement
M
ain 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/
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WATM • May 2020
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
