Research Guidance - Control Functions

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Articles about Control Functions should aim to include as much of the following as possible:

In the main index page:

• Signals listed as "SN.444"
• Where a signal has a repeater, outer repeater, banner repeater these listed in the same cell separated by commas: "SN.444, SN.444R, SN.444RR"
• Points listed as a number with no prefix or suffix: "444"
• Ground Frame releases shown in the same cell as the points, with R suffix "444, 444R". The latter part linking straight to the relevant Ground Frame page
• Slots shown as a number with no prefix and the word SLOT: "444 SLOT"

In the individual function pages:

The top of the page should have a link back to the Control Functions list.

For points:

• Description of the location (miles and chains)
• Description of the function of the points (ie, Up Main to Up Goods)
• Interlocking area
• Method of control - motorised, ground frame, sprung, etc
• Date commissioned
• Date controlled onto Swindon Panel (if the interlocking pre-dates the panel)
• Date taken out of use
• (If dates not available, then dates known to be in existence, or not in existence)

For signals:

• Description of the location (miles and chains)
• Description of the profile of the signal:
  • Aspects
  • Junction indicators
  • Route indicators
  • Subsidiary Indications
• Purpose of the signal - what it protects, etc
• Interlocking area
• Controlled or automatic
• Date commissioned
• Date controlled onto Swindon Panel (if the interlocking pre-dates the panel)
• Date taken out of use
• (If dates not available, then dates known to be in existence, or not in existence)
• Whether the signal has been known by another name in the past.

For Ground Frame Release:

• Do not create a page, link straight to the Ground Frame page.