Road narrowingAustralia
Traffic rules
Australia
1. Road narrowing
A road narrowing is a section where the available width of the road or carriageway becomes smaller. The narrowing may occur on both sides, on one side only, or because one or more traffic lanes end.
Drivers should reduce speed, observe approaching and adjacent traffic, maintain sufficient lateral clearance and merge when necessary. Warning signs do not always determine priority, so drivers must follow any priority signs, lane markings and local traffic rules.
What does a road-narrowing warning mean in Australia?
In New South Wales, narrowing and narrow-bridge warnings describe reduced space. Read the actual warning, lane markings and any separate Give Way or signal control; other Australian jurisdictions have their own rules.
🔗 nsw.gov.au • Australia, NSW official road-user guidance — road-narrowing
Warning for a road narrowing.
English • W4-3 • Road narrows. The road becomes narrower ahead. Reduce speed and allow room for other traffic.
Sources
🔗 Commons.wikimedia.org (Government of Queensland • CC BY 3.0 au)
🔗 Transport.nsw.gov.au • Transport for NSW • W4-3
SVG source: Government of Queensland • CC BY 3.0 au • Original revision 2012-10-12. Wikimedia original unmodified.
Artwork verified against Qld.gov.au • official published diagram W4-3.
Does a narrowing warning give you priority in Australia?
No. A warning describes the reduced width, rather than allocating priority or setting a numerical speed limit. Follow any separate priority signs, signals and meeting rules, and slow enough to pass safely or wait before entering.
🔗 nsw.gov.au • Australia, NSW official road-user guidance — road-narrowing
What should you do if traffic lanes merge at a narrowing in Australia?
In New South Wales, changing across a lane line requires yielding to vehicles in the lane you enter. When two lines of traffic merge without a lane line, the driver behind gives way to the vehicle ahead. Read the actual markings before deciding which rule applies.
🔗 nsw.gov.au • Australia, NSW official road-user guidance — road-narrowing
