Railway Signaling provides a comprehensive control and safety layer for managing train movements across complex rail networks. It ensures safe routing, movement authority, and real-time operational coordination across all signaling subsystems.
LIGHT RAIL TRANSIT (LRT) SIGNALLING SYSTEM
The Light Rail Transit (LRT) Signalling System is designed to ensure the safe, efficient, and continuous operation of urban rail networks. It supports train movement control, route management and traffic supervision for light rail and tramway applications. With its modular architecture and integration capability, the system can be adapted to different network topologies and operational requirements.
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MAINLINE SIGNALLING SYSTEM
The Mainline Signalling System is a safety-critical solution developed for conventional and mainline railway operations. It ensures safe train separation, route control and centralized traffic supervision while supporting both centralized and distributed system configurations. The solution can be integrated with interlocking, train detection and higher-level railway control systems such as ATS, CTC and ETCS.
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DEPOT & YARD SIGNALLING SYSTEM
The Depot & Yard Signalling System provides safe and flexible control for depot areas, maintenance zones and marshalling yards. It supports train movement authorization, point control and track occupancy supervision required for shunting and depot operations. Its modular structure enables efficient adaptation to different operational layouts and local control needs.
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INDEPENDENT LEVEL CROSSING SIGNALLING SYSTEM
The Independent Level Crossing Signalling System is developed to provide safe crossing operation through train detection, warning control and field equipment supervision. It supports fail-safe control of barriers, audible and visual warning devices, and can operate either as a standalone solution or in integration with wider railway signalling systems. The system also enables remote monitoring and diagnostic functions for improved operational visibility.
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ETCS / ERTMS Level 0
ETCS / ERTMS Level 0 solutions provide safe and efficient traffic management on lines without trackside ETCS infrastructure. By integrating essential field systems such as Axle Counters, Track Circuits, Interlocking, and Point Machines, this solution ensures maximum operational safety, enables seamless route control, and guarantees high compatibility with conventional signaling infrastructure.
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Key Features
Axle Counting SystemAxle Counter System is a safety-critical train detection system that precisely counts the wheel axles entering and leaving specific sections of the railway line to safely determine whether the corresponding line section is occupied or clear. The obtained line occupancy information is transmitted to interlocking and signaling systems, ensuring the safe establishment of train routes and the secure management of railway traffic.
Track CircuitsTrack Circuits are safety-critical train detection systems that electrically sense the presence of a train or railway vehicle on a specific line section via the rails. They contribute to the safe management of train movements by providing line occupancy/clearance information to signaling and interlocking systems.
Point MachinesPoint Machines are wayside equipment that enable railway points/switches to be automatically moved, locked, and their positions safely verified according to the desired route. Controlled by the interlocking system, they play a fundamental role in establishing safe routes for trains.
End-point DetectorsEnd Point Detectors are safety devices that detect whether the switch blade has reached its correct end position and is safely aligned for train passage. The acquired position information is transmitted to the signaling and interlocking systems, contributing to safe route formation.
DerailersDerailers are safety equipment used to prevent uncontrolled or unauthorized railway vehicles from entering the main line, protected routes, or critical areas.
ETCS / ERTMS Level 1
Key Features
Lineside Equipment Unit (LEU)Lineside Equipment Unit (LEU) is an electronic trackside equipment that provides the interface between the signaling system and the Eurobalise in ETCS Level 1 signaling systems. The primary function of the LEU is to process dynamic traffic information received from the signaling system, generate the appropriate ETCS telegram, and transmit it to the train via the relevant Eurobalise.
EurobaliseEurobalise is a passive electronic trackside device that provides data communication between the train and the trackside signaling system in ETCS Level 1 signaling systems. Typically mounted between the rails according to the direction of train travel, it transfers essential ETCS data to the train as it passes over.
Onboard Computer System (OBC)Onboard Computer System (OBC) is the main onboard computer system that executes train protection and speed supervision functions by processing ETCS data received from trackside equipment in ETCS Level 1 signaling systems. By evaluating ETCS telegrams received via Eurobalise/BTM, the OBC ensures that the train operates strictly within authorized movement limits and speed profiles.
ETCS / ERTMS Level 2
ETCS / ERTMS Level 2 solutions enable continuous, radio-based digital train control over the GSM-R network and Radio Block Center (RBC) infrastructure. By eliminating the need for traditional trackside optical signals, this advanced solution delivers real-time movement authorities, maximizes line capacity, and ensures continuous automatic train protection with precise speed supervision.
Key Features
GSM_RGSM-R is a dedicated mobile communication system developed for railway operations that supports voice and data communications. In addition to train-to-control-center communication, it provides the infrastructure for safety-critical data communication between the train and the RBC within the scope of ETCS Level 2.
Fixed EurobaliseFixed Eurobalise is a passive electronic wayside device mounted between the rails that wirelessly transmits predefined static data to the passing train's ETCS equipment. It ensures the reliable transmission of location references, track characteristics, and infrastructure information to the onboard ETCS system.
Radio Block Center (RBC)Radio Block Center (RBC) is one of the core safety-critical components of the ETCS Level 2 system. By evaluating data received from the interlocking system and trains, it calculates safe movement authority for each train and transmits it to the onboard ETCS system via the GSM-R communication network.
Onboard Computer System (OBC)Onboard Computer System (OBC) is the computer system that performs safety-critical control and supervision functions onboard within the scope of ETCS. By evaluating ETCS data received from the trackside, train position, and speed information, it continuously monitors authorized movement and speed limits while presenting essential information to the driver.
Marker BoardMarker Board consists of fixed signal plates used to physically define specific operational or signaling points on the line, especially in ETCS Level 2 applications. By providing a reference point for drivers and operational personnel, it supports the physical identification of ETCS-based train operations on the field.
Auxilliary Systems
Auxiliary Systems enhance overall railway safety, operational continuity, and communication reliability across the network. By actively monitoring trackside environmental conditions, detecting vehicle defects early and providing secure driver-to-center voice communications, these systems protect infrastructure integrity, prevent operational delays, and support seamless train operations.
Key Features
Point Heating SystemPoint Heating System prevents snow and ice accumulation on railway points/switches, ensuring reliable point operation and maintaining safe railway traffic in cold weather conditions.
Auxiliary Detectors (HBD/HWD/DED/WILD) Auxiliary Detectors (HBD/HWD/DED/WILD) detect critical anomalies: Hot Box and Hot Wheel Detectors identify overheating in axles, wheels, and brakes; Dragging Equipment Detectors sense foreign objects or dragging components on the track; and Wheel Impact Load Detectors identify wheel surface defects and wear.
Cab Radio SystemCab Radio System provides secure and reliable voice communication between train drivers and railway control centers over the GSM-R network. It supports functional addressing, emergency calling, and priority communication protocols.
GoA 1
Signaling solutions are provided for urban rail transit lines, delivering automation and Automatic Train Protection (ATP) functions at Grade of Automation 1 (GoA 1).
