There can be a wide differential between the relative complexities of particular projects, for example 'iconic' buildings versus 'normal' office facilities, and new developments on clear sites ('greenfields') versus refurbishments and/or upgrade projects ('brownfields'). Having prioritised projects using criteria 1 to 3, Traditional projects were selected on the basis of criteria 4 and 5. Where the number of potential Traditional projects was large (e.g. road projects), a random selection process was adopted to achieve criterion 4.
We concentrated on the eastern coast of Australia due to the larger number of projects undertaken in the region.