bairnsdale road improvement plan 

Development around Bairnsdale has created new residential space for the town’s growing population. This expansion has created more trips on the local road work and congestion in the morning and evening peak periods, notably over the two river crossings connecting the Bairnsdale CBD to the surrounding suburbs which have the potential to cause delays to motorists on the Princes Highway.

Regional Roads Victoria appointed GTA to develop two network-wide microsimulation models covering the extent of Bairnsdale’s road infrastructure to test a range of scenarios. The models had to be a realistic and dynamic representation of the network having regard for the local characteristics. These characteristics include sharp morning and evening peak periods that last for approximately 15 minutes, so it was important to assess the model at these intervals across the hour.

Following the calibration and validation of the models, GTA tested seven options that would solve localised issues but have the potential to expose other areas of the network downstream and upstream.

GTA’s analytics team was able to provide outputs that compared the performance of the network, including changes to travel time, average speed, and reductions in delays, which were used to determine the best outcome. The scenarios were tested for future traffic projections up to 2036, accounting for future growth, increased network and long-term disruptors.

Through this exercise, GTA made a series of recommendations to the client based on the modelling components created as well as our broader transport engineering knowledge to support and feed into the advice. The interdisciplinary approach strengthened our recommendations, ensuring the outcome was robust and contextually aware.


Client // Regional Roads Victoria

GTA Office // Melbourne

creating, guiding, delivering

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