Communications-Based Signalling Strategies

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Presented by: Brenton Atchison at the 2009 Railways and Harbours Conference in Cape Town.

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  • Communications-Based Signalling Strategies

    1. 1. Communications-Based Signalling Brenton Atchison Westinghouse Rail Systems Australia Part of the Invensys Rail Group
    2. 2. Communications-Based Signalling <ul><li>What is the future of signalling? </li></ul><ul><li>The future is; </li></ul><ul><ul><li>Automatic Train Protection or Cab Signalling </li></ul></ul><ul><ul><li>Train Control Optimisation </li></ul></ul><ul><ul><li>Driver Advice </li></ul></ul><ul><ul><li>Automatic Train Operation </li></ul></ul><ul><li>The future is Train Carried (and communications based) </li></ul>
    3. 3. Communications-Based Signalling <ul><li>Current signalling system </li></ul>Control/Dispatch Centre Comms Network Trackside Equipment and Signals
    4. 4. Communications-Based Signalling <ul><li>Train protection overlay </li></ul>Control/Dispatch Centre Comms Network Trackside Equipment and Signals Onboard ATP
    5. 5. Communications-Based Signalling <ul><li>In-Cab Signalling </li></ul>Control/Dispatch Centre Comms Network Minimal Trackside Equipment Onboard Train Control
    6. 6. Communications-Based Signalling <ul><li>The future is here… </li></ul><ul><ul><li>Modern metros have automatic train protection and even automatic train operation </li></ul></ul><ul><ul><li>ERTMS required in Europe </li></ul></ul><ul><ul><li>Positive Train Control (PTC) required by 2015 in North America </li></ul></ul><ul><ul><li>Other ATP and CBA systems world-wide </li></ul></ul>
    7. 7. Communications-Based Signalling <ul><li>Why change? </li></ul><ul><ul><li>Improved safety </li></ul></ul><ul><ul><ul><li>Especially if risk profile changes </li></ul></ul></ul><ul><ul><li>Lower whole of life costs </li></ul></ul><ul><ul><ul><li>Reduced trackside equipment </li></ul></ul></ul><ul><ul><li>Higher capacity and higher speeds </li></ul></ul><ul><ul><li>Increased efficiency and performance </li></ul></ul>
    8. 8. Communications-Based Signalling <ul><li>What is the problem? </li></ul><ul><ul><li>Significant capital cost investment </li></ul></ul><ul><ul><li>Operational issues often more significant </li></ul></ul><ul><li>Moving On Board is a quantum leap for the railway </li></ul><ul><ul><li>Incompatibilities with existing technologies </li></ul></ul><ul><ul><li>Complex to roll out incrementally </li></ul></ul><ul><ul><li>Whole of organisation impact </li></ul></ul><ul><li>Its a 30+ year commitment </li></ul><ul><ul><li>Maintenance and service commitments </li></ul></ul><ul><ul><li>Technology obsolescence management </li></ul></ul>
    9. 9. Communications-Based Signalling <ul><li>Choosing a Solution </li></ul>Capital Cost Safety Capacity Maintenance Signalling Principles Driver Impact Existing Infrastructure Technology Risk Interoperability Availability Staffing Network and Traffic Profile Level of Control
    10. 10. Communications-Based Signalling <ul><li>Industry “Standards” </li></ul><ul><ul><li>European Rail Traffic Management System (ERTMS) </li></ul></ul><ul><ul><ul><li>Multi-vendor supported (through UNISIG) </li></ul></ul></ul><ul><ul><ul><li>Global and working </li></ul></ul></ul><ul><ul><ul><li>Feature rich, with many possible architectures </li></ul></ul></ul><ul><ul><ul><li>ETCS will evolve and will still be here in 30+ years </li></ul></ul></ul><ul><ul><li>Positive Train Control </li></ul></ul><ul><ul><ul><li>North American Operators </li></ul></ul></ul><ul><ul><ul><li>Currently laboratory trials </li></ul></ul></ul><ul><ul><ul><li>Required by 2015 </li></ul></ul></ul><ul><ul><li>Standards support different solutions </li></ul></ul><ul><ul><ul><li>ATP, overlay, CBS </li></ul></ul></ul>
    11. 11. Communications-Based Signalling <ul><li>Proprietary Technology vs Industry Standards </li></ul><ul><ul><li>Industry Standards </li></ul></ul><ul><ul><ul><li>Interoperability </li></ul></ul></ul><ul><ul><ul><li>Open competition and multiple vendors </li></ul></ul></ul><ul><ul><ul><li>Shared development and approvals cost </li></ul></ul></ul><ul><ul><ul><li>Reduced technology risk and lead-times </li></ul></ul></ul><ul><ul><ul><li>Application knowledge and experience </li></ul></ul></ul><ul><ul><li>Proprietary Technologies </li></ul></ul><ul><ul><ul><li>Optimised for specific market </li></ul></ul></ul><ul><ul><ul><li>Adapt to operations </li></ul></ul></ul><ul><ul><ul><li>Leverage existing investments </li></ul></ul></ul><ul><ul><ul><li>No restrictions </li></ul></ul></ul>
    12. 12. Communications-Based Signalling <ul><li>The strategy of the Invensys Rail Group </li></ul><ul><ul><li>Common platforms and components </li></ul></ul><ul><ul><li>Product families for different markets </li></ul></ul><ul><ul><li>Optimised solutions for each customer </li></ul></ul><ul><li>For example; </li></ul><ul><ul><li>FUTUR ETCS </li></ul></ul><ul><ul><li>Digital ASFA </li></ul></ul><ul><ul><li>TBS100 Distance to Go Metro </li></ul></ul><ul><ul><li>SIRIUS Driverless Metro </li></ul></ul><ul><ul><li>SENTINEL Positive Train Control </li></ul></ul><ul><ul><li>WESTECT ATP </li></ul></ul>
    13. 13. Communications-Based Signalling <ul><li>Summary </li></ul><ul><ul><li>Communications-based signalling is the future </li></ul></ul><ul><ul><li>But implementation is non-trivial </li></ul></ul><ul><ul><ul><li>Operational impact can be far-reaching </li></ul></ul></ul><ul><ul><li>Choosing the right solution is complex </li></ul></ul><ul><ul><ul><li>Consider the specific needs of your railway </li></ul></ul></ul><ul><ul><ul><li>Must consider whole-of-life costs and benefits </li></ul></ul></ul><ul><ul><ul><li>Reuse standard technologies to the extent possible </li></ul></ul></ul>
    14. 14. The Future is Train Carried

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