Transport for NSW installed red-light speed cameras at two Great Western Highway locations - the intersection of Durham and Bentinck streets and intersection of Stewart and Keppel streets - in late April but gave drivers a grace period before they started issuing fines in late June.

And it did not take long for the cameras to start paying their way, with the state government reaping more than $160,000 in fines revenue in less than two months, according to figures from the NSW Office of State Revenue.

The camera at the intersection of Durham and Bentinck streets, near Carrington Park, has been the most lucrative so far, catching 63 drivers running the red light, including 58 in July alone.

Offending drivers have been fined a total of $38,477.

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The same camera clocked 383 speeding drivers in July - a rate of about 12 a day - to go with the 14 fines issued in just a few days in June, worth a total of $75,996.

Just a couple of kilometres down the road, the camera at the intersection of Stewart and Keppel streets has also been raking in the case, catching 38 drivers running the red light ($19,383 in fines) and 121 speeding drivers ($33,928).

Member for Bathurst and Regional Roads Minister Paul Toole was unapologetic, saying red-light speed cameras helped ensure pedestrian and motorist safety at busy intersections.

"The locations in Bathurst were chosen because they have a history of crashes and carry high volumes of traffic each and every day," Mr Toole said.

"It's a shame that some drivers are not following the road rules and running red lights and speeding.

"Not only are you putting your life at risk, but also other motorists on our roads as well.

"I urge everyone to do the right thing when they get behind the wheel and obey the rules of the road.

"We want everyone to stay safe and arrive safely at their destination."

Mr Toole said that all revenue from speed cameras was required by law to go into the Community Road Safety Fund, which funds life-saving road safety infrastructure and programs.