• 40 Years of Creating Remarkable Journeys

    This year we celebrate TDG's 40th birthday and we would love to share our journey with you.

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  • We're recruiting New Graduates


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  • Journeys

    Twice a year we publish Journeys to keep TDG clients and friends up to date with the latest developments, news and views in traffic engineering and transportation planning.

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  • Since 2009 TDG have assisted Meridian Energy in providing expert advice relating to the various transport activities associated with Project Hurunui Wind. Read about this project and more in our project portfolio.

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about us

TDG is New Zealand’s largest specialist transportation engineering consultancy offering a full range of professional services in transportation: engineering, planning, modelling, analysis and design. With offices throughout the country, our work spans large and small developments, in both the private and public sectors. Wherever people and transportation meet, that's where we are. Making that meeting point better, is what we do.

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featured project

Unanderra Town Centre Access and Movement Strategy

Unanderra Town Centre Access and Movement Strategy

Unanderra (NSW, Australia) is a suburban Town Centre with a population of just under 6,000 persons. It’s defined as a Major Town in Regional Illawarra Planning instruments. It sits within the context of the Wollongong City, a population of about...

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