The District has raked in at least $36.4 million from nearly a half-million drivers in fiscal 2009 because of traffic cameras, almost double the amount two years ago, according to a study released Monday.

D.C. police collected $29.9 million from speed camera fines and $6.5 million from red-light cameras tickets in the first 11 months of the last budget year, according to a study by AAA Mid-Atlantic.