Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

Level 2

Signalling Design: Module A17 -

Symbols for Plans and Sketches used in Signalling Applications

Endorsement and Authorisation

For endorsement and authorisation, please refer to NR/L2/SIG/11201

This document is the property of Network Rail. It shall not be reproduced in whole or part nor disclosed to a third party without the written permission of Network Rail.  Copyright 2011 Network Rail.

Uncontrolled copy once printed from its electronic source. Published and Issued by Network Rail, Kings Place, 90 York Way, London. N1 9AG.

[[[ Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

Issue record Issue Date Comments 4 June 2011 NR/L3/SIG/11004 incorparated into NR/L2/SIG/11201 5 03/09/2011 Amended references due to withdrawal of NR/L3/SIG/30018

Compliance This Network Rail standard is mandatory and shall be complied with by Network Rail and its contractors if applicable from 03/09/2011. When this standard is implemented, it is permissible for all projects that have formally completed GRIP Stage 3 (Option Selection) to continue to comply with the Issue of any relevant Network Rail Standards current when GRIP Stage 3 was completed and not to comply with requirements contained herein, unless stipulated otherwise in the scope of this standard. Disclaimer In issuing this document for its stated purpose, Network Rail makes no warranties, express or implied, that compliance with all or any documents it issues is sufficient on its own to confirm safe systems of work or operation. Users are reminded of their own duties under health and safety legislation. Supply Copies of documents are available electronically, within Network Rail’s organisation. Hard copies of this document may be available to Network Rail people on request to the relevant controlled publication distributor. Other organisations may obtain copies of this document from IHS. Tel: 01344 328039.

Page 2 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

Contents 1 Purpose 4 2 Scope 4 3 Definitions 4 4 Alterations to Existing Installations 4 5 General 4 6 Symbols for Use on Signalling Layout Plans 5 7 Symbols for Use on Bonding Plans 6 8 Symbols for Use on Ground Plans 6 9 Non-Standard Symbols 6 Appendix A – Layout Plan Symbols Appendix A1 7

Page 3 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

1 Purpose This standard, in support of NR/L2/SIG/11201, defines the symbols for plans and sketches used in signalling applications, so that the correct information is always conveyed without ambiguity. 2 Scope The standard applies to all signalling plans, scheme plans, location area plans, bonding plans, level crossing ground plans, operating notices, standards and instructions for use within the Railway Group. It incorporates the relevant symbols from British Standard BS 376: Part 1: 1951. Symbols, whether drawn manually or generated by computed aided design (CAD) systems, should comply with this standard. This standard does not apply to and display systems, which are covered by former railway group standard GK/RT0025 (as mandated by TI 157)and NR/L2/SIG/17504. It does not apply to electrification plans, with the exception of bonding plans that include information from both electrification and signal engineering disciplines. Symbols for a.c. section diagrams are shown in NR/L2/ELP/27500. Symbols for conductor rail plans are given on d.c. electrical equipment drawing RT/ETE/5/2/1; and for negative bonding plans on drawing RT/ETE/5/3/1. The standard does not apply to symbols for plans, which are shown in NR/L2/TRK/2049. The symbols that identify signalling requirements to be shown on permanent way plans are given in NR/L2/SIG/11752. The standard does not specify what information should be shown in any particular type of signalling design document, which is defined in NR/L2/SIG/11201. 3 Definitions Definitions are provided in NR/L2/SIG/11201/Appendix E. 4 Alterations to Existing Installations This standard is applicable to new and redrawn plans. Its application should be considered when plans of existing installations are to be altered, provided that no confusion is likely to arise by the use of these symbols within design, installation, commissioning or maintenance activities. The mixing of different symbol conventions on an individual plan is not permitted. Alterations to plans containing obsolete symbols should be dealt with either: a) by altering the plan using the former conventions or symbols; or b) by redrawing the plan in accordance with this standard. 5 General Presentation and convention for plans is covered in NR/L2/SIG/11201. The plan symbols represent all trackside equipment in general use, but have been designed so that symbols may be combined where a single symbol does not adequately represent the complete apparatus (e.g. a semaphore shunt signal that is both power operated and floodlit).

Page 4 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

The symbols are shown relative to the track, which in this standard, is assumed to be the horizontal. On actual drawings the track may be drawn in other orientations, as necessary, and the symbols should be rotated accordingly. Certain supplementary symbols, where the feature is provided consistently throughout the plan, need not be shown at each application but may be covered by a general note on the plan (e.g. the provision of signal post telephones at main signals capable of displaying a red aspect, or points requiring insulated soleplates). Any exceptions then require to be individually identified. Certain other features may be listed on the signal box notes in order to relieve congestion on the plan. Details are given in NR/L2/SIG/11201 Individual equipment should be further identified by means of the standard nomenclature specified in GK/RT0009 and other Railway Group Standards, including GK/RT0045 & GK/RT0192 and company standards NR/L2/SIG/11704. The nomenclature should be used consistently throughout an installation. See cross reference section 6 Symbols for Use on Signalling Layout Plans

The standard symbols for use on layout plans where the track is represented by a single line (e.g. signalling plans, scheme plans, location area plans and operating notices) are given in Appendix A. Note that symbols depicting the normal aspect of signals should generally be used, with the exception of operating notices which should use variants of the symbols that do not depict normal aspects. Additional engineering information necessary for location area plans is also identified. The sizes shown are the optimum for a 1:500 scale drawing, but may also be used for smaller scales. These standard sizes may, however, be varied if necessary, provided the symbols remain readable. The symbols are grouped as follows: Appendix A.1 Signals and Indicators: colour light; semaphore; relationship to track; slots; signal controls; repeating; and indicators. A.2 Lineside Signs: AWS; signalling; speed; and signal post. A.3 Switches and Crossings: layouts; and control. A.4 Track and Train Detection: general; track circuits; overlap limit; type identification; other train detectors; warning and protection systems; electrification; and additional information required on location area plans. A.5 Other Apparatus: block instruments; electric token; bells; telephones; and plungers. A.6 Level Crossings: gated; barrier; and miscellaneous. A.7 Structures: signals; civil engineering; electrification; and signalling control points.

Page 5 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

A.8 CTRL: Symbols relevant to CTRL Interfaces 7 Symbols for Use on Bonding Plans

The standard symbols for use on plans where the track is represented by a double line (e.g. bonding and track plans) are given in Appendix B. The tables are divided to show the different requirements for non-electrified lines, a.c. electrified lines and d.c. electrified lines. Those items of equipment that it is not considered necessary to depict on bonding plans are also identified. The sizes shown are the optimum for a 1:500 scale drawing, but may also be used for smaller scales. These standard sizes may, however, be varied if necessary, provided the symbols remain readable. The symbols are grouped as follows: Appendix B.1 Signals and Indicators: not required (see B.7 Structures). B.2 Lineside Signs: not required (see B.7 Structures). B.3 Switches and Crossings: plain line; and S&C layouts. B.4 Track and Train Detection: buffer stops; track circuits; IRJs; bonding; track circuit type identification; other train detectors; AWS; and electrification. B.5 Other Apparatus: not required. B.6 Level Crossings: as for layout plans (see Appendix A.6). B.7 Structures: signals; civil engineering; electrification; and GFs.

8 Symbols for Use on Level Crossing Ground Plans

The standard symbols for depicting level crossing equipment on large scale plans are given in Appendix C. Any other general engineering symbols necessary should be taken from BS EN 60617. Symbols for use on elevation drawings are also identified. The requirements for level crossing ground plans, including typical drawings showing the colouring convention, are given in NR/L2/SIG/11201 Module X02. 9 Non-Standard Symbols

If a symbol required for signalling purposes does not appear in this standard, another symbol (preferably from BS EN 60617) may be used, with a legend where necessary to explain its meaning. In certain instances, where neither the symbol nor the nomenclature fully conveys the information required, a sign (e.g. #) may be used to indicate that reference to notes on the diagram is necessary. Some obsolete symbols, which are not generally appropriate for new drawings, are shown in Appendix D for reference purposes only. Where old symbols are used

Page 6 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011 which are not included in Appendix D, a legend should be provided to explain the meaning. Appendix A – Layout Plan Symbols

Appendix A1

Colour Light Signals Colour of aspects:-

RED DOUBLE APPROACH LIT ASPECTS YELLOW WHITE R Y G Y W

GREEN

A Double Line represents the Normal Aspect of a signal where this needs to be shown.

Description Symbol Description Symbol

Non-passable Signal, controlled, 01 02 Multi-unit, Two Aspect, R:G. Multi-unit, Two Aspect, Y:G.

03 Multi-unit, Four Aspect, 04 Multi-unit, Three Aspect, R:Y:G. R:Y:YY:G.

Aspect, Capable of Flashing, 05 Aspect, Not Used. 06 eg.:- Double Yellow. eg.:- Green.

Position Light, associated with 07 Position Light, associated with 08 a Main Aspect, Beneath Main a Main Aspect, Offset, Aspect, Normally "OUT". Normally "OUT".

Multi-unit, Three Aspect, R:Y:G, 09 10 Position Light, Alphanumeric Multi-unit, Four Aspect, R:Y:YY:G, 7 Standard Route Indicator 7 Position Light, Standard Route suspended, alternative Indicators; mounted at Ground orientation shown. level, e.g. Co-acting Signal. Not used. 11 Not used. 12 A Example of Aspect Positioning 13 Auxiliary Lights . ux 14 and Splitting Distant Signals. used with single filament lamps. a) Lower Speed Diverging Main a) shows auxiliary yellow. Route to Left. Aspects of equal b) not used. height for equal speed routes. Non-passable Signal, automatic, 15 16 e.g. protecting traction supply AUTO R Colour Light Signal, section. Example shows Temporarily Not in Use. signal replacement facility. Independent Position Light Signal, 17 Independent Position Light, 18 normally "ON" indicated by bar. normally "OFF", a) RW:WW (3 aperture). b) not used. a) example shown elevated. Independent Position Light Signal, 19 Limit of Shunt. 20 with separately mounted a) Position Light, RR. LOS alphanumeric miniature route 7 b) Indicator. indicator. All can be elevated. a) b) 21 Proceed on Sight Aspect, associated Shunting, Set Back White Signals, 22 with a main signal. Normally "OUT", W when "OFF".

Page 7 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

A.1 (continued) Semaphore Signals Description Symbol Description Symbol Stop Signal, Generic symbol 23 Distant Signal, Generic symbol 24 where no further information where no further information need be conveyed. need be conveyed. 26 Stop Signal, Power Operated 25 Distant Signal, Power Operated (all types). (all types) 27 Distant Signal, Fixed. 28 Stop Signal, Fixed.

Reflectorised Stop Board. 29 Reflectorised Distant Board. 30 + supplementary legend to be + shown. Subsidiary Signal, Letter if 31 Semaphore Signal, 32 displayed:- C Temporarily Not in Use. "C" = Call On, "S" = Shunt Ahead. 33 Example of Arm Stepping and 34 Special Note, # symbol # Splitting Distant Signals, e.g. positioned adjacent to apparatus Lower Speed Diverging Main explained by # reference note. Route to Left. Arms of equal height for equal speed routes. Signal, Intensified Light. 35 Signal, Electric Lamp. 36

Miniature Arm, offset. 37 Shunting Signal, Single, Red 38 Arm, Normally "ON", Can be shown elevated.

39 40 Shunting Signal, Floodlit. Shunting Signal, Power Operated. 42 Shunting Signals, Multiple, 41 Tall Signals, Miniature eg.:- Three Arms, bottom Arms, eg.:- Three Arms, bottom signal shown Normally "OFF". signal shown Normally "OFF". Signals; Relationship to track

Description Symbol Description Symbol 43 44 Straight Post, Colour Light Signal, Straight Post, Semaphore Signal, Left of Track for direction of Right of Track for direction of running to which it applies running to which it applies. (preferred arrangement). Colour Light Signals, 45 Colour Light Signals, example shows suspended example shows mounted below or on the face of gantry above gantry or cantilever. or cantilever.

46 + Represents the supplementary information that is required adjacent to the symbol on the plan. The requirement is explained in the description column.

Page 8 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

A.1 (continued) Slots

Description Symbol Description Symbol Semaphore, Stop Signal, 48 Semaphore, Distant Signal, 49 slotted from another box. slotted from another box.

Backslot, Slot operated by 50 Slots, Multiple, add one 51 Semaphore Stop Signal Ahead. additional arm for each control, (Slot between "stop" & "distant" example shows stop signal. arm on same post not to be shown.)

Slot. 52 Slots, Main Colour Light 53 a) Semaphore Shunting Signal. Signal & associated Position b) Independent Position Light Signal. a) b) Light Signal. Controls Description Symbol Description Symbol Signal, the lever of which is 54 Signal, the controls of which are 55 Electrically Locked Released by the Block at

(semaphore or colour light). "Line Clear" B Only required on mechanical frames. (semaphore or colour light). Signal, the controls of which are 56 Signal, the controls of which are 57 Released by Token Released by Key (semaphore or colour light). (semaphore or colour light). Automatic Signal, having 58 Signal, Last Wheel 59 Replacement facilities from * Replacement Facilities (shown in * the Signal Box. R Signal Route Tables only). L Controlled Signal, Automatic 60 61 * Signal, Controlled by Level Working Facility provided. A Crossing Gate Box but * Supervised by Main SB. X

Repeating [any combination at a signal as required]

Description Symbol Description Symbol Arm or Aspect, Electrically 62 Light, Electrically Indicated in 63 Indicated in SB. * SB. AR * LR

Slot, Electrically Indicated in 64 Arm or Aspect and Slot ON, 65 SB. *SR Slot OFF, Electrically * Indicated in SB. ASR Banner Repeater, 66 Banner Repeater, Splitting, 67 a) Normally "ON" eg.:- Lower Speed Diverging b) Normally "OFF". Main Route to the Left. a) b)

* These signaller’s facilities may be shown in the Signal Box Notes or Table of Signal Routes (see NR/L2/SIG/11201/Module A18) rather than on the plan.

Page 9 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

A.1 (continued) Indicators [Alphanumeric Standard Indicator drawn Square / Miniature Indicator drawn half size and Rectangular] Show relative position of indicators to signal. Route characters, signal class and descriptions to be shown in Table of Signal Routes (see RT/E/C/11701).

Description Symbol Description Symbol Indicator, showing all 68 Alphanumeric Standard Route 69 possible diverging route Indicator(s). Numeral indicates 7 indicators. the number of route indications.

Alphanumeric Standard Route 70 Alphanumeric Miniature Route 71 7

Indicator, eg.:- alternative Indicator(s), associated with 7 position, avoiding confliction with position light signal routes. Miniature Indicators for "CD" - RA CD Numeral indicates the number Close Door & "RA" - Right Away. of route indications.

Alphanumeric Indicator, 72 Alphanumeric Indicator, can 73 Double Sided, miniature. indicate:- [TT] Tripcock Test / [OFF] Off / [BT] Brake Test / TT No Longer Permitted with Signals. [BU] Barriers Up / [RA] Right Example shows platform indicator Away / [CD] Close Doors. hung from canopy. Loading / Unloading Indicators, 74 Driver's Level Crossing Indicator, [DCI]:- aspects R:W Flashing 75 Points Indicator. 76 Indicator. 77 S

Carriage Depot Indicator. 78 TPWS Lineside Status Indicator 79 # supplementary legend. # for RETB Lines, B Blue Light on White Board. Composite RETB/TPWS 80 Composite RETB/TPWS 81 B Stop Board. # Distant Board. B # supplementary legend. Markers

Description Symbol Description Symbol

Fixed Block Marker. 82 Shunt Limit Marker. For use on 83 For use on lines with cab lines with . signalling. Arrow points Arrow points to applicable line. to applicable line. 84 85 Platform Stop Marker, where + Mid-platform Train Berth Marker. required for signal sighting purposes. S

+ No. of cars or class of train. Rear Clear Marker. 86 Radio Electronic Token Block, 87 Station Limits/Loop Clear Marker.

# Represents the supplementary information that is required elsewhere on the plan. The requirement is explained in the description column. + Represents the supplementary information that is required adjacent to the symbol on the plan. The requirement is explained in the description column.

Page 10 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

A.2 Lineside Signs (see GI/RT7033 for application details) Train Warning and Protection Systems

Description Symbol Description Symbol

WS AW 01 Commencement of Gap. 02 Cancelling Indicator. S AW

WS AW 03 04 Termination of Gap. Warning of Cab Signalling. CAB

05 06 Commencement of Cab Signalling. CAB Termination of Cab Signalling. CAB

Signalling Signs

Description Symbol Description Symbol Notice Board, Reflectorised, 07 Notice Board, Internally Lit. 08 # supplementary legend. # # supplementary legend. #

Notice Board, Flood Lit, 09 10 # supplementary legend. #

Cab Secure Radio [CSR], CSR 11 National Radio Network [NRN], 12 ++ NRN reflectorised, reflectorised, +++ Radio Channel Change Board. Radio Channel Change Board. ++ channel number. +++ channel number. GSM-R equipped area, GSM-R 13 14 a) Radio Electronic Token Block RETB reflectorised, [RETB], reflectorised, +++ a) commencement, b) termination. GSM-R Radio Channel Change Board. b) +++ channel number. 16 Advanced Warning Board for 15 Whistle Board. AOCL / ABCL / OC Level Crossings, Reflectorised. Signal Post Signs

Description Symbol Description Symbol White "Diamond". 17 Combined "Diamond" and "X" sign. 18

19 20 Limited Clearance Telephone. Passable Signal, automatic.

21 Passable Signal, controlled, 22 Intermediate Block Home A Signal. # type of control, e.g. # "single button control". Example shows automatic working facility. 23 24 Special Speed Restriction Board, + Distant Signal. miniature, repeating. X + speed (in mph). # Represents the supplementary information that is required elsewhere on the plan. The requirement is explained in the description column. + Represents the supplementary information that is required adjacent to the symbol on the plan. The requirement is explained in the description column.

Page 11 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

A.2 (continued) Speed

Description Symbol Description Symbol Permissible Speed Warning 25 Permissible Speed Warning 26 Indicator, Directional arrow + Indicator, Non-standard as required. Differential speeds. + +

Permissible Speed Indicator, + 27 Permissible Speed Indicator, 28 Directional arrow as required to Non-standard Differential speeds. + + indicate divergence speed.

Permissible Speed Warning 29 Permissible Speed Indicator, 30 Indicator, Standard Differential +/+ Standard Differential speeds. +/+ speeds.

Permissible Speed Warning 31 Permissible Speed Indicator, 32 + + Indicator, miniature, for limited miniature, for limited clearance or as repeater, example. clearance or as repeater, example. Enhanced Permissible Speed (EPS) 33 34 ++ Enhanced Permissible Speed (EPS) Warning Indicator / Permissible Indicator / Permissible Speed Warning Indicator for TASS Speed Indicator for TASS enabled areas enabled areas Temporary Speed Warning + 35 Temporary Speed Warning 36 Board, directional arrow as Board, Differential Speeds, + + required, reflectorised. reflectorised.

Emergency Speed Warning 37 Temporary Speed Repeating 38 Indicator. Warning Board, reflectorised.

Temporary Speed Indicator, 39 Temporary Speed Indicators, 40 directional arrows as required, + Differential Speed, reflectorised. ++ reflectorised.

Temporary Speed Restriction 41 Spate Indicator, 42 Termination Indicator, reflectorised. reflectorised. Open Level Crossing, Combined 43 44 + Temporary AWS Cancelling AWS Speed Restriction / Whistle Board. Indicator, reflectorised.

Automatic Level Crossing, + Automatic Level Crossing, 46 Special Speed Restriction Board. + Special Speed Restriction Board, X X + + a) Right Direction. Differential Speeds. X b) Wrong Direction. a) b)45 Countdown Markers. 47 Signal Reminder Board. 48 # Supplementary wording, e.g. # "700m to signal L100".

+ Represents the speed (in mph) that is required adjacent to the symbol on the plan. (Where speeds in km/h are necessary, they should be prefixed by "K".) # Represents the supplementary information that is required elsewhere on the plan. The requirement is explained in the description column.

Page 12 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

A.3 Switches and Crossings

Point Layouts Description Symbol Description Symbol Lie of Points, set for straight 01 Hand Worked Points, Ordinary, 02 route, showing normal position. [2 way spring], trailable.

Hand Points, One Way Spring, 03 Swing Nose Crossing. 04 eg. . s

Fixed Diamond Crossing. 05 Movable Switch Diamond. 06

Single Slip. 07 Double Slip. 08

Trap Points, 09 Trap Points, 10 Double Switch. Single Switch.

Derailer, arrow indicates 11 Trap Points, Wide to Gauge. 12 direction of .

Control Types Description Symbol Description Symbol Hydro-Pneumatic Self Restoring 13 Points, worked from Signal Box, 14 Points, Train Operated. straight route when function normal. + + Lever Number and + + Identification Number. Identification Letter. Points, Worked by Ground 15 Detection of Mechanical Points, 16 Frame, Ground Panel or Shunting Mechanical Detection shown Frame, all released from a 3 in Table. Electrical Detection + ED controlling Signal Box. Number shown ED. enclosed in a symbol (but not a + Lever Number and square or rectangle). Identification Letter. 18 Points with Facing Point Lock, + Points with FPL, but no bar, 2 Levers. 1 lever. 30 + Lever Numbers and Identification Letters. + 17 20 Points with FPL and FPL bar, 32 Point Operating Handle, 2 levers. Example shows 32 works for manual point operation. points; 31 operates FPL & bar. 31 19 Points Clipped and Padlocked 21 22 "Out Of Use" in accordance with GI/RT7004. C & P

Additional Information for Location Area Plans Description Symbol Description Symbol 6 foot Point Operating Mechanism, 23 24 + 4 foot Point Operating Mechanism + includes FPL unless noted, e.g. on LH * e.g. Clamp Lock, includes FPL. * of track. May be shown on Sch Plan. + Point No. and suffix, type of + Point Number and Suffix, mechanism, e.g. HW, 63, HPSS. type of mechanism, e.g. CL. Special Note, # symbol 25 Yard points, Power Operated, 26 positioned adjacent to points trailable. * explained by # reference note. # (Can be used for split detection or extra backdrives.) Point Crank Handle (CH) / Pump 27 Point Heating, controlled from SB. * Handle (PH), for manual point PH GPH = Gas. operation. EPH = Electric. 28 EPH + Represents the supplementary information that is required adjacent to the symbol on the plan. The requirement is explained in the description column. * This information may be shown in the Signal Box Notes (see NR/L2/SIG/11201/Module A18) rather than on the plan.

Page 13 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

A.4 Track and Train Detection

Miscellaneous

Description Symbol Description Symbol

Track Normal Direction 01 Track and Directional Arrows, 02 Arrow, and Line Name. UP FAST Bi-directional. UP & DOWN FAST

Track and Directional Arrows, 03 Gradient Posts, lengths for unit L L Bi-directional with predominant UP FAST rise or fall, eg.:- falling 1 in 100; direction of movement. Level; Rising 1 in 1000. 04 Pull Wires (trip wires). 05 Gradient Posts for unit rise P+ L L + length. or fall in % terms. 06 07 08 Mile Post, also Quarter, Half ¼½ ¾ Kilometre Post. and Threequarter Posts.

Buffer Stop, with:- 09 Scotch Block. 10 a) No Light, a) b) c) b) White Light, c) Red Light. Sand Drag. 11 Sand Hump. 12 + + a) with , + length. + b) without Buffer Stop. + length. a) b) Track Circuits

Description Symbol Description Symbol 13 14 Track Circuit boundary, AA Individual Track Sections, generic, track circuits in both directions, AB example of identification AA AB AC includes jointless track circuits. lettering. a) Stainless Steel Welded Strip. 16 a) Short Track Section. + + b) Gap. b) + length. + lengths. + 15 17 Strike in Point, with 18 Track Circuit Interrupter, INT R INT R to be shown where interrupter track circuit joint. SIP relay is repeated separately from Track Circuit.

Clearance Point Joint A foul, 19 Critical Clearance Point identified 20 as Fouling Point, Joint B at FP Joint B clear. A CP Fouling Point plus critical 1.97m measurement. (See GK/RT0011.) B B State measurement required, e.g. 1.97m + 4.88m (min). 4.88m (min) Impedance Bond, External 21 Impedance Bond, Internal 22 Tuning. Tuning.

+ Represents the supplementary information that is required adjacent to the symbol on the plan. The requirement is explained in the description column.

Page 14 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

A.4 (continued) Overlap Limits

Description Symbol Description Symbol

Overlap for signal on left, 23 24 AA AB Overlap for signal on right, AA AB standard length (180/183m). standard length (180/183m).

26 Where applicable to several Non-standard overlap length. signals and identification is required. * Example shows signals 2 & 3 at L2 * length. Signal Box "L". L3 25 Restricted Overlap for warning aspect and Full 27 Overlap. ROL * * overlap length. Restricted and Full Phantom Overlaps. RPOL * POL * 28 * effective overlap length.

Block Acceptance Overlap (Clearing Point). a) b) BOL 29 BOL * a) co-incident with track circuit boundary, * b) not co-incident. * effective overlap length.

Bi-directional Line, Common 30Bi-directional Line, Common 31 Overlap for opposing signals. Overlap for opposing signals, * m * m Add signal numbers if confusing. dimensioned, with Signal Numbers. L1 L60 * overlap lengths. L62

Type Identification (may be shown on Location Area Plan instead)

Description Symbol Description Symbol 32 Alternating Current [AC]. 33 Generic Track Circuit Symbol (all AB AB ( Hz) types of continuous train detection). ** frequency. **

DC Diode. 34 DC HVI. 35 AB ( ) AB (HVI)

Frequency, Aster / UM / Reed. 36 Frequency, Centre Fed. 37 Aster/UM: **** frequency in Hz. AB (f***) * frequency in Hz, or channel. AB1 (f ) AB2 Reed: *** frequency channel * (f211 to f219). TI 21. 38 FS2600. 39 * channel (A,B,C, etc.) AB (f*) * channel (1,2,3, etc.) AB (CH*)

Overlay Track Circuit. 40 a) TC AID D [detects in a) b) 41 direction of arrow only] AB b) TC AID N [detects both AB ways. Section, 42 Axle Counter, example 43 counting in and out. AA (X) with overlap.

Transitions (dimension to centre of symbols).

Description Symbol Description Symbol Track Circuit on left, none on right. 44 Axle Counter end section. + 45 + Example shows track circuit to + AA left and axle counter to right.

Track Circuit on right, none on left. 46 Track Circuit on right, none on left, 47 + + AB example with overlap. AB

* Represents the supplementary information that is required adjacent to the symbol on the plan. The requirement is explained in the description column. + The element located at the centre line of these symbols should be used for dimensioning and scaling purposes.

Page 15 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

Other Train Detectors

Description Symbol Description Symbol , Operational Both Ways, 48 Treadle, Operational Both Ways, 49 Contacts Normally Open. Contacts Normally Closed.

Treadle, Operational Both Ways, 50 Treadle, Operational One Way, 51 Contacts Normally Closed, Independent Contacts, Example shows treadles on Normally Open. both rails. 52 53 Depression Bars, electrical. a) b) Axle Counter, arrow indicates a) Independent. effective direction of operation. b) Working with track circuit. E T Example shows level crossing use. 55 Detonator Placer. 54 Hot Axle Box Detector. a) single shot, normally ON. a) b) c) d) b) single shot, normally OFF. c) double shot, normally ON. d) double shot, normally OFF.

Train Warning and Protection Systems

Description Symbol Description Symbol

Trainstop. 56 Trip Cock Tester. 57

Automatic Warning Stystem, 58 AWS, Permanent & Electromagnet 59 Permanent Magnet Only. P at 180/183m from signal, where signal can display a green aspect, effective for direction of line only. AWS, Depot Test Inductor. TEST 60 AWS, effective for movement 61 in direction shown, suppressed for opposing moves.

AWS, non-standard distance. + 62 AWS, Selected suppression for 63 + distance to signal, e.g. normal direction of traffic, e.g. 230m for line speeds over 100mph. unfitted to fitted routes & SPAD. AWS, one installation on bi- 64 Portable AWS. 65 directional line, effective in both directions, non standard distances. + 186m (L2) + signal number(s) and distance(s) 198m (L3) as necessary. Track-Train Data Transmitter. 66 Track-Train Data Transmitter, 67 Arrow indicates direction of travel. Infill transmission limits.

ATP, remote beacon. 68 ATP, beacon at signal. 69 SD Arrow indicates direction of travel. + Arrow indicates direction of travel. + distance to signal, e.g. 800m.

ATP, loop, short. 70 ATP, loop, long. 71 Arrows indicate direction of travel. + Arrows indicate direction of travel. + + length, e.g. 100m. + length, e.g. 800m. TPWS, overspeed sensor, arming & 72 TPWS, trainstop, arming & trigger 73 trigger loops. + frequencies. ARM (f+) TRIG(f+) loops at signal. + frequencies. ARM(f+)/TRIG(f+) Arrow indicates direction of travel. Arrow indicates direction of travel. Other details as per RT/E/S/10133. Other details as per RT/E/S/10133. 74 75 ETCS type on Uni-directional a) # Balise on Bi-directional line line (one balise symbol shown), + (two balise symbols shown) TASS TASS + Identification Number + Identification Number. + + # application code, e.g. "TASS". b) # Example shows TASS . a) travelling to right, b) to left. +

+, # Represents the supplementary information that is required adjacent to the symbol on the plan. The requirement is explained in the description column.

Page 16 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

A.4 (continued) Staff Protection

Description Symbol Description Symbol Train Activated Warning System. 76 Lockout System limits of 77 Limits of Protection. protection. If protection is not complete, notes to cover.

Fringe Areas

Description Symbol Description Symbol Area Covered by a Signal LIMIT OF 78 Boundary of Area Covered by 79 Box, Limit. TC IND. , across width of TO +++ +++ Signal Box name. (DN MAIN) plan if possible. Note: ARS sub-areas and SPAD sub-areas not to be shown on plan, but listed elsewhere. Additional Information for Location Area Plans

Description Symbol Description Symbol Area Covered by Location Case 80 Cable Routes: 81 or Relocatable Equipment [SCT] surface concrete troughing, Building, dotted line surrounds [GRC] glass reinforced concrete, equipment area on all lines. [BD] buried direct, [SCT] [BCT] buried concrete troughing, [BTR] buried tube route, [BKS] on brackets, or [CAP] concrete asbestos on post. Cable Bridge or Gantry. 82 Cable Pit and Under track P + 83 (track) Crossing [UTX]. (track) + number of ducts. P + 84 85 Generic Track Circuit, AB DC Track Circuit, Feed end F = feed, relay. AB R = relay. FR R/F R 86 87 AC Track Circuit, AB(+Hz) Frequency Track Circuit, e.g. + frequency. TI 21, Reed, Aster, or FS2600. AB (f+) FR HVI similarly, but with Tx & Rx. Tx = transmitter, Rx = receiver. Tx Rx 88 Location Case, preferred arrgmt. 89 Frequency Track Circuit, AB1 AB2 + Centre Fed. R x R x + = number of cases, Tx = front. Power Lines crossing railway. X 90 Location Case, non-preferred + 91 (track) X arrangement. X + = number of cases, X = front. + Represents the supplementary information that is required adjacent to the symbol on the plan. The requirement is explained in the description column.

Page 17 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

A.5 Other Apparatus

Description Symbol Description Symbol Block Instrument, Permissive, 01 Block Instrument, Permissive, 02 Peg. Non-Peg. * *

Block Instrument, Absolute, 03 Block Instrument, Absolute, 04 Peg, Uncontrolled. + Non-Peg, Uncontrolled. * * +

Block Instrument, Absolute, Peg, 05 Block Instrument, Absolute, 06 Controlled, + add WELWYN + Non-Peg, Controlled. CONTROL adjacent if applicable. * + * +

Block Instruments, Combined, + 07 Block Switch, a) 08 Controlled, Bell, Welwyn a) Plain, b) Control. * + WELWYN b) With Control. * CONTROL

Electric Token Instrument, 09 No Signaller Token 10 K = Key, S = Staff, ' A ' Instrument. Arrow indicates T = Tablet, MS = Miniature section. Staff. Configuration to be shown. K NST 'A' = Configuration.

Key Release Instrument. 11 10 K

Occupation Key Instrument, or + 13 Switch Lock and Indicator 14 (track). Patrolman's Lockout. K + SB Release Number.

Bell / Gong: a) b) 15 K = Klaxon; H = Horn; 16 a) Trembler, S = Siren; Y = Yodalarm. Y Y Y b) Single Stroke Bell / Gong. Single and Double Sided.

Telephone: 17 Telephone Plug Point. 18 a) Direct to , a) b) b) Other. PZ E PZ = point zone telephone, E = electrification telephone. * Telephone, 2 19 Public / Occupation / 20 Two Way Ringing, + Accommodation Level Crossing, + function of telephone. * Block Indicator. + (Show two if double indicator.) PLUNGER OR SWITCH; (one symbol per switch or plunger) Indications to Driver; 21 BT = Brake Test, CD CC = Crossing Clear, CD = Close Door, ES = Emergency Stop, RA = Right Away. Indications to Signalman; CDI = Carriage Depot Indicator, SR = Shunters Release, TA = Train Arrived, TRTS = Train Ready To Start. Staff Protection control; LT = Lockout, TAWS = Train Activated Warning System, Other; to be defined on drawing.

* This information may be shown in the Signal Box Notes or the general notes (see NR/L2/SIG/11201/Module A18) rather than on the plan. + Represents the supplementary information that is required adjacent to the symbol on the plan. The requirement is explained in the description column.

Page 18 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

A.6 Level Crossings

General

Terminology Symbol Terminology Symbol Generic Level Crossing, 01 +++ Crossing name and type: ABCL Automatic Barrier Crossing, locally monitored, AHBC Automatic Half Barrier Crossing, +++ AOCL Automatic Open Crossing, locally monitored, BC Barrow Crossing, MCB(CCTV) Closed Circuit TV Crossing, MCB Manually Controlled Barrier, MG Manned Gates, RAILWAY MSL Miniature Stop Lights, MWL Miniature Warning Lights (not for new work), OC Open Crossing, MCB(RBC) Remote Barrier Crossing (not for new work), ROAD TOB Traincrew Operated Barriers, TOG Traincrew Operated Gates, UWC User Worked Crossing.

Gated

Terminology Symbol Terminology Symbol

Gate, Uncontrolled, Worked from 02 Gate, Interlocked, Worked 03 ground, normal position of gate from ground. solid, swing and direction dotted, opening away from railway, add K if lock provided. K

Gate, Interlocked, worked 04 Manned Gate Operation Control 05 from Box. # L = Lever, W = Wheel, # indicates position of P = Power Operated, B = Blacks Locks, example: Wicket, Spring Gate or Cage C = ‘C’ Locks, as required. K = Key Locks. MG (W)

Gate, Non Sympathetic, two, 06 Gates, Sympathetic, four, 07 Interlocked with signalling. Interlocked with signalling, Add note referring to type of worked from SB, add note operation. referring to type of operation.

a) Spring Gates, 08 b) Wickets, a) B) c) d) c) Cages, d) Control for above, add C to gate. c

+ Represents the supplementary information that is required adjacent to the symbol on the plan. The requirement is explained in the description column.

Page 19 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

A.6 (continued) Barrier Description Symbol Description Symbol Half Barrier, not worked 09 Full Barrier, controlled by other 10 from SB. Applicable to than SB, eg. Single barrier, AHBC & ABCL. applicable to TOB, RBC & UWB.

Full Barrier, controlled from SB, 11 Position of Local Control 12 eg. using two barriers, applicable Unit. to MCB & CCTV. LCU

Miscellaneous

Description Symbol Description Symbol Miniature Stop (Warning) Lights 13 Barrow Crossing Lights, 14 (Pedestrian). (white only).

Miniature Stop (Warning) Lights 15 Road Traffic Lights, 16 (Vehicular). (RTL).

St Andrews Cross Sign. b)a) 17 Give Way Sign, 18 a) OC, (open crossing). b) AOCL. Level Crossing Illumination, 19 Closed Circuit Television 20 (floodlight). Camera.

Foot Access Point to 21 Vehicle Access Point to 22 Railway. F Railway. V

Authorised Walkway Across W 23 Footpath Across Railway. FP 24 Railway (Staff Crossing). Public Crossings, a) FP = Footpath, b) BW = Bridleway.

Driver’s Operating Device 25 26 e.g. plunger or pull wire for AOCL.

Page 20 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

A.7 Structures

Signals [mileage / kilometreage to be shown at base of structure]

Description Symbol Description Symbol

Signals, Straight Post. 01 Half Bracket. 02

Side Bracket on Straight 03 Tee Bracket, Equal Sided 04 Post. Bracket.

Suspended Doll from other 05 Side Fixing on other 06 construction. construction.

Signal Gantry. 07 Signal Cantilever. 08

Railway Constructions

Description Symbol Description Symbol

Overbridge, + number. + 09 Bridge, Movable Span Swing + 10 or Bridge, Tunnel, + name and length. + name and number. Underbridge: + 11 Turntable, Engine. 12 + number, or Viaduct: + name, number and length. Turntable, Wagon or 13 Turntable bolt. 14 Coach.

Station Platform, 15 Traverser over 3 tracks. 16 + name and number, + effective length. Water Column 17 eg.:- for 2 tracks.

+ Represents the supplementary information that is required adjacent to the symbol on the plan. The requirement is explained in the description column.

Page 21 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

A.7 (continued) Electrification

Description Symbol Description Symbol 18 19 Electric Traction: Sub Station (S), Track Paralleling Hut (T), TSC S FS Feeder Station (FS). Track Sectioning Cabin (TSC), T Arrow indicates connection Arrow indicates connection point of return feeder. point of return feeder. Neutral Section. Automatic Power Control 20 21 Magnets (APC) Dots indicate limits of restricted APC (if symbol required). area for signal positioning.

Electrification Gantry, 22 Booster Transformer. 23 Arrow indicates connection B not shown on signalling plans. point to . Dots indicate limits of restricted area for signal positioning. Electrification Mast, 24 Electrification Mast with 25 not shown on signalling plans. Headspan, not shown on signalling plans.

Signalling Control Points

Description Symbol Description Symbol

Crossing Keeper’s Hut, or 26 Relay Room, RR, 27 Gate Box (unless a symbol G Relocatable Building, REB. RR below is applicable). + Ground Frame, Uncovered, + 28 Ground Frame, Covered, 29 e.g. Operator back to track. eg. Operator Sideways to Track, No. of Strokes = No. of levers. + SB release number + SB release number and method if mechanical. and method if mechanical. GF, Ground Panel, Uncovered, + 30GF, Ground Switch Panel, Covered, + 31 eg. Operator Facing Track, e.g. Operator sideways to track, No. indicates the No. of functions. 5 No. indicates No. of functions. 5 + SB release number. + SB release number. Power Signal Box, with 32 Power Signal Box, Console 33 Panel only. and Diagram.

Signal Box (Control Centre), 34 Signal Box, , 35 with VDU Workstation. example shows operator back to track.

+ Represents the supplementary information that is required adjacent to the symbol on the plan. The requirement is explained in the description column.

Page 22 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

A.8 Symbols relevant to CTRL Interfaces

A8. Symbols Relevant to CTRL Interfaces

Description Symbol Description Symbol AWS Automatic Warning AWS 01 Cab Signalling Sign 02 System A) Warning CAB CAB CAB A) entry B) Execute B) B) exit A) C) End A) B) C) “SECT. 1000m” 03 04 End of Restriction Circuit Breaker Sign Indicator

Warning Open Close

Change of Current 05 CTRL CTRL 06 Start and End of CTRL Collection Zone Control Warning Start End 07 Stop and Proceed Marker 08

Start and End of Network NR NR (unless a KP is indicated, P Rail Control the relative TC joint is located 11m in advance of the marker) Absolute Stop Marker 09 Shunt Marker. 10 with Auxiliary Signal. (unless a KP is indicated, (unless a KP is indicated, the relative TC joint is the relative TC joint is located 20m in advance of located 20m in advance of the marker) the AM marker) Illuminated 11 Afxxx-CA 12 Hidden Marker with Red Co-Acting Marker Light

Ground Mounted Marker. 13 14 (Marker identification and P Phantom Marker type plates installed 2m in rear)

End of TC 15 16 “Track-circuit” “Track-circuit” Insulated Rail Joint Electrical Joint IRJ

17 Motorised turnout Fouling Point 18 Exp. Jt without swing nose 2220

Expansion Joint 50.179 50.219 *The KP indicated * FP materialize the point joint. Motorised Turnout 19 20 without Swing Nose Fouling Point Unidirectional ITL (KP 42 - blades : 2224E 2224E 2224S indicated is the upstream - swing nose : 2224S * FP extremity) * The KP indicated materialize the point joint Bidirectional ITL 72 21 22 (KP indicated is the

middle of the loops) Arming cab-signal ITL Ar (7m is the length of the (Unidirectional) ITL unless adverse indiction) 23 TCH... 24 Disarming cab-signal ITL Track Change ITL (Unidirectional) De (Bidirectional) IRJ

Page 23 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

A.8 (continued) CTRL Symbols

Description Symbol Description Symbol 25 “Lowering Pantograph” 26 Tunnel announce ITL A) Exit / Entry ITL TUX/TUN TUN/TUX TUX/TUX Warning for Change of WCCZ B) Entry / Exit ITL C) Current collection Zone C) Exit / Exit ITL A) B) (WCCZ) “Lowering Pantograph” 27 28 “Cut-current” announce execute ITL ITL WNS Start of Change of SCCZ Warning for Neutral Current collection Zone Section (WNS) (SCCZ) 29 Automatic Warning FGV + EAWS 30 “Cut-current” execute System ITL ITL DAWS OCB EAWS function can be Open Circuit Breaker Entry arming combined with FGV for Disarming (OCB) class 92 EAWS 31 Automatic Power control 32 magnet usually used by DGV Speed Control BR for “Open Traction KV22 KV30 22km/h 30km/h Breaker” to check TVM APC 430 armement on “class 92” locos 33 34 Permanent Information Beacon Switchable Beacon

35 36 “CAB signalling arming DGV FGV REO check” A) B) Releasing Speed Control A) activation 01 39 43 B) de-activation “Emergency Replacement 37 38 Switches” (“n” = number of 49.9 EZP n : trackside EZP protection switches) ERS switch for the EZP EZP Identified by its chainage n (named “n”) n (kilometre followed by hectometre)

39 Point Key Switch Point 2220 40 Local release of signalling LRn Crank-handle release key controls (numbered “n”) on electric operated point machine no. 2220 2220 Point Key Switches for 41 42 Point 2224 turnout with swing nose Key Withdrawn (a key for the blades and a

key for the swing nose 2224 2224 Key Inserted motor) Maximum authorised 43 44 speed Speed Limit Translation KP 270 270 270 270 A) in both directions A) in down direction 300 B) in down direction A) B) C) B) in up direction A) C) in up direction B) KP Kilometre point 41 45 44 Platform 1 Hectometre point

Page 24 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

A.8 (continued) CTRL Symbols

Description Symbol Description Symbol 47 48 STATION Name ITCS Turnouts assembly area Signalling Room (ITCS) KP SR

49 Feeder Station NAME Feeder Station

Page 25 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

Appendix B Bonding Plan Symbols

Description Non Electrified Line AC Electrified Line DC Electrified Line Symbol [NE] Symbol [AC] Symbol [DC] B.1 Signals and Indicators: Signal Base position Additionally, base to Signal Base position [see B.7 for Structures]. and distance (miles / be earthed. and distance (miles / kilometres). kilometres). B.2 Lineside Signs: Any raised metal post signs shall be shown [see B.7 for Structures]. Not Shown. as for [AC] signal above. Not Shown.

B.3 Switches and Crossings: Non Electrified Line AC Electrified Line DC Electrified Line Description Symbol [NE] Symbol [AC] Symbol [DC] Plain Line. Not Track Circuited, 01 02 line name and directional Not Electrified, no continuity bond. arrows. UP MAIN

Continuity bond one rail. 03 c ccc

Continuity bond both rails. 04 cccc cccc Plain Line. Track Circuited. Single Rail. Thick line indicates insulated rail. 05 Alternative convention of colouring Thin line indicates the insulated rail is described in common rail. AA RT/E/C/11701.

Double Rail. 06 AA

Stainless Steel Welded Strip, along length shown. 07

Points:- Lie of points and 08 09 methods of control (with the exception of motor points requiring extended timbers & soleplates) do not need to be a) not insulated, b) insulated (symbol not required if a) b) all soleplates insulated). Permanent Way Layouts: The point identities and insulated rail joints are not shown in these examples, as they vary with the installation. a) Fixed Diamond Crossing, 10 11 b) Switch Diamond Crossing.

a) b) a) Single Slip, 12 13 b) Double Slip.

a) b)

Page 26 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

B.3 Permanent Way Layouts (continued). Non Electrified Line AC Electrified Line DC Electrified Line Description Symbol [NE] Symbol [AC] Symbol [DC] a) Trap Point without crossing, 14 15 b) Trap Point with crossing.

a) a) a) Wide to Gauge Trap, 16 17 b) Derailer.

a) b)

Scissors Crossover 18

a) Swing Nose Crossing, 19 20 b) Points Clipped & Padlocked C&P Out Of Use [C&P].

a) b) a) Point Numbering and 21 22 HW Identification Lettering, 26A b) Point controlled by Point Motors [Left Hand fixing shown], requiring extended sleepers & soleplates. a) b)

B.4 Track and Train Detection: Line Names, Directional arrows and Mile / Kilometre Posts should be shown. Gradient Posts need not be shown, but may assist location of equipment. Sand Drags and Sand Humps as A.4, but over both rails. Non Electrified Line AC Electrified Line DC Electrified Line Description Symbol [NE] Symbol [AC] Symbol [DC] Buffer Stops, 01 02 a) insulated, b) not insulated.

a) b)

Scotch Block requiring 03 insulating.

Track Circuits [TC]

Non Electrified Line AC Electrified Line DC Electrified Line Description Symbol [NE] Symbol [AC] Symbol [DC] Insulated Rail Joints [IRJ] 04 between separate TC's. Single Rail. insulated rail AA AB common rail (used for traction return) For alternative presentation using Single to Double Rail. 06 coloured rails, see RT/E/C/11701. AA AB AA AB 05 Double Rail. 07 08

AA AB AA AB

Page 27 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

B.4 Track Circuits [TC] (continued) Non Electrified Line AC Electrified Line DC Electrified Line Description Symbol [NE] Symbol [AC] Symbol [DC] IRJ between sections of the 09 same TC or overall TC. Double rail TC's shown. AA1 AA2

IRJ, TC to left, none to Single Rail. 10 11 right. AA AA C C C C C C Double Rail. 12 13

AA AA C C C C C C Jointless connection between 14 two separate TC's: Tuned Zone. AA AB

Jointless connection between 15 two separate TC's: Overlay (one end feed), RH end. AA AB

Standard Track Circuit Series 16 Bond.

Track Circuit Paralleling or 17 N / A 18 Continuity Yellow Bond. Y

Traction Return Bond. N / A 19 20

AA AA

Traction Red Bond. 21 RC 23 N / A 22 AA R R

AA S

Transposition Bonds. Single Rail. 24 25

AA AA AA AA

Double Rail. 26 27

AA AA AA AA

Traction Cross Bonds or N / A 28 Single Rail. 29 Continuity Yellow bond. AA Y BA 30 31 N / A Double Rail. AA

BA

AC Traction, N / A 32 a) EW RC 33 N / A 34 a) Earth Wire, b) b) Return Conductor. R

Page 28 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

B.4 Track Circuits [TC] (continued) Non Electrified Line AC Electrified Line DC Electrified Line Description Symbol [NE] Symbol [AC] Symbol [DC] DC Traction Return N / A 35N / A 36 37 Imbalance Bond / Jumpers. Alternatively symbol 27 may be used.. AA AA

Impedance Bond, N / A 38 39 40 a) Internally Tuned, b) Externally Tuned. a) b) Track Circuit end connections; 41 show tail cables only when not TB RN shown on circuit diagrams. AA AB TN RB TCAID a) b) 42 a) D (only in one direction as arrow), AB b) N (both directions). a) Short TC, 43 + 44 b) Gap, a) b) + state length.

+

Trap Points with insulated TB 45 Interrupter. TN

Trap Points. Add INT R Where 46 insulated Interrupter is repeated INT R separately from track circuit.

Wide to Gauge Trap Points #1 47 fitted with two insulated interrupters and Relay. #2 a) Clearance Point; Joint A foul, 48 49 Joint B adequately clear, A A b) Critical Clearance Point a) b) FP identified as Fouling Point; Joint CP B at fouling point, plus critical 1.97m measurement. (See GK/RT0011.) B B State measurement required, 4.88m (min) e.g. 1.97m + 4.88m (min). Overlaps. O/L 50

Track Circuit Type Identification: Single or Double Rail TC's, Joints and Impedance Bonds not shown for clarity. Non Electrified Line AC Electrified Line DC Electrified Line Description Symbol [NE] Symbol [AC] Symbol [DC] Direct Current [DC] feed [T] and 51 TB RB N / A 52 relay end [R], AA AB B = positive, N = negative. TN RN Direct Current [DC] with RBF TB RB 53 N / A 54 additional feed end relay. AA AB RNF TN RN + Represents the supplementary information that is required adjacent to the symbol on the plan. The requirement is explained in the description column.

Page 29 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

B.4 Track Circuit Type Identification (continued) Non Electrified Line AC Electrified Line DC Electrified Line Description Symbol [NE] Symbol [AC] Symbol [DC] Diode. 55 56 BX N / A AB NX Alstom; DC High Voltage Impulse T(+) R(+) 57 [HVI]. + = positive, - = negative. AA AB (HVI) T(-) R (-) Alternating Current [AC], 58 1 ## state frequency: 50, 75, 83 /3 F = Feed, R = Relay. AA FRAB (## Hz) (Phase stagger determined on site.)

Frequency Track Circuits, Reed. Example: jointless (LH end), intermediate simple loop, jointed (RH end). 59 ### state frequency code. TX = Transmitter, AA RX AB2 (f ###) AB1 (f ###) TX RX = Rec eiv er / Relay , RX LP = Low Power. Example show s Compound Loop. 60

AA RX AB2 (f ###) AB1 (f ###) TX RX TI21 Jointless. Example show s use of Track Tuning Units. 61 # state frequency Key as above. RX AB (f #) TX

TI21 Centre fed. Example: Track Tuning Unit (LH end), End Termination Unit (RH end). 62 # state frequency Key as above. AA RX AB2 (f #) TX AB1 (f #) RX ASTER Jointless. Type U or SF15 63 N / A 64 #### state frequency. AA RX AB (f ####) Key as above. FS2600 Jointed. 65 # state frequency AA TX AB (CH #) RX Key as above. Axle Counters, Track Sections + 66 to be show n and identified. E + Example show s heads fitted to one AA (X) AB (X) AC ( X ) end rail and EAK30 type Units E section bonded to common rail. + Treadles to be show n as + 67 attached to one rail or both and as show n in A.4.

Hot Axle Box Detectors to 68 be show n attached to each + rail.

Depression Bars, Electrical to be 69 70 show n adjacent to appropriate F + R TB rail, a) Independent (E), b) Working w ith track circuit (T). E T TN # Represents the track circuit frequency information that is required within the track circuit on the plan. The requirement is explained in the description column. + Represents equipment identities to be shown.

Page 30 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

B.4 (continued) Train Warning and Protection Systems (where required to be shown). Staff Protection Systems need not be shown. Trainstops need not be shown. Non Electrified Line AC Electrified Line DC Electrified Line Description Symbol [NE] Symbol [AC] Symbol [DC] AWS to be shown with N / A 71 72 effective direction.

TPWS system, showing arming & ++ ++ 73 trigger loops. + frequencies, ++ distances (or stated in a table), (123) OSS = overspeed sensor system, 123 (OSS) 123 (TSS) TSS = trainstop system. Arrow indicates effective direction. ARM (f+) TRIG(f+) ARM(f+)/TRIG(f+) DC Electrification (where required to be shown). Non Electrified Line AC Electrified Line DC Electrified Line Description Symbol [NE] Symbol [AC] Symbol [DC] DC Electrification Conductor N / A 74 75 Rail and Gaps.

Conductor Rail Protection, Single N / A 76 77 Board and Double Board.

B.5 Other Apparatus: no items need be shown.

B.6 Level Crossings: ; All the level crossing symbols to be shown as in A.7. On AC Electrified lines all raised metal structures, including metal gates and barriers, to be shown and earthed as shown below. B.7 Structures: Bonding (to the common rail or earth wire) shown as considered necessary. Non Electrified Line AC Electrified Line DC Electrified Line Description Symbol [NE] Symbol [AC] Symbol [DC] All types of signal or sign with 1m1038y 01 1m1038y 02 1m1038y 03 metal post. For signal, add ( EN101 ) ( EN101 ) ( EN101 ) signal number.

Metal Overbridge. 04 + 05 06 as A.7 as A.7 + as A.7.

Metal Underbridge or Swing 07 08 09 Bridge. as A.7 + as A.7 + as A.7.

Station Platform, Metal Awning 10 11 12 or Railings. as A.7 as A.7

Electric Traction Sub Stations and TP Huts, etc: shown as A.7, but with traction bonding. Non Electrified Line AC Electrified Line DC Electrified Line Description Symbol [NE] Symbol [AC] Symbol [DC] All Electrification Masts and N / A 13 + 14 N / A 15 Gantries. + post numbering to be identified.

All Metal Location supports, N / A 16 17 N / A 18 Ground Frame supports/ structures and other metal raised structures within 2m of line.

+ Represents the supplementary information that is required adjacent to the symbol on the plan. The requirement is explained in the description column.

Page 31 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

Appendix C Level Crossing Ground Plan Symbols

N Standard North Sign Buildings (balconies on signal boxes to be shown) Barrier Base and Pedestal Boom < 6.6m, Right Hand, Left Hand Hedging

CABLE ENTRY Typical Barrier Boom (3.6m shown) Typical REB on Base (standard image) .

CABLE Barrier Boom Light ENTRY Trees

Typical REB on Base (mirror image) Grassed Areas Assembled Unit (right hand)

Land Level

Road Centreline Stud Typical REB on Base with E E Walkway (mirror image) Assembled Unit (left hand) Underground Electricity

T T Apparatus Case Underground Telecommunications

Typical Barrier Base and Pedestal, Boom > 7.1m G G Underground Gas

Emergency Hut Typical Barrier Boom (7.1m shown) W W Underground Water OHL OHL (E) (E) Overhead Electricity W.C. Cubicle Barrier Side Arm OHL OHL (BT) (BT) Overhead Telecommunications Weldmesh Fencing (e.g. British Telecomm) OHL OHL (RC) (RC) Boundary Fence Assembled Unit (right hand) Return Conductor

S&T S&T Post and Rail Fence Signalling and Telecommunications

Guard Rail Assembled Unit (left hand) Buried Pipes or Ducts

Pedestrian Gate Troughing Route (right hand shown)

/////// /////// Cattle-cum-Trespass Guards Telecom Stump Box

Insulated Rail Joint Walls Turning Chamber/Manhole

Page 32 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

Crossing Illumination Light and Post Foundation and Baseplate for Flashing Road Signal Flashing Road Lights, Elevation

Standard Flashing Road Signal Post and Bracket

Miniature Stop Light Unit Flashing Road Lights, Profile

Standard Flashing Road Lights

Another Train Coming Unit

Road Lights with Narrow Head Flashing Red Pedestrian Light

Standard Extension Arm

Yodalarm Driver’s Crossing Light Units, New Style, Original Style Flashing Road Elevation of Assembled Lights Post Unit (3.2m post)

Driver’s Plunger Unit Example of Complete Assembly without Extension Arm 3000mm

. Barrier Pedestal Elevation (left hand shown)

Drop Light Column, 2 Head Assembled Driver’s Crossing Light Barrier Boom Light Elevation and Plunger Unit, with Crossing Illumination

Barrier Boom Elevation Drop Light Column, 3 Head Local Control Unit, with Telephone

Barrier Boom with Skirts Winch Light Column, 2 Head Public Telephone, Duplicate

Winch Light Column, 3 Head Assembled Unit with Skirts

SYMBOLS FOR ELEVATION DRAWING Camera, Angle of View Camera and Foundation, Outlet Left, Outlet Right

Page 33 of 34 Ref: NR/L2/SIG/11201 – Mod A17 Issue: 5 Date: 03/09/2011 Compliance date: 03/09/2011

Appendix D Obsolete Symbols

D.1 Obsolete Symbols: (included for reference purposes only and not for use on new plans)

Description Symbol Description Symbol 01 02 Light Signals, Slot. Banner Signal.

03 04 Illuminated Sign. Signals to be removed.

Obsolete meaning (see section A.4): 05 S 06 Points spring 2 way. Overlap TC Joint. Obsolete meaning (see section A.4): 07 Overlap TC joint, both directions 08 Overlap TC joint, On bi-directional line. With no TC on the right. 09 10 Impedance Bond. Trip Cock Test indicator.

Crank Handle Release 11 12 PH CH Road Crossing Signal (visual). Instrument. Road Crossing signal 13 14 Level Crossing road sign. (audible) 15 16 Cattle Guard. Telephone Sign.

17 18 Points fitted with switch heater. Right Away indicator "R". R or R

Permanent speed restriction 19 20 warning indicator, also, 30 Radio Channel. 60 3 Differential speed signing. 21 22 Line Speeds. 30 60 Turnout Speeds. 20

AWS, suppressed 23 24 S Apparatus Case. in direction shown. Light Signal, Single Unit 25 Light Signal, Single Unit 26 Searchlight, Three Aspect, Searchlight, Four Aspect. R:Y:G. R:Y:YY:G. Auxiliary Lights 28 27 Independent Position Light Signal, Used with single filament lamps. B) # Normally “ON” indicated by bar. B) shows 4 aspect searchlight: B) RR:WW (3 or 4 aperature) B) # explains aux. top R & bottom G. # Represents the supplementary information that is required elsewhere on the plan. The requirement is explained in the description column.

Page 34 of 34