What is Intersection Controller Device (ICD)?

Intersection Controller Device (ICD)

One of the most important components of traffic management is signalized intersections. These systems, which we constantly encounter in our daily lives without realizing it, are equipped with advanced technologies to ensure a regular and safe traffic flow. The Intersection Control Device (IDC), also known as the Traffic Signal Controller (TSC), serves as the management panel that controls the traffic signals at signalized intersections.

The intersection control device is a control mechanism that manages traffic lights at signalized intersections according to predetermined times, traffic density, or data received from smart sensors. It determines how long and in which color the traffic signal lights should operate. While doing so, it takes necessary precautions by considering traffic and road safety.

Technical Details to Consider in the Use of Intersection Control Devices:

• Protection Class: Since intersection control devices operate continuously in outdoor conditions, they should have a protection class of at least IP 54.
• Compliance with Standards: The devices used must comply with TS EN 50556 or EN 50556 standards and possess a valid TSE or EN certificate.
• Number of Signal Groups: Intersection control devices generally have signal groups in multiples of four. Considering potential future additions, it is recommended to select a device with a higher number of groups than the current need. For example, if eight signal groups are sufficient for an intersection, a device with twelve signal groups is recommended.
• Safety Measures: For the safety of traffic engineers and technicians, high-voltage and low-voltage sections should be kept separate, and double-door panels should be used.
• Additional Modules: At intersections with pedestrian crossings, tram crossings, or loop detectors, additional modules such as an I/O card or Loop Detector card should be included to correctly detect requests.
• Central System and Communication: If intersection control devices are to be integrated into a central traffic control system, the communication infrastructure must be suitable. Communication can be provided via GPRS modem or fiber optic cable.
• Compatibility with Intelligent Traffic Systems: Today, within the concept of Smart Cities, applications such as Intelligent Traffic Systems, Intelligent Transportation Systems, Smart Intersections, and Dynamic Intersections are becoming widespread. Intersection control devices must be fully compatible with sensors, cameras, and other external measurement systems.