Key highlights

  • Transurban reported Group average daily traffic up 3.1% in the September 2026 quarter in its 21 October 2026 release.
  • Sydney traffic rose 3.0%, Melbourne 4.2%, Brisbane 1.1% and North America 4.7%.
  • Excluding the West Gate Tunnel, Melbourne traffic was broadly flat at −0.2%, and Group traffic excluding it rose 1.6%.

Transurban Group (ASX:TCL) shares closed at $14.05, up 3.01%, on 21 October 2026. The S&P/ASX 200 Industrials [XNJ] index closed at 8,113.90, up 0.99% (79.50 points), while the S&P/ASX 200 [XJO] finished at 8,831.30, up 0.16% (14.40 points), as at 4:25 pm GMT+11. Transurban is an Australian toll road operator with networks in Sydney, Melbourne, Brisbane and North America.

What Transurban does

Transurban Group owns, operates and develops toll roads, with assets including WestConnex, the M7 and Cross City Tunnel in Sydney, CityLink and the West Gate Tunnel in Melbourne, the Gateway and Logan motorways in Brisbane, and express lanes in the Washington DC area of North America. Revenue is driven by traffic volumes and toll prices, and the company reports traffic as average daily traffic (ADT) each quarter.

Group traffic for the September quarter

In an ASX release dated 21 October 2026, Transurban reported that Group ADT increased 3.1% against the prior corresponding period. The comparison period for FY27 excludes the A25 motorway in Sydney, whose divestment reached financial close on 15 June 2026. Group ADT excluding the West Gate Tunnel rose 1.6%. The release compares quarterly ADT growth of 3.0% in 3Q26, 1.1% in 4Q26 and 3.1% in 1Q27.

Sydney and Melbourne

Sydney ADT increased 3.0% to 1,077,000 trips, driven by 10.7% growth on the M7 after the M7-M12 Integration Project opened and 2.2% growth on WestConnex. Large vehicle traffic rose 4.2%, and the release cites NSW port container volumes up 6.8% year on year. The prior period had been affected by significant rainfall.

Melbourne ADT rose 4.2% to 875,000 transactions, reflecting the West Gate Tunnel, which opened on 14 December 2025 and had ADT of 37,000 in the quarter. Excluding the tunnel, CityLink ADT was broadly flat at −0.2%, with Southern Link up 1.1% and Western Link down 1.7% as traffic redistributed to the tunnel, and Melbourne Airport passenger volumes fell 0.5%. Transurban also addressed a historical vehicle classification issue in June 2026, which it does not expect to materially affect free cash flow or the FY27 distribution.

Brisbane and North America

Brisbane ADT grew 1.1% to 498,000 trips, with large vehicle traffic up 3.6%, including growth of 3.5% on Gateway and 4.2% on Logan, while car traffic rose 0.3%. North America ADT increased 4.7%.

Sector context

Industrial companies span transport, infrastructure, engineering, services and manufacturing, and they are tracked through the S&P/ASX 200 Industrials index, which closed at 8,113.90, up 0.99%, on 21 October 2026 alongside a 0.16% rise in the S&P/ASX 200 to 8,831.30. Toll road traffic is influenced by economic activity, fuel prices, population and weather, and the release attributes part of Sydney’s growth to a prior-period rainfall effect. The release was issued on the same day as the session above.

Risks and uncertainties

Traffic growth in Melbourne depends on the West Gate Tunnel, and excluding it CityLink traffic was slightly lower. Quarterly traffic is affected by weather, roadworks, fuel prices and economic conditions, and the comparison base changed after the A25 divestment. Brisbane growth of 1.1% was lower than the 5.2% reported for 3Q26. Policy settings in the 2026 Victorian state election campaign, vehicle classification matters and regulatory arrangements can also affect outcomes.

Catalysts to watch

Items to watch include the next quarterly traffic update, ramp-up of the West Gate Tunnel, performance of the M7 following the integration project, North American traffic trends and the FY27 distribution.

Summing up

Transurban’s 21 October 2026 update reported higher traffic across all four markets, with the West Gate Tunnel accounting for much of Melbourne’s growth. The next quarterly update will show how those trends develop.