Download 6 signalling systems

2
RATO 6 Contents
CONTENTS
6 SIGNALLING SYSTEMS ............................................................................................ 7 6.1 DEFINITIONS, SYMBOLS AND ABBREVIATIONS............................................ 7 6.1.1 Symbols ................................................................................................................. 20 6.1.2 Abbreviations ........................................................................................................ 20 6.2 BASIC PRINCIPLES OF SIGNALLING SYSTEMS............................................. 21 6.2.1 General .................................................................................................................. 21 6.2.1.1 Engineering configuration requirements for signalling systems planning 21 6.2.1.2 Effect of maximum track speed in signalling systems planning ............... 22 6.2.1.3 Signalling apparatus code ......................................................................... 22 6.2.2 Interlocking system ............................................................................................... 22 6.2.2.1 Computerised interlocking system ............................................................ 23 6.2.2.2 Relay interlocking system ......................................................................... 23 6.2.2.3 Mechanical interlocking system................................................................ 23 6.2.2.4 Area key lock system with signals ............................................................ 24 6.2.2.5 Area key lock system ................................................................................ 25 6.2.3 Signals and signal aspects ..................................................................................... 25 6.2.3.1 Main signal aspects ................................................................................... 26 6.2.3.2 Block signal aspects .................................................................................. 27 6.2.3.3 Distant signal aspects ................................................................................ 27 6.2.3.4 Shunting signal aspects ............................................................................. 27 6.2.3.5 Signal aspects of other signals .................................................................. 28 6.2.3.6 Radio signal operation .............................................................................. 29 6.2.3.7 Fictive aspects and information on points position ................................... 29 6.2.3.8 Aspect abbreviations ................................................................................. 32 6.2.4 Track vacancy proving .......................................................................................... 33 6.2.5 Line block .............................................................................................................. 33 6.2.6 Connecting a point to signalling apparatuses ........................................................ 34 6.2.7 Route track............................................................................................................. 36 6.2.8 Main route ............................................................................................................. 37 6.2.8.1 Main route overlap .................................................................................... 38 6.2.9 Shunting route ....................................................................................................... 39 6.2.10 Level crossing system.......................................................................................... 39 6.2.11 Signalling system commands and indications ..................................................... 39 6.2.11.1 Commands .............................................................................................. 39 6.2.11.2 Indications ............................................................................................... 40 6.2.12 User manual ......................................................................................................... 41 6.3 INTERLOCKING SYSTEM.................................................................................... 43 6.3.1 General .................................................................................................................. 43 6.3.2 Track section.......................................................................................................... 43 6.3.3 Signal ..................................................................................................................... 43 6.3.4 Point and derailer ................................................................................................... 45 6.3.4.1 Powered point ........................................................................................... 45 6.3.4.2 Point equipped with a hand lever .............................................................. 48 6.3.4.3 Free of fouling restrictions ........................................................................ 49 6.3.4.4 Powered Derailer....................................................................................... 51 RATO 6 2009-12