The project, announced today, will covert emergency lanes into full-time traffic lanes on the short section of freeway, which currently includes two lanes in each direction.
Federal Minister for Infrastructure, Transport and Regional Development Michael McCormack said the project would address what he described as a capacity bottleneck.
“This project will also help to reduce the number of accidents, stabilise motorway speeds during periods of high demand and reduce driver frustration,” he said.
The freeway is two-lanes in each direction for much of its length, with the lower section from Crafers to the toll gate offering three lanes.
The project announced today will widen the road shoulders, upgrade lighting, draining and the road surface, as well as introduce technological improvements including automated incident detection with CCTV and variable speed limit signs.
Works are out for tender today with construction expected later this year.
The state and federal governments are splitting the costs.
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