The Arizona Department of Public Safety has a website where it has information about the DPS photo radar speed enforcement program. The best part of the site is the page called “Photo Enforcement Camera Locations” where DPS has a Google map that shows the location of its photo radar units. This page also says there are 42 mobile units, but it does not disclose location.
The Department of Public Safety has multiple criteria for placing photo enforcement cameras along the freeway, three of which are listed below:
- Construction zones
- Freeway transition areas where two or more freeways merge
- Areas where a high number of injury/fatal collisions occur where the primary or secondary cause is related to speed