NaviGAtor's Video Detection System (VDS) is the primary source of
real-time information about current travel conditions.
Approximately 1,645 VDS stations are installed approximately every 1/3
mile along most major interstates around Atlanta. These VDS cameras
provide continuous speed and volume data to the TMC and allow the
system to generate travel times for the Changeable Message Signs
NaviGAtor also uses about 500 full-color Closed-Circuit Television
cameras, positioned about every 1 mile on most major interstates around
Atlanta. The CCTVs have tilt, pan and zoom capabilities and serve as
traffic cameras sending real-time footage to the operators at theTMC
monitoring the roadways. The information collected from these cameras
allows them to confirm incident details, dispatch HERO units and
request appropriate emergency resources.