Gold Coast Rapid Transit
The Gold Coast Rapid Transit consists of 13km of dual track light rail system
in a shared Road and Rail corridor, connecting the Griffith University to
Broadbeach. Technically challenging, the light rail system occupies much of the
existing road corridor, requiring alterations to the functionality of the road
network. This design required very close coordination between the rail and road
alignments to ensure an integrated approach. As part of a multi-discipline
design team, Arup also delivered the designs for four bridges, numerous
retaining walls, track form, stormwater drainage, system conduits and pits,
lighting, traffic signals, and more. It was decided the teams would deliver the
detailed design as a fully integrated 12d project, with 12d design teams
including rail, road, and stormwater drainage.
The project involved many inter-discipline interfaces using 12d Model with 12d
design/survey teams including rail alignments, road design, stormwater drainage,
survey (MacDow) and utility services (Cardno).
were required to ensure all disciplines were using up to date and controlled
information as the design progressed.
required to allow resources to come onto the project and allow multiple
designers to work on the modelling at one time.
The decision was made to produce the design in 12d Model to
enable all relevant disciplines to work from 12d and utilise the model sharing
capability. Doing this would enable a truly coordinated approach to the multi-disciplinary
Stringent processes were put in place to utilise model sharing between
disciplines. As the different
disciplines had varying delivery dates on design packages,
control of the information shared was important.
The project was broken down into
many small 12d Model projects to allow flexibility for the design teams and
resources. To assist with this, the number of design models produced was
minimised by consolidating design information where possible (many functions
create strings on the one design model). All models were then
form the complete design. For this process to run smoothly, a rigid modelling
convention was set up and used by the design teams.
The rail alignments team - comprising of five designers - needed to be
immediately up-skilled in the use of 12d Model to deliver the rail design.
A number of light rail specific macros were developed by 12d in
consultation with the Arup team, to address their particular project
“As Queensland’s first ever light rail system, the Gold Coast Light Rail
project represents a major step forward in transforming the city into a modern,
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—City of Gold Coast website