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These are the 10 slowest roads in Australia


Adelaide, Melbourne and Sydney own them all.

A new report analysing road and traffic congestion in Australia has revealed the country's 10 slowest roads, with the majority located in Sydney.

Austroads' Congestion and Reliability Review found South Australia's King William Street in Adelaide to be the slowest road in the nation, with motorists averaging just 13.5 km/h.

Similarly, New South Wales' Harris Street in Sydney has drivers languishing at a sluggish 14.5 km/h.

Plenty of traffic and peak hour travel lands Victoria's Punt Road, Melbourne in the number three spot at a tortoise-like 16.1 km/h.

South Australia's North Terrace in Adelaide rounds out the top four at 16.2 km/h.

The remaining six most-congested roads can all be found in Sydney (see below).

Australia's slowest roads

StreetCityAverage Speed (km/h)
King William StreetAdelaide13.5
Harris StreetSydney14.5
Punt RoadMelbourne16.1
North TerraceAdelaide16.2
Cleveland StreetSydney17.1
South Dowling StreetSydney17.2
Stacey StreetSydney18.3
Military RoadSydney18.7
Lane Cove RoadSydney18.9
Church StreetSydney19.5

The report was based on a two-month analysis of Google Maps data in late 2015.

The average driving speed on Sydney's road network is slower than San Francisco, Boston and Philadelphia and only marginally faster than Seattle.

Despite these results, Sydney's Hume Highway ranked as the third fastest road in Australasia, with drivers averaging almost 98 km/h.

Melbourne's Burke Road consistently has the most traffic delays, followed by Centenary Drive at Homebush in western Sydney.

Sydney also had the greatest proportion of journeys to work via public transport, cycling or walking (26%), compared with other Australasian capitals.

New Zealand's Wellington ranked second (23%) and Melbourne wasn't too far behind (19%).

Perhaps more Aussies are realising the detriments of driving, given car sales decreased for the fourth consecutive month last November.

Planning on selling your old car or buying a new one? We've listed some tips to streamline the process.

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Picture: Shutterstock

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