Road signs in Australia

Road signs in Australia are regulated by state governments, but are standardised throughout the country. In 1999, the National Transport Commission (NTC) published the first set of Rules of the Road for Australia. Australian road signs use the AS 1744:2015 font, which is based on the Highway Gothic typeface. Australia follows the United States when it comes to road sign design practices (for example, using yellow diamonds for warning signs, green direction signs and black and white mandatory signs), but some types of road signs in Australia, such as road signs for speed limits, roadworks, "reduce speed" signs, and chevron arrow-styled direction signs are influenced by their usage in the United Kingdom. Additionally, Australian states use alphanumeric route designations based on similar practices in the United Kingdom and European Union, having transitioned away from a highway shield system formerly used to designate state and national routes. However, unlike US and UK practices, Australian speed limits are shown in units of kilometres per hour, and all distances, width limits, height limits, weight limits and flood depth indicators are shown in metric units.

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