When students go back to school this year, New York City will have a lesson for drivers who go too fast near schools.
Mayor Bloomberg announced Monday that 20 school-zone "speed cameras" will start enforcement work on Sept. 9, when city public schools reopen.
The state Legislature agreed in June to let the city set up the cameras to catch and deter speeders.
The cameras record the speed of passing vehicles. Tickets are issued automatically.
For the first few weeks, motorists found on camera to be going 10 or more miles above the speed limit will get only warnings. Eventually, such drivers will face $50 fines.
The cameras will be at unspecified spots within a quarter-mile of some schools. The city is allowed to change the locations periodically.