Perth CBD to north corridor capacity

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Perth CBD to north corridor 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

Perth CBD to north corridor capacity

A graphic of the Australian continent with WA state shaded and small dot representing Perth.
LOCATION
Perth, WA
GEOGRAPHY
Fast-growing cities
SECTOR
Transport
OUTCOME CATEGORY
Efficient urban transport networks
PROPONENT
WA Government
PROBLEM TIMEFRAME
Near term (0-5 years)
DATE ADDED
17 February 2016
Problem

Traffic congestion in the Perth metropolitan region is impacting on the efficiency of the transport network.

Analysis in the Urban Transport Crowding and Congestion report, which supported the 2019 Australian Infrastructure Audit, included lower population forecasts than projected in the 2015 Audit, which corresponded to decreased traffic volumes, delays and lower projected public transport passenger volumes. However, the worst-performing corridors are largely consistent between the audits. Results for the AM and PM peak showed a similar outcome. Although traffic volumes on Kwinana Freeway, Graham Farmer Freeway, Mitchell Freeway, Marmion Avenue/West Coast Hwy Corridor and Roe Highway have decreased between the 2015 and 2019 Audits, they still remain high.

The Urban Transport Crowding and Congestion report also identified that despite the mode shift from cars to public transport, congestion on Perth’s roads is forecast to grow substantially. Modelling indicates the annualised cost of road congestion will be approximately $3.6 billion in 2031. Congestion will continue to be particularly acute on key north-south arterial roads, as well as on the Mitchell and Kwinana Freeways and the Tonkin Highway. The daily cost of road congestion on Perth’s roads is expected to more than double as a

 

as a result, from about $4.4 million in 2016 to $10.5 million in 2031.

In the absence of additional capacity, the northern corridor will be one of the most congested corridors in Perth.

Potential investment options

The Western Australian Government has completed upgrades along Marmion Avenue and Wanneroo Road and construction has started on the Mitchell Freeway extension to Romeo Road, with completion expected in mid- 2023.

The Yanchep Rail Extension, which will extend the Joondalup Line from Butler to Yanchep, was evaluated by Infrastructure Australia in 2018 and has been jointly funded by the Australian and Western Australian Governments and.

While these investments will assist to address the problem, capacity constraints downstream (i.e. closer to Perth) will increasingly impose limitations on the inner parts of the network.

The Western Australian Government is currently progressing several initiatives to address forecast capacity constraints into the future.

Next Steps

Individual sections are at various stages of development and we encourage the proponent to develop potential investment options (Stage 2 of Infrastructure Australia’s Assessment Framework), and complete business case development (Stage 3 of Infrastructure Australia’s Assessment Framework).

 

Refer to Infrastructure Glossary for terms and definitions.