GREENVILLE, S.C. - Cities with 20,000 or more residents could install cameras at traffic lights to catch those running red lights under a bill approved by the Senate Transportation Committee.

The committee voted down a similar bill a week ago because opponents said it might be a tempting revenue source for small towns. Some also said the accused wouldn't have enough protections.

The difference with this bill is it applies only to cities with 20,000 or more residents.

Greenville Police Chief Willie Johnson said Wednesday the cameras would make South Carolina roads safer.

Cameras are currently being used in 20 states and the District of Columbia.

Police review the images, and if they see a violation, they write a citation for the vehicle's owner. If someone other than the owner was driving the car, it's up to the owner to make that clear.

Fines would be capped at $100, and couldn't be put on the driver's record or be used to raise insurance rates.