Centenary Motorway capacity

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Centenary Motorway capacity

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EARLY STAGE PROPOSAL
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POTENTIAL INVESTMENT OPTIONS
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INVESTMENT READY PROPOSAL
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PROJECT DELIVERY
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POST COMPLETION REVIEW

Centenary Motorway capacity

A graphic of the Australian continent with Queensland state shaded and small dot representing Brisbane.
LOCATION
Brisbane, Qld
GEOGRAPHY
Fast-growing cities
SECTOR
Transport
OUTCOME CATEGORY
Efficient urban transport networks
PROPONENT
Queensland Government
PROBLEM TIMEFRAME
Near term (0-5 years)
DATE ADDED
14 February 2019
Problem

The Centenary Motorway corridor connects Brisbane’s rapidly growing Western Corridor (Ipswich, Springfield and the Ripley Valley) to Brisbane’s inner north and the CBD. Between the Ipswich Motorway interchange in the south and Toowong in the north there are high volumes of traffic along the corridor. These result in road congestion and poor trip reliability and road safety.

Projected population growth in the Western Corridor, combined with a growing number of people commuting from these areas to Brisbane’s CBD for work, will exacerbate the problem in the future. Ipswich is expected to have the largest population growth of any Local Government Area within South East Queensland from 2016 to 2041 – with additional residents and 61,000 jobs.

Average weekday traffic on the Centenary Bridge was approximately 100,000 vehicles per day in 2016 and is estimated to rise to more than 150,000 vehicles per day in 2036. There were 192 crashes recorded on the Centenary Motorway between 2010 and 2016, and increasing congestion will contribute to further safety issues.

Early-stage Proposal

Planning studies have identified possible staged upgrades along the Centenary Motorway from Sumners Road, Darra, to Frederick Street, Toowong.

The $244 million Centenary Bridge Upgrade, jointly-funded by the Australian and Queensland Governments, with contributions of $112 million and $132 million respectively, is the first stage to be delivered.

Additional options to improve capacity along the motorway include:

  • intersection and on-ramp and off-ramp improvements
  • implementing smart freeway technology
  • road widening.
Next Steps

Proponent to identify and analyse potential investment options (Stage 2 of Infrastructure Australia’s Assessment Framework).

 

Refer to Infrastructure Glossary for terms and definitions.