Speed scofflaws, beware: Alpharetta is rolling out camera-based speed enforcement around public school zones. The 30-day public education period has begun.

Motorists who violate the posted school speed limit for now will be mailed warning notices, according to a city announcement. The program will be fully operational and police will begin writing tickets on Feb. 17.

Signage is being posted to alert drivers, with the school zone around Haynes Bridge Middle School the first to have active cameras. Additional zones will come online in the coming weeks.

Alpharetta will target drivers going more the 10 mph over the limit, the city said. Cameras will operate school days only, from one hour before school begins to one hour after it ends, and will enforce lowered speeds only during the morning and after-school zone periods, when the school speed zone lights are flashing.

A sworn police officer will review and approve each citation before it is issued, the city said. Information: 678-297-6330 or jsimpson@alpharetta.ga.us or https://bit.ly/2RVqcgq

"We have high hopes that automated enforcement will encourage drivers to slow down and obey the law," said Chief John Robison, Alpharetta's director of public safety.