The Ballarat Traffic Management Unit has received $11,000 in Transport Accident Commission funding to target some of the worst blackspots in the city.

On Saturday morning police had one officer in plain clothes on Sturt St, who would radio colleagues when he saw an offence.

Waiting police would then flag the offending driver further down the street.

Operation Bystander still has another five shifts to complete, and Ballarat TMU Leading Senior Constable Shaun Martin said two speeding drivers and six people not wearing seat belts were caught in the first 40 minutes of the operation.

"All our crash stats indicate that a vast majority of our serious injury or injury-related crashes are happening in Sturt St and Ripon St. Armstrong and Sturt is becoming a high accident intersection as well," he said.

"What we are finding is more people are texting on mobile phones while driving. How much concentration does that take?

"We have got another five shifts and we will be anywhere anyday."

Meanwhile a booze bus operation at Prest St, Ballarat, picked up six drivers for being over the .05 blood alcohol limit Friday night.

Leading Sen Const Martin said about 300 drivers were tested between 7.30pm and 10.30pm.

We aren't seeing big readings," he said.

"Most of them didn't realise how much they could drink. The highest reading was .077 and it means they have had a glass too much depending on what they are drinking."

"It's a fine line between being over the limit and under it."

Police are investigating the circumstances surrounding an accident on Main Rd on Saturday night outside Doherty Ballarat Lodge.

Police said the accident happened about 7.10pm when a Holden Commodore and Mazda station wagon collided.

Both male drivers escaped injury.

Main Rd was closed for about 30 minutes as the scene was cleared.