Police say the new cameras are already in operation. Warnings will be issued through the end of September, and drivers are being warned that they will start receiving tickets — ranging from $75 to $250 — come Oct. 1.
The prevalence of speed cameras throughout the Washington region is part of a nationwide effort to toughen up enforcement and reduce traffic deaths. According to a 2010 study, speed camera use has helped cut fatalities by more than half in some countries.
The District’s speed camera program already yields more than $10 million a year for the city.