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Table of Contents

Central Scotland
Reference Section
Signal Number Plan
Signal Box Prefix Codes
Timetabling & TIPLOC Details
Splash Screens
Version History

Central Scotland

Reference Section

Signal Number Plan

These are Adobe Acrobat PDF files. If you don't have Adobe Acrobat Reader installed on your computer you can get a free download of the latest version from the Adobe website . Use the built-in Find function (Ctrl+F) to locate signal numbers.

Signal Box Prefix Codes

*Fringe Box,signals not controlled by this sim.
Code Box
CC Cowlairs Cowlairs Interlocking
CE Cowlairs Eastfield Interlocking
CEJ Carmuirs East Junction
CG Cowlairs Gartshore Interlocking
CN Cowlairs Garqueen Interlocking
CQ Cowlairs Queen Street Interlocking
CW Carmuirs West Junction
DB Dunblane
EL Edinburgh Linlithgow Interlocking*
EW Edinburgh Winchburgh Inerlocking*
FD Fouldubs Junction
GH Grangemouth Junction
GJ Greenhill Upper Junction
GL Greenloaning*
LG Longannet*
LJ Larbert Junction
LN Larbert North
MG Motherwell Gartsherrie Interlocking*
P Polmont
PB Polmont Bo'ness Interlocking
PJ Plean Junction
SK Stirling Middle (Kincardine Line)
SM Stirling Middle
SN Stirling North
YH Yoker Hyndland Interlocking*
YS Yoker Sunnyside Interlocking*

An Interlocking is the name given to the area controlled from one SSI Solid State Interlocking module (which is made up of 3 identical processors, to ensure that failures do not cause the system to go to an unsafe state (Wrong Side Failure)). The SSI is responsible for making sure all points, signal lamps etc. are proving correctly before allowing a change (point change, signal colour change, etc.) to occur. In areas controlled by some signal boxes, the signals are prefixed with the box name (e.g. C) for Cowlairs, followed by a second letter (e.g. E), which denotes the Eastfield Interlocking. However, railways being what they are, some boxes have 2 letters as the box name and do not reference Interlocking areas (e.g. all signals controlled by Warrington PSB are prefixed 'WN').

Timetabling & TIPLOC Details

Timetabling & TIPLOCs

Splash Screens

Mosaic and captions of the Start-up splash views

Central Scotland Splash Views

Version History

Version History

Central Scotland Reference Section

Last edited by Steamer on 29/12/2020 at 20:45