As Australia’s population grows, Tonkin is committed to creating transport infrastructure that enables the safe and efficient movement of people and freight.
Road and highway design
As Australia’s population grows, transport infrastructure that enables the safe and efficient movement of people and freight is more important than ever. Having undertaken road and highway design projects around Australia over many decades, Tonkin understands the importance of balancing road design criteria and standards with safety and cost outcomes, to deliver a value for money solution.
Transport planning
Sustainable, efficient transport is key to a strong economy. Tonkin plans the complex movement of people and goods based on this simple premise. We provide comprehensive transport planning services to allow for investment in road, rail, air, sea and intermodal transport projects to be maximised. Our expertise is demonstrated through our involvement in projects ranging from small-scale through to complex.


Aerodrome design
Tonkin has a long, successful history in aerodrome design and construction, dating back to the original Kangaroo Island Airport upgrade in 1984. Our expertise stretches throughout the life cycle of aviation facilities and includes technical feasibility of new facilities, engineering design of airside and landside facilities, construction stage services and asset management services for existing facilities.
Design and construction verification
Our pragmatic approach to verification provides clients with an efficient process that enables project milestones to be met whilst managing risk. Tonkin’s team of certified, experienced engineers and designers have provided design and construction verification services on a range of transport projects across Australia. Having designed, certified and undertaken construction verification on key infrastructure projects over many decades, Tonkin understands the importance of collaborative working relationships with contractors, designers and clients and that a pragmatic approach is often required when resolving project issues.
Rail infrastructure
Tonkin provides rail infrastructure services across multiple stages of the project and asset lifecycle including planning and design, construction support and verification, asset management, maintenance and upgrades. We have a specialist team of transport engineers who are highly skilled at delivering rail network solutions. As a leading infrastructure consultant, Tonkin’s transport team understands the challenges faced by local communities and state and local governments and can address these issues to meet prevailing needs. As such, we can provide ‘big picture’ review of rail infrastructure, from transport studies into freight and passenger rail demands, through to detailed infrastructure design.
Transport structures
With increases in urban density, high speed transport networks and the safe separation of transport modes, transport structures are now an essential and intrinsic component of transport infrastructures projects. Design, construction and management of these structures require a sound appreciation of competing needs such as capital budgets, constructability, durability, service life and stakeholder objectives.

Traffic Engineering
Tonkin offers innovative and practical solutions for traffic engineering that provide for a range of road users including commuter traffic, public transport, freight transport, cyclists and pedestrians. Our team of traffic engineers deliver effective transport networks, recognising the role transport plays in the community and the need to design for the varying requirements of stakeholders and members of the community.
Tonkin's traffic team provides comprehensive services including traffic modelling, road safety audits and safe systems assessments, traffic impact assessments, traffic management and parking studies, and heavy vehicle route assessments.
Tonkin's traffic team provides comprehensive services including traffic modelling, road safety audits and safe systems assessments, traffic impact assessments, traffic management and parking studies, and heavy vehicle route assessments.