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Signaling & Control System

Signaling & Control

System

European Train Control System

ETCS-1

The European Train Control System (ETCS) is a subsystem of the European Railway Traffic Management System (ERTMS), developed to enhance interoperability between trains through a standardized signaling system. ETCS is a safety-critical system in which digital trackside information required for train operation is transmitted to onboard equipment, enabling automatic monitoring and control of train speed.

Features

  • Fixed Block system
  • Transmission of Movement Authority and Speed Profile via Balise
  • Train Position Detection via Various Track Circuits
  • Performance Enhancement Based on Existing Signaling System

Configuration

Impact

  • Providing Competitive Railway Transport Services through Operational Efficiency and Cost Reduction
  • Enhanced track capacity
  • Ensured safety and reliability
  • Establishment of a global railway network through interoperable systems
  • Single-train driver train operation
  • Reduction of trackside infrastructure

Advantages

  • Multiple suppliers ensure competitive pricing and advanced technology options.
  • Open standardized interfaces and high-performance capabilities.
  • Scalable ETCS levels with upgrade flexibility.
  • Enables high-speed train operations and enhanced data availability.
  • Provides a high level of safety across the system.
  • Reduced trackside equipment and maintenance requirements.
  • Supports cutting-edge train operations while promoting cost-efficiency.

Signaling Equipment


  • Enables interface between trackside and onboard systems compliant with ERTMS/ETCS Class 1 SRS 2.3.0 Level 1 standards.
  • Operates with input via Interface 'C' and output via Interface 'A'.
  • In the event of an LEU (Lineside Electronic Unit) failure, the variable Balise transmits a default telegram.
  • Telegram transmission standard is followed.
  • Signal aspect information and route input data are recognized through relay contacts (RAB).
  • Coupling of the LEU is configured through relay contacts of the PIO (Programmable Input/Output).
  • If incorrect signal aspect information is input, the BD (Balise Driver) transmits a default telegram.

European Train Control System

ETCS-2

ETCS Level 2 is a train control system that operates via wireless communication in conjunction with existing signaling systems. The Radio Block Center (RBC) individually transmits Movement Authority (MA) and track information to each train via GSM-R, enabling safe operation within defined track sections.

Features

  • Wayside Equipment (RBC - Radio Block Center)
  • Transmission of Movement Authority
  • Interface with Signaling Equipment
  • Signal (Optional)
  • Onboard Equipment (EVC - European Vital Computer)
  • Interface with CTC (Centralized Traffic Control)

Configuration

WAYSIDE RBC COMPOSITION

ETCS L.2 RBC INTERFACE WITH EXTERIOR SIGNAL DEVICE

Advantages

  • Reduced system through minimization of trackside equipment
  • Real-time transmission of continuous Movement Authority (MA) enables safe high-speed train operations
  • Cost savings in maintenance through simplified interfaces with signaling equipment
  • Onboard equipment equipped with ETCS Level 1 functionality, enabling compatibility with lower ETCS levels and legacy interfaces
  • Train control via CTC system, including support for temporary speed restrictions and emergency stop commands