The District is declaring victory in its multi-year initiative to reduce speeding and agressive driving.

When the Photo Radar Speeding Reduction Program started in July 2001, of the nearly 50,000 vehicles clocked, there were about 15,000 violations. In July 2004, of the nearly 1.4 million vehicles monitored, there were 61,000 violations. If you do the math, and the District has, as of last month, only 4.4 percent of vehicles monitored were driving agressively. In July 2001, about 31 percent were driving agressively.

How did D.C. do this? Mobile photo radar units set up in key parts of the city clock your car and will automatically have traffic enforcers send you speeding tickets.

(DCist notes that some of these units make appearances every once and awhile on New Mexico, Arizona and Cleveland avenues and on MacArthur Boulevard in Northwest. Other hot spots, some with stationary units, are set up on Florida and New York avenues in Northeast. Another photo radar camera is set up on the I-395/Third Street tunnel.)

Analyzing more of the data, we see that Maryland drivers are more likely to get tickets than those in Virginia. And we’re shocked that the highest speed clocked last month in a 50 mph zone was 136 mph In a 25 mph zone last month, the highest clocked speed was 90 mph.

Here’s the complete summary.