What it means
A typical ITMS combines several subsystems: adaptive traffic signal control, red light violation detection, speed enforcement, ANPR cameras, variable message signs and a central dashboard. Each subsystem may come from a different vendor, so integration through open interfaces such as ONVIF and RTSP matters as much as the cameras.
The highway counterpart of ITMS is ATMS. The two share many components, but ITMS deals with junctions, signals and dense mixed traffic, while ATMS deals with long corridors, high speeds and incident response.
How it applies in India
Many Indian cities have bought ITMS through smart city projects, usually run from an integrated command and control centre (ICCC) staffed with the traffic police. Violations detected by the system become e-challans under Rule 167A of the Central Motor Vehicles Rules, which allows footage with an electronic stamp of location, date and time to be used for challans. Two design questions come up in every project: where the video analytics run (see edge AI), and how evidence reaches the e-challan system.