The speed limits along Flagstaff Road, from Cowper Street at Warrawong to Five Islands Road at Port Kembla, on Pioneer Drive at Blackbutt, from College Avenue to Brunderee Road and also on Brunderee Road at Flinders between Wattle and Willinga Roads will all be reduced to 50km/h.

"Transport for NSW completed a speed zone review in consultation with local council and NSW Police," a Transport for NSW spokeswoman said.

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"Transport for NSW carried out the review in accordance with the NSW Speed Zoning Guidelines, which considered a number of factors including roadside development, traffic data and crash history."

New speed limit signs will be installed from November 23. For one week before and after, electronic signs will be in place to alert motorists.

The announcement came at the start of National Road Safety Week

At a launch in Shellharbour, Mayor Marianne Saliba said that, over the past five years, there had been 190 fatal and serious injury crashes where eight people have lost their lives in that council area.

"The campaign's key message for this year, 'Lead the way: Drive so others survive', reflects the critical importance of responsible decision making behind the wheel," Cr Saliba said.

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