Perth to Bunbury Highway

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The Southern Gateway Alliance (SGA), comprising GHD, Leighton Contractors and WA Limestone in partnership with Main Roads Western Australia, was awarded the contract to build the AUD511 million new Perth to Bunbury Highway in 2006.

The Perth to Bunbury Highway project will increase the efficiency of the north-south road network and improve regional transport through a high standard road link between Perth and the south west.

This contract involves the design and construction of a 70km four-lane freeway divided road near Mandurah south of Perth and a four-lane rural highway standard, incorporating 19 bridges and five interchanges. This project also involves acquiring environmental approvals.

The SGA will deliver the highway under an alliance contract, where GHD will provide:

  • Transport planning
  • Traffic engineering
  • Civil and structural design
  • Geotechnical engineering
  • Materials technology
  • Environmental and sustainability.
  • Intelligent Transport Systems (ITS)

The project will incorporate the installation of ITS along the highway to provide real-time:

  • Traveller and user information
  • Road use information
  • Information for traffic control and incident management

The SGA created a dedicated community relations team to raise project awareness, engage the local community and build relationships with project stakeholders, including landowners and local residents. The work with the community has resulted in several key changes to the project scope, which have addressed residents’ concerns. These measures have been well received by the community and are helping to build positive relationships on which other project challenges can be faced.

As part of the final environmental assessment of the project a species of rare flora (Drakaea Elastica) was identified on the approved Perth to Bunbury Highway alignment. This plant species is protected under both Commonwealth and State legislation. Commonwealth environmental approvals for the project require that this plant be avoided by construction activities. The plants occur over the length and width of the road alignment, and as such an alternative route was identified over a 6km section of the project.

In addition, alternative alignments being considered were further constrained by a major watercourse (Serpentine River), two individual Aboriginal heritage sites and the requirement for additional land. The SGA worked with the local Aboriginal community, state environmental stakeholders and the landowner to identify an alternative highway route to address these constraints.

Bridges

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From simple, single span structures through to major landmark bridges, including the Eleanor Schonell Bridge in Brisbane and South Road Superway in Adelaide, our skills and experience present clients with a variety of cost-effective bridging solutions.

We deliver solutions for several bridge types including:

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Geotechnical

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Our services include:

Investigation

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Intelligent Transport Systems

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GHD’s multi-disciplinary team of road, rail, traffic, electrical, control, information and communications engineers has a wealth of knowledge and experience in the identification of user needs and the selection and application of Intelligent Transport Systems (ITS) technologies.

Our ITS team includes professionals with extensive experience in procurement, operation, management and maintenance. Working with us, you’ll benefit from our strategic approach to developing robust, cost-effective and compliant solutions. Your requirements are identified, interpreted and recorded on a vendor-neutral competitive basis through which the most appropriate solution and supplier are selected. We can act as an independent reviewer during the implementation process.

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Materials Technology

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Access to materials testing and research enables our professionals to develop cost-effective and timely solutions for materials-related issues.

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Road Systems

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For more than 50 years, we have delivered innovative road systems including rehabilitation, expansion and development of new highways, complex interchanges, toll roads, bridges and tunnels. Our planners and engineers provide integrated services to plan, design, construct, maintain and manage all aspects of the road corridor life cycle.

From planning and procurement through to feasibility and investigation, and design, construction, delivery and maintenance, our clients enjoy bespoke solutions for roads that incorporate masterplanning, funding and economic analysis, transport planning, asset management, environmental management, risk management and more.

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Roads & Highways

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There is a sense of urgency to deliver smarter, safer and more affordable roads to assist in improving traffic flow. This demands efficient road infrastructure that offers network reliability, certainty of journey time and is sensitive to the environment.

We assist out clients to assess the life of their asset portfolio, explore how to maximise capacity of existing infrastructure and find least life cost alternatives to enhance the performance of their network.

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Transport Facilities

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Our services cover the following:

  • Traffic engineering
  • Transport planning
  • Road, rail and aviation planning
  • Coastal and marine planning
  • Transport terminals
  • Integrated transport systems
  • Public transport strategies
  • Cyclist and pedestrian planning
  • Carpark planning and design
  • Transport economics

These services support feasibility and infrastructure planning and design works for urban developments, roads and highways, pedestrian, cycling, public transport infrastructure, water and air borne transport systems.

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Transport Economics & Logistics

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The efficient movement of goods and people is necessary for our quality of life, economic prosperity and productivity. A sustainable transport system is supported by appropriate land use policies, pricing, regulations and demand management that underpin integrated supply chains and public transport services.

We deliver transport demand, traffic pattern and patronage studies, transport safety reviews, and strategic route planning investigations with detail of their impact on industry and the community. We offer sustainable transport solutions to support future development proposals, and asssist our clients to develop a strong business case to support sustainable change.

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Transportation

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Economic and population growth, greater urbanisation and increased mobility are boosting demand for new infrastructure and services straining the capacity and effectiveness of existing assets. Single mode approaches are no longer viable as governments and stakeholders recognise the need for multi-modal solutions across the whole integrated network.

Across the whole transport spectrum of airports, maritime, roads and highways, rail bridges and logistics, our team provides integrated transport services throughout the project lifecycle - from initial policy, transport planning, economics and business case advice, through concept, procurement, detailed design and construction to operations, maintenance and asset management.

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Transportation Planning & Traffic Engineering

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GHD brings a fresh approach to integrated transport with an innovative, dynamic, highly motivated and enthusiastic team of traffic engineers and transport planners who harness a great depth of industry experience and knowledge.

Whether you require high level policy and strategic advice at the beginning of a project or detailed engineering advice at the design stage, you will benefit from the commitment and dedication of our people. We pride ourselves on staying informed of the latest industry thinking and trends through regular involvement in industry bodies, conferences and seminars.

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