Design efficiencies in one of two major Perth transport infrastructure projects have the potential to save the Western Australian Department of Transport up to $6 million. The project in which the major savings are possible is the Kwinana Freeway Bus Transitway; the other is the Causeway Bus Lanes and Victoria Park Transfer Station. GHD, consultants in management, engineering and environment, prepared the designs for both projects.
Causeway Bus Lanes and Victoria Park Transfer Station
This project provides for construction of two exclusive bus lanes on the Causeway Bridge over the Swan River, reducing general traffic lanes from six to four, and a new passenger transfer station at the Victoria Park end of the Causeway. It will be taken from concept plan stage to fully documented construction.
The scope includes a review of the original concepts in the light of a traffic safety audit. A number of improvements including road geometry lane mergers and alignments were identified and implemented.
Kwinana Freeway Bus Transitway
A 12-kilometre dedicated two-way bus transitway in the median of the Kwinana Freeway from the Narrows Bridge will connect with the regional road network at Canning Highway, Leach Highway and South Street. Comprehensive concept plans and reports for a design and construct contract to be let later in the year were prepared. The scope was then extended to include a complete redesign of the Canning Highway station concept and an environmental study.
GHD engineers and architects, working in close cooperation with the client's staff, have identified alternative solutions which have the potential to save up to $6 million, depending on the final configuration and staging of the project, according to Project Manager Paul Fisher.