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Solid State Interlocking Control Tables (ISTCT SSI)

Other Signalling Courses

Duration 5 Days
Location Derby or Any location subject to equipment requirements
Delegates Maximum 10

Bespoke & Private Courses

We can also reserve a course for your company exclusively, and we can design courses to meet your company's specifications. Please contact us to discuss your requirements.

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This course will enable a designer, who is already familiar with general interlocking principles and control tables, to be able to complete the new SSI control tables.

Key Features

  • Course fully up to date to reflect current Network Rail standards.
  • The course concentrates on understanding of SSI interlocking functionality, as well as “filling in the boxes”
  • Technical jargon is explained in clear English terms
  • Also provides preparation for module 3 of the IRSE examination

Course Outcomes

On successful completion of this course, the delegate will be able to

  • Demonstrate an understanding of SSI interlocking principles
  • Complete Control Tables for Signal Route & Aspect, Point, Swinging Point, Point Normalisation and Sub Route
  • Create Track Circuit and Point Summation Sheets
  • Design Approach Locking Map Search and Sub Route Diagrams

Assessment and Certification

Achievement of the Course Outcomes will be assessed by a theory assessment of interlocking principles and control table completion.

The delegate’s achievement of the Course Outcomes will be confirmed by a certificate which will be forwarded to the nominated client contact following the course.


A well prepared delegate is expected to be able to interpret signalling plans and existing control tables for UK main line signalling installations.

Practical Information

Duration: 5 days

Location: At our Derby training centre, or on your premises

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