MRGR

Failures and Defects in Train Operations

1. TCMS and TIMS Failures

• Monitoring/control sub-systems:

  • In case of failures in TCMS or TIMS:

    • Trains should continue to the next station, with alarms indicating the failure sent to OCC.

    • If a unit with redundant configurations fails, a Roving Attendant will be called to operate the train under OCC guidance if the second unit fails.

2. Brake Defects

• Systems and Maintenance:

  • Failure to apply or release brakes on any bogie sends alarms to OCC.

  • If failure is isolated to one bogie:

    • Train allowed to continue to the next station with possible speed restrictions.

  • If more than one bogie fails affecting brake efficacy:

    • Train needs to be withdrawn by the end of the trip according to special instructions.

  • No movement allowed unless all brakes are released.

3. Door Failures

• Operational Response:

  • In case of door failures:

    • Trains operate as per special instructions using remote commands where available.

4. Air Conditioning and Lighting Failures

• Immediate Actions:

  • Alarm/message sent to OCC for failures in air conditioning and main lighting systems.

  • Trains may continue service if emergency lighting is functional.

  • Total failure of lighting mandates detraining at the next station and train withdrawal from service.

5. Communication Failures

• CCTV Failures:

  • If on-board CCTV communication fails:

    • Alarm activation allows movement to the next station in UTO mode.

Train Examination Procedures

1. Pre-service Checks

• Wake-up Tests:

  • UTMS conducts wake-up tests to ensure safety devices function properly before service. Key components include:

    • Cab signalling.

    • Safety brake systems.

    • Train radio communication.

    • CCTV systems.

    • Head and tail lights.

    • TCMS/TIMS display panels.

2. Log Maintenance

• Documentation:

  • Tests must be logged with information about the equipment's fitness and conditions checked.

3. Safety checks and Certifications

• Certification Requirements:

  • Competent staff shall perform safety tests when automatic testing fails.

  • Trains not cleared for UTO operation cannot be certified if cameras are unfit,

  • In such cases, non-ATP train modes may still be used.

Emergency Protocols and Operations

1. Emergency Situations

• Evacuations:

  • Fire or Smoke:

    • Traffic Controller to pause trains at affected platforms and assist in evacuation by allowing only boarding passengers.

  • Automated announcements may be triggered during such events.

2. Communication Monitoring

• Hub Notifications:

  • Staff should maintain logs of all communications during incidents for record-keeping and analysis.

3. Operational Adjustments

• Train Stops:

  • When trains stop mid-journey, OCC generates alarms for remote assistance and facilitates station announcements.

Train Operations and Control Procedures

1. Signal Control

• Failure Handling:

  • Routine signal failures will cause the system to default to the most restrictive settings.

2. Emergency Procedures for Train Division

• Train Integrity Checks:

  • In case of visible partitions between trains:

    • Emergency brakes apply, and alarms highlight issues at OCC.

  • Full verification needed before recommencing operations.

3. Specific train operation modes

• Standard Operation Modes:

  • Trains operate primarily under automated systems, either in UTO or DTO modes, with human oversight when conditions demand.

4. Safety Protocols for Operator and Roving Attendant

• Operating staff requirements:

  • Ensure that all safety measures are adhered to, including breathalyser tests for operators and full competency certifications.