Tools

Integrated Mobility SolutionsIntegrated Mobility Solutions

Train Control Systems

Automatic train control systems continuously monitor all movements of the trains on lines and at stations and provide safe signaling. A large number of automatic functions support the operating personnel and drivers, making high speeds possible and enabling the line and network resources to be utilized to maximum capacity. Signaling information as well as operational information can be transmitted to make railway services efficient and cost-effective.

Trainguard – European Train Control System (ETCS)

The Siemens solution for the standardized European Train Control System (ETCS) is known as Trainguard. The ETCS is gradually replacing the various different national train-protection and train-control systems. Standardized interfaces between vehicle and line allow interoperability and cross-border traffic.

Trainguard is available in two versions: Trainguard 100 for ETCS Level 1 and Trainguard 200 for ETCS Level 2. As a complete provider for European Rail Traffic Management System (ERTMS) Siemens continues to supply the digital GSM-R train radio system.


Trainguard PTC

Positive Train Control (PTC) is an emerging train control system with special focus on North America. With Trainguard PTC, Siemens offers comprehensive system solutions for our freight and commuter railroad customers.

The Trainguard PTC On Board Unit (OBU) is the core of our PTC system. With its precise location determination and its superior braking curve capabilities, our vital OBU provides the ideal combination of safety and performance for your railroad.


Trainguard MT CBTC – Automatic Train Control System

The modular train control system Trainguard MT CBTC provides the signaling basis for attractive, reliable and efficient mass transit systems. The radio-based system allows a choice between fixed or moving block operation and achieves headways of 90 seconds. Trainguard MT CBTC includes functions for monitoring, implementation and control of the entire operating sequence. It can be implemented in different degrees of automation, such as semiautomatic operation, operation under driver control and driverless operation.

Trainguard MT CBTC is based on reliable Simis computers and tried-and-tested automatic train control solutions such Canarsie CBTC, which demonstrate Siemens’ expertise in the field of radio-based train control and brown field environment. Thanks to standardized interfaces, Trainguard MT CBTC is compatible with various different operation control systems, interlocking designs and track-vacancy detection systems.


Intermitent Cab Signal Systems

Intermittent cab signal systems receive signal aspect information on a periodic basis as trains pass over wayside transponders. Siemens has supplied equipment for the complete spectrum of intermittent applications - from simple ITS (Intermittent Train Stop)  to the very advanced ACSES (Advanced Civil Speed Enforcement System), the 256-bit balise used on the Northeast Corridor.

Continuous Cab Signal Systems

Continuous cab signal systems receive steady streams of signal aspect information from modulated carriers in the rails. This data is continually scrutinized by a safety-critical on-board computer that determines over-speed conditions and issues appropriate alerts and/or penalties. Our company custom designs and builds these systems according to the specific territories and vehicles on which they will be used. Examples of basic configurations include 4-Aspect, 9-Aspect, and Composite (multiple aspects, multiple territories) systems. Typical system options include braking assurance, vehicle network interfacing, braking profile generation, and GPS.

Train Control Systems Accessories

Operator Displays

An Aspect Display Unit (ADU) is the primary visual interface between the vehicle operator and the cab signal system. ADUs indicate the aspect being received at any given time. Speed displays or other vehicle status indicators are often integrated into an ADU. All of our company displays use long-life solid state indicators so as to minimize equipment failures and vehicle downtime.

ACSES ADU (Aspect Display Unit)

Approx. 9"H x 5"W

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    Cab Signal Accessories

    • Axle Generators

    • Track Receivers

    • Decelerometers

    • Power Supplies

    • Cab Signal Diagnostic and Test Software

    Axle Generators

    Axle generators use internal speed sensors to count pulses related to specific gear rotations. This speed data is then relayed to the onboard computer for determination of protential overspeed conditions.

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      Misc. Wayside Equipment/Services

      • Relay Calibration Unit

      • Code Rate Generators / Decoders

      • Vital Loss of Shunt Timer

      • Power Resistor Assembly

      • Services

      Relay Calibration Unit

      Siemens designs and builds Relay Calibration Units to allow customers to perform simple Go/No-Go testing of a variety of industry standard relays. The computer-controlled test bench provides for complete test control and automatic test documentation.

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        Misc. Vehicle Equipment/Services

        • GPS Monitoring System

        • Key Lock Switches

        • Floor Heater Fault Detectors

        • Car Wiring Panel

        • Services

        GPS Monitoring System

        Siemens GPS Monitoring System works by continually comparing satellite-derived coordinates to coordinates in the cab signal system's onboard database. Warnings and brake applications can then be initiated if, for instance, a cab signal territory switch has been placed in the wrong position.

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