Engineers. Managers. Planners

Garden City Bus Interchange Upgrade

Garden City Bus Interchange Upgrade

This project comprised preparation of a P90 cost estimate for the upgrade of the Garden City Bus Interchange (GCBI) in Upper Mt Gravatt. The works associated with the upgrade include earthworks, pavement construction, stormwater drainage, public utility plant protection, pavement markings and signage. As part of the project, a Qualitative Risk Register and associated report identifying and detailing the planned and unplanned risks to the project was prepared in addition to coordinating a risk workshop with key project stakeholders. 

Geleon provided the following services:

  •  Identified and prepared a schedule of standard work items in accordance with  Transport and Main Roads (TMR) specifications;
  •  Undertook a quantity take-off and prepared a bill of quantities;
  •  Prepared a P90 cost estimate in accordance with the TMR Project Cost Estimating  Manual;
  •  Performed a probabilistic Monte Carlo simulation using @Risk to quantify the  construction contractors, principles and project risks;
  •  Prepared a report detailing the estimating process, methodology and presented the  estimated costs; and
  •  Coordinated a qualitative risk workshop with key stakeholders, and prepared a  qualitative risk and opportunity register and associated report. 



Quick Facts




September 2015


Upper Mt Gravatt, Qld

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