Police announced the location of 33 new fixed speed cameras yesterday.
Three will be in Dunedin, one near Invercargill and one in Oamaru.
Road policing national manager Superintendent Steve Greally said work on the Southern sites was expected to begin in the next few months.
The installation was expected to be completed by the end of the year, Supt Greally said.
It is anticipated they will begin operating from early next year following testing.
The new cameras used a dual radar system to monitor up to six lanes of traffic flowing in both directions.
Unlike previous speed cameras, which used wet film, the new cameras took digital images which were sent wirelessly through a secure network.
They could detect heavy and towing vehicles, and created no visible flash.
At present, 13 next-generation cameras were live in the North Island and two others were being tested.
The Southern district has been without an active fixed speed camera for more than a year.
The $10million speed camera project sought to put the digital cameras in the areas with the highest risk of speed-related crashes across the country.
''Each site was carefully selected following detailed analysis by independent experts and consultation with territorial authorities and local communities,'' Supt Greally said.
''As with the placement of other fixed cameras, details of each camera's location are being made publicly available, as we want people to know where they are and encourage them to drive at safe speeds, so that we don't have to issue notices.''
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