Open Graded Asphalt

Objective

To provide a pavement surface that will reduce road-tyre noise while withstanding traffic volumes in excess of 119,000 AADT
(two-way) experienced on the Eastern Freeway.

Existing Conditions

The first stage of the Eastern Freeway was constructed in the early 1970s. In late 1997, it was extended by an additional 3.3 km from Middleborough Road to
Springvale Road in Donvale and was constructed under green field conditions.

As part of the EastLink Project commenced in 2005, the Eastern Freeway will be extended to Ringwood to become the northern leg of the Mitcham-Frankston
Freeway.

The extension to Donvale was one of Victoria’s major infrastructure development initiatives at the time and is composed of a
deep strength asphalt pavement primarily at natural level or in cut. The placement of open graded asphalt was a requirement of
new pavement construction on all freeway facilities of this type.

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