Confidential NSW modelling puts cost of 35 rapid bus routes at $5.8 billion

The cost estimates, contained in confidential modelling by Transport for NSW and its consultants, cover the purchase of new buses, infrastructure upgrades and other equipment. The figures are described as a fraction of the price of building metro train lines. The ongoing operational bill would be $760 million each year if all 35 routes were delivered.

Despite the modelling being completed three years ago and an 18-month review of the bus network, the government is yet to unveil plans for any rapid bus link. John Lee, who chaired a NSW government-commissioned bus industry taskforce, said the taskforce urged the state in early 2024 to develop four rapid routes along Parramatta Road, Victoria Road, Bondi Road and to Western Sydney Airport within four years.

"Commuters on those three major city routes would be frustrated that nothing has happened, nearly three years after the recommendations were made," Lee said, adding that rapid bus routes were a fraction of the cost of new metro lines. "When the cost of capital is so high, you can't be building more metro. It doesn't suit the economic times. So you go to what is affordable, and what is affordable is bus, bus and more bus – it's cheaper, it's more effective and has a bigger impact."

The only rapid bus service introduced over the past decade is the $514 million northern beaches B-Line from Wynyard to Mona Vale. The modelling shows five of the most expensive proposed routes would be in the outer west, including a $656 million link from Western Sydney Airport to a destination not specified in the released material.

Analysis

Why This Matters

Sydney commuters face worsening congestion and limited public transport options; rapid buses could offer a cheaper, faster alternative to metro expansion.
The $5.8 billion capital cost is large but significantly less than building new metro lines, which may be unaffordable in a high-interest-rate environment.
Delays mean the bus network improvements identified years ago remain unimplemented, frustrating both passengers and industry stakeholders.

Background

Sydney's bus network has undergone piecemeal improvements over the past decade, with the B-Line to the northern beaches being the only major rapid bus project delivered. In 2024, a government-commissioned bus industry taskforce recommended four priority rapid routes. The Minns government has conducted an 18-month review of the bus network but has not publicly committed to any new routes. The confidential Transport for NSW modelling was prepared three years ago, suggesting internal planning has been underway for some time.

Key Perspectives

John Lee (bus industry taskforce chair): Argues rapid buses are the most cost-effective solution for Sydney's transport needs, especially when capital is expensive. He criticises the lack of action on the taskforce's 2024 recommendations and notes commuter frustration. Minns government (implicitly): Has not unveiled any plans despite having the modelling and review results. The government may be weighing priorities between metro, light rail and bus investments, or facing budgetary constraints. Commuters on key corridors (Parramatta, Victoria, Bondi roads): Experience slow, unreliable bus services and have waited years for improvements. They would benefit from dedicated rapid bus infrastructure.

What to Watch

Whether the Minns government announces any rapid bus routes in the upcoming state budget or transport plan.
The release of the full 18-month bus network review, which may prioritise routes and deliver a timeline.
Cost comparison updates: if metro projects escalate or interest rates change, the relative value of rapid buses could shift political support.

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