$200M Homebush Bay–Australia Ave intersection: design notes for traffic engineers
Reviewed by Tom Sullivan

First reported on Roads & Infrastructure (AU)
30 Second Briefing
A new design has been released for the $200 million upgrade of the Homebush Bay Drive–Australia Avenue signalised intersection in Sydney, a key access route to Sydney Olympic Park that suffers heavy AM/PM peak and event congestion. The scheme targets long queues and extended cycle times on the multi-lane approaches, where current delays spike during major events at Accor Stadium and Qudos Bank Arena. For designers and traffic modellers, the project signals scope for additional through lanes, extended turn bays and revised signal phasing to restore corridor capacity.
Technical Brief
- Upgrade is budgeted at $200 million, indicating scope for major civil and traffic signal works.
- Works focus on the Homebush Bay Drive–Australia Avenue signalised intersection, a primary Sydney Olympic Park access node.
- Event‑driven congestion context will likely require staging plans compatible with large‑crowd traffic management.
- Intersection geometry changes will need close integration with existing multi‑lane approaches and median configurations.
- Similar event‑venue intersections could adopt comparable staged upgrade strategies once performance data become available.
Our Take
Within our 114 Infrastructure stories, New South Wales transport upgrades around Sydney consistently sit at the larger end of the capex range, signalling that urban congestion pinch points like Sydney Olympic Park are now being tackled with major, rather than incremental, works.
For the 274 tag-matched Projects and Contract Award pieces, few single intersections in Australia attract this level of funding, which suggests the Homebush Bay Drive–Australia Avenue node is being treated as a strategic network asset rather than a local traffic improvement.
Large intersection upgrades in Sydney typically trigger complex staging and traffic management requirements, so practitioners can expect this $200M Homebush Bay Drive/Australia Avenue scheme to involve substantial temporary works and night-time construction to maintain event and commuter flows around Sydney Olympic Park.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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