The cameras are linked to a control room and recordings will be checked before a penalty notice is issued to bus lane hogs.
There will also be checks to ensure there are no mitigating circumstances, such as broken-down vehicles.
Last year, the council said the cost of the scheme, including improved lane signage and camera installation, was £235,000, with the running costs estimated at £210,000 a year.
Mr Tunstall added: “We have got to support the use of public transport, and the way the council can do that most effectively is by cutting journey times.
“To do that, we have to give buses priority on certain routes. We need to have bus lanes with proper enforcement.
“Motorists have been used to a free run, so we are expecting to catch a lot of people.”
