Geleon were engaged by SMEC to undertake cost estimating activities for this project which involved the preparation of a Business Case to upgrade Waterford – Tamborine Road from Hotz Road to Camp Cable Road at Logan Village, Queensland.

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With current traffic predictions demonstrating that this section of roadway will reach an unacceptable capacity by approximately 2028, upgrading the existing mid-block section is required to alleviate possible safety issues arising as traffic volumes continue to increase.

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Prepared in accordance with TMR’s Project Cost Estimating Manual, a P50 / P90 Total Project Cost Estimate and associated report were prepared using a combination of unit rates and first principles estimating techniques that determined Construction Contractor's Costs, Principal's Costs, considered Planned and Unplanned Risks, Escalation and utilised @Risk software to perform a Monte Carlo simulation to ascertain the Total Project Cost at 50 and 90-percentile likelihoods.

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Estimated costs were then separated into Capex and Opex cost elements in accordance with Section 8 - Work Breakdown Summaries of the Transport Infrastructure Cost Classification Guide for Recording Expenditure - Implementation Guide for the TMR Infrastructure Asset Accounting Policy and Cost Breakdown Structures.