PRO SM STUDY MATERIAL GRS & BWM NOTES FOR PRO SM s 1 INDEX S.No PAPER I- GRS Page No 1. Safety rules 01 2. Rules applying to railway servants generally 07 3. Classification of stations 08 4. System of working 10 5. Essentials of Absolute Block System 10 6. Signals 11 7. Hand signals 24 8. Detonating Signal 30 9. Warning signal 32 10. Boards 34 11. Indicators 41 12. Isolation 48 13. Interlocking 50 14. Points, Speed over facing points 53 15. Setting of points against occupied line 57 16. S&T/NM, Disconnection/ Reconnection 58 17. Conditions for granting Line Clear 62 18. Conditions for taking OFF signals 63 19. Putting Back of Signals 64 20. Complete arrival 65 21. Signal failure 66 22. Control and working of Stations 77 Working of Trains Generally 23. Standard Time 81 24. Working Time Table 81 25. Maximum Permissible Speed, Minimum permissible Running Time 82 26. Booked Speed 83 27. Speedometer 83 28. Caution order 84 29. Head Light/ Marker Light, Engine Pushing 91 30. Flasher Light, Side Lights 92 31. Tail Board/ Tail Lamp 93 32. Goods Train without BV /Guard 94 33. Hot axle 96 34. Train held up at FSS 97 35. Whistle codes 97 36. Duties of SM when Fouling Mark is not clear 99 37. Material Train 99 38. Track Maintenance Machine 101 39. Shunting 104 40. Securing of Vehicles 108 41. Marshalling order 111 42. Automatic Block system 115 43. Works of Short Duration 141 2 44. Works of Long Duration 143 45. Line Block 144 46. Patrolling of lines 146 47. Causeways 149 48. Level Crossings 150 49. Electrified Section 153 50. Non interlocked working 160 PAPER II - BWM 1. Salient features of Absolute Block system, Means of communication 165 2. Types of Block Instruments, BCC 166 3. Train Signal Register 167 4. Private Number Book 169 5. Precedence of Trains, Description of Bell Codes 170 6. Various Authorities to Proceed in absolute Block System 178 7. T/369(3b), T/511 179 8. Push Button Type Tokenless Block Instrument 182 9. FM Handle Type Tokenless Block Instrument 190 10. SGE Lock and Block Instrument 197 11. Follow up action taken during failure of Block Instrument 206 12. Paper Line Clear Ticket 210 13. Sending relief engine into Obstructed Block section 214 14. TIC on Single Line 217 15. TIC on double line 220 16. Temporary Single line working on Double line 222 17. Authority to proceed without Line Clear 225 18. Train Divided 228 19. Train Parting 230 20. Working of Trolley 232 21. Working of Lorry 238 22. Working of OHE Ladder Trolley 238 23. Working of Rail Dolley 239 24. Motor Trolley 240 25. Panel Interlocking 247 26. Route Relay interlocking 251 27. Electronic Interlocking & VDU working 252 28. Emergency calling on route release 254 29. Block proving axle counter 255 30. Data Logger 257 31. Accidents 258 32. Accident Enquiries 270 33. Duties of SM during Accident 277 34. Miscellaneous 283 3 SAFETY RULES Safety Rules are framed for Safe and proper working of Trains. All Railway Servants shall obey the Safety Rules a) By the terms of employment and b) Under Section 175 of ‘ The Railways Act 1989 ’ The safety rules are, 1. General Rules 2. Subsidiary Rules 3. Special Instructions 4. Approved Special Instructions 5. Station Working Rules 6. Miscellaneous Instructions A. GENERAL RULES (GRS) 1. General Rules are framed by the Railway Board on behalf of the Government of India. 2. It was first issued in 1907 and revised in 1929 &1976. 3. It contains basic principles for safe Train operations. 4. It is applicable for all Zonal Railways and it shall not be violated. 5. They are printed in BOLD letters & Rule Numbers to the Left of the dot indicates Chapter Number, Right of the dot indicates Rule Number. (Ex: GR 3.38, 3 refers Chapter No, 38 refers Rule No) 6. There are 344 Rules in 18 Chapters. 7. The Chapters are, 1. Preliminary 10. The Following Train System 2. Rules applying to Railway Servants generally. 11. The Pilot Guard System 3. Signals 12. The Train Staff and Ticket System 4. Working of Trains generally 13. The One Train Only System 5. Control and working of Stations 14. Block working 6. Accidents and Unusual Occurrences 15. Permanent Way and Works 7. System of Working 16. Level Crossings 8. The Absolute Block System 17. Working of Trains on Electrified Sections 9. The Automatic Block System 18. Miscellaneous 8. Corrections (Amendments) to this are issued by the Railway Board. B. SUBSIDIARY RULES (SR) 1. Subsidiary Rules are issued by Authorised Officer. The Principal Chief Operations Manager (PCOM) is the Authorised Officer for Southern Railway. 2. It explains or amplifies the General Rules and it shall not violate any GR. 3. It is applicable to a particular Zonal Railway. 4 4. It is printed in smaller letters below the GR. Rule numbers are same that of GR with a prefix SR. Ex: SR 14.25 5. Correction to SR shall be given only by the Authorised Officer. C. SPECIAL INSTRUCTIONS 1. Special Instructions are, - Issued by the Authorised Officer (PCOM) - Issued from time to time - For particular cases or special circumstances. 2. They are equally important as GR & SR. 3. It may be applicable for a Train, Signal, Station, Section, Division or Zone. 4. Example: Special Instructions for Example 1. Zone Accident Manual, Block Working Manual 2. Division Working Time Table 3. Section Instructions for Twin Single Line working 4. Station Shunting in the face of an approaching train 5. Train Running of Superfast Trains 6. Signal Provision of Signals on right hand side D. APPROVED SPECIAL INSTRUCTIONS 1. They are Special Instructions prescribed or approved by the Commissioner of Railway Safety (CRS). 2. Examples: - Exemption of fixed signals at Stations. - Reduction of Adequate Distance etc. COMMISSIONER OF RAILWAY SAFETY Appointed under Section 5 of the Railways Act, 1989. Chief Commissioner of Railway Safety(CCRS) is assisted by 9 CRS‟ The Head Quarters of CCRS is at LUCKNOW. CRS Southern Circle (SR& SWR), is headquartered at Bengaluru (SBC). CRS functions under the Ministry of Civil Aviation. 5 E. STATION WORKING RULES (SWR) 1. SWR contains rules for working of Trains at a Station and between stations. 2. It shall be read in conjunction with GR&SR and shall not violate them. 3. Each Station shall be provided with a SWR applicable to that station. A copy shall be available in Cabins and Level Crossing Gates concerned. 4. Railway Board has issued a standard format for preparation of SWR. 5. It is prepared and issued by the Office of the DRM. 6. Each page is signed by Sr.DOM/DOM, Sr. DSTE/DSTE. 7. In case of opening / remodelling a Station it is also signed by the DSTE in charge of execution of the work. 8. In Electrified Sections, Instructions pertaining to working of 25KV Traction shall be provided as Appendix G of SWR. It is signed by Sr.DOM/ DOM and Sr.DEE/DEE/TRD. 9. SWR of Special class Stations shall have the approval of CRS. CONTENTS: 10. There are 12 Para‟s and 7 Appendices. They are 1) Station Working Rule Diagram, Permanent Way Layout Diagram 2) Description of the Station 3) System and Means of working. 4) System of signalling and interlocking. 5) Telecommunication. 6) System of Train working 7) Blocking of lines. 8) Shunting. 9) Abnormal working. 10) Visibility Test Object. 11) Essential equipments. 12) Names of Fog signalmen. LIST OF APPENDICES: A. Working of Level Crossing Gates B. System of Signalling, Interlocking And Communication arrangements C. Anti-Collision Device( Raksha Kavach) D. Duties of Staff in each shift E. List of Essential Equipments F. Rules for working of Halts, IBH, IBSS & Outlying Sidings G. Rules for working of Trains in Electrified Sections 6 Corrections / Review 11. Maximum of 5 corrections are permitted to SWR. If 6 th correction is required, a fresh SWR shall be issued. 12. Index for correction memo shall be maintained. 13. Corrections shall be in the form of Page replacements. 14. SWR shall be reviewed once in five years, in the review brings any changes it shall be issued afresh. SM’s Responsibility Incharge SM shall ensure 15. The SWR conforms the conditions at site. 16. Variations if any shall be reported to Sr.DOM/DOM for necessary corrections. 17. All Operating Staff at a Station shall understand and follows the SWR. 18. Before taking up independent duty they shall declare and sign in Declaration Register kept for Station Masters & Other than Station Masters and Operating staff other than Station Masters shall declare and sign with details of competency certificate in respective declaration registers and SM incharge shall certify the same. 19. Fresh declaration shall be obtained, when i) Any staff newly joins the Station, ii) Any staff resumes duty after an absence of 15 consecutive days or more, iii) Any changes in the SWR. F. MISCELLENEOUS INSTRUCTIONS Instructions that may be issued in the form of Gazette, Circulars, JPOs, SOBs, GOBs from Railway Board, Zones, Division etc. Examples, S. No Circular/ Order Issued by Applicable to 1 Headquarters Safety circular PCSO/ PCOM Zonal Railway 2 Divisional safety Circular Sr.DOM/ Sr.DSO Only for Division 3 Operating circular Sr.DOM/DOM Only for Division 4 Joint procedural Order (JPO) More than one Department Officer at Divisional/ Zonal level. Zone/ Division 5 Standing Order Book (SOB) Zonal/ divisional Officer/ SS at Station level/ any supervisory official at their level. Zone/ Division/ Station/ Depot 6 General Order Book (GOB) Supervisory official Particular Depot 7 Railway Gazette Railway Board Indian Railways 7 RULES APPLYING TO RAILWAY SERVANTS GENERALLY 1. RULES: GRS Book is supplied (either as hard copy or electronic copy) to all the Railway Staff connected with it. Such Staff shall, 1) Keep it updated with all corrections. 2) Keep it while on duty. 3) Produce the same when demanded by Superiors. 4) Be conversant with these Rules after passing prescribed examination. 5) Obey all the Rules and Special Instructions. 6) Report promptly to the Superiors wherever the Rules are breached. 2. DUTY: [GR/SR 2.07 TO GR/SR 2.09] Every Railway Servant shall 1) Attend to his duty at such time and places as fixed by Railway Administration. 2) Not absent himself from duty. 3) Not exchange duty with other Railway Servants. 4) Not leave from duty unless properly relieved. 5) Not be in intoxicated state by consuming Alcohol, Sedative Drugs etc. while on duty. 6) Not consume Alcohol, Sedative Drugs, etc. within 8 hours before commencement of duty and while on duty, if he/she is connected with Train Working. 3. CONDUCT: [GR/SR 2.10] A Railway Servant shall 1) Wear prescribed Uniform and Badge. 2) Be neat and tidy. 3) Obey the lawful orders of superiors. 4) Not expect/accept illegal gratification. 5) Give assistance / correct information to Public. 6) Tell his/her Name and Designation, when asked 4. DUTY FOR SECURING SAFETY: [GR/SR 2.11] Every Railway Servant shall 1) Report promptly to Superior, if he notices any occurrence affecting Safety. 2) Take all possible steps to prevent an Accident. 3) Not allow Train Movement into a Block Section, if Wind Velocity exceeds 41 Knots OR 72 Kmph as shown in the Anemometer , wherever provided. 4) Render all possible assistance in case of an Accident. 8 CLASSIFICATION OF STATIONS (G&SR 1.03) Station means, any place on a line of Railway, At which traffic is dealt with or At which an authority to proceed is given under the system of working. Stations are broadly classified into Block stations and Non-Block Stations. BLOCK STATIONS Block Stations are those, At which the LP must obtain an authority to proceed, under the system of working, to enter the Block Section with his Train. Block Stations are further classified as, 1. Class A Stations For granting Line Clear, line shall be clear for atleast 400 metres beyond the HOME Signal or upto the Starter. Station Section is not available. 2. Class B Stations For granting Line Clear, the line shall be clear not only upto the First Stop Signal but also for an adequate distance of NLT 180m. At the time of granting line clear, reception line need not be clear. Station Section is available. 3. Class C Stations For granting Line Clear, the whole of the preceding Train has passed complete atleast 400 metres beyond the HOME Signal and is continuing its journey. There is no Station section. It splits a lengthy Block section into two. Class C stations are classified into Intermediate Block Hut (IBH) and Intermediate Block Post (IBP), IBP is remotely controlled by the Station in rear. NON BLOCK STATIONS They are stopping places between two Block Stations and do not form boundary of any Block Section and classified as Class D Stations. They are further divided into, - Flag/ CNC Station: A Railway servant (Clerk in Charge) is available for issuing Tickets. - Halt Station: A Private Agent shall be available for issuing Tickets. 9 SPECIAL CLASS STATIONS Any station which cannot be worked under A, B, C or D conditions are termed as Special Class Stations. SWR of Special Class Stations shall have the approval of CRS. MINIMUM EQUIPMENT OF FIXED SIGNALS – MACL( GR 3.27) CLASSIFICATION MINIMUM EQUIPMENT OF SIGNALS SINGLE LINE DOUBLE LINE CLASS B DISTANT, HOME & STARTER* DISTANT, HOME & STARTER CLASS C DISTANT, HOME DISTANT, HOME Note: i) Apart from above Signals, any other additional Signals can also be provided at a Station as per the requirement. ii) *Where the speed of the Train doesn‟t exceed 50 KMPH through the Station on Single Line, Starter may be dispensed with under Approved Special Instructions. STATION SECTION 1. There is no Station Section available in Class A and C Stations. 2. Station section is available normally in Class B Station where it is demarcated as below, Section At a Multiple Aspect Station Single Line Between Advanced Starters Or Between Shunting Limit Boards - If there is no Advanced Starter Or Between O uter M ost F acing P oint s - If there is no Advanced Starter or SLB Double Line Between OMFP and LSS or Between BSLB and LSS in either direction. STATION LIMITS Station Limit is The portion of a Railway between Outermost Signals or as prescribed by Special Instructions. Under the control of Station Master. 10 SYSTEM OF WORKING 1. System of working means the system adopted for the time being for the working of Trains on any portion of a Railway. 2. The following factors are considered for determining the system of working; Safety, Speed, Traffic density, Geographical conditions, Technology upgradations. 3. In Indian Railways the following systems of working are in force. 1) The One Train only system 2) The Following Trains system 3) The Train-Staff and Ticket system Works on the Principle of Time Interval 4) The Pilot Guard system 5) The Absolute Block system 6) The Automatic Block system Works on the Principle of Space Interval 4. In Southern Railway the following systems of working are in force 1. The Absolute block system 2. The Automatic block system For following any other System of working other than the above two, Special Instructions are required. ESSENTIALS OF THE ABSOLUTE BLOCK SYSTEM 1. Where trains are worked on the Absolute block System, a) No train shall be allowed to leave a block station unless Line Clear has been received from the block station in advance, and b) On double lines such Line Clear shall not be given unless the line is clear, not only upto the First Stop signal at the block station at which such Line Clear is given but also for an adequate distance beyond it, c) On single lines such Line Clear shall not be given unless the line is clear of trains running in the same direction, not only upto the First Stop signal at the block station at which such Line Clear is given, but also for an adequate distance beyond it, and is clear of trains running in the direction towards the block station to which such Line Clear is given. 2. Unless otherwise directed by approved special instructions, the adequate distance referred to in clauses b) and c) of sub-rule (1) shall not be less than- a. 400 metres in case of two-aspect lower quadrant signalling or two-aspect colour light signalling and b. 180 metres in case of multiple-aspect signalling or modified lower quadrant signalling. 11 SIGNALS Signals are used to control the movement of Trains. Signals are of four kinds, 1. Fixed Signals 2. Hand Signals 3. Detonating Signals and 4. Warning Signals SIGNAL CLASSIFICATION FIXED SIGNALS Definition: Fixed Signal means a Signal of fixed location, indicating a condition affecting the movement of a train and includes, A semaphore arm or Disc or Fixed light for use by day and fixed light for use by night. They shall be placed on the Left Hand Side of the Track or above the line. Under SPECIAL INSTRUCTIONS they may be provided on the Right Hand side. All Stations shall be provided with Fixed Signals except at Stations, i) Worked under The One Train Only System. ii) As exempted by CRS. SIGNALS FIXED SIGNALS PERMISSIVE SIGNALS 1.DISTANT 2.INNER DISTATNT STOP SIGNALS RECEPTION 1.HOME 2 ROUTING DESPATCH 1. STARTER 2. INTER STARTER 3.ADVANCED STARTER SUBSIDIARY SIGNALS 1.CALLING ON 2. SHUNT OTHER SIGNALS 1.GSS 2. IBSS REPEATING SIGNAL HAND SIGNALS 1. STOP 2. PROCEED 3. PROCCED WITH CAUTION 4. STARTING 5. ALL READY 6. ALL RIGHT 7.COMPLETE ARRIVAL 8. HOT AXLE 9. PARTING 10. MOVE AWAY 11. MOVE TOWRDS 12.COUPLING DETONATING SIGNALS DETONATORS ( AUDIBLE ) FLARE SIGNALS WARNING & FUSEE 12 Before brought into use all fixed Signals shall be passed by CRS. Fixed Signals may be Two Aspect or Multiple Aspect. i) TWO ASPECT SIGNALLING : it is a Signalling arrangement in which Signal displays any one of the two aspects at a time ii) MULTIPLE ASPECT SIGNALLING : It is a Signalling arrangement in which Signal displays any one of the Three or More aspects at a time . Every Signal shall be Pre- warned by the aspect of the previous Signal(s). Colour Light Signals a) It may have two or three or four aspects. b) Marker Plates or Marker Lights may be provided below the Signals. Aspects displayed by the Fixed Colour Light Signal shall be same by Day and Night. ASPECT & INDICATION OF A SIGNAL i) ASPECT : Means appearance of the Signal as seen by the LP of an approaching Train. (i.e. colour of the light). It shall be any one of the following – Stop (Red), Caution (Yellow), Attention ( double Yellow) and Proceed (Green) ii) INDICATION : Means the information/ meaning conveyed by the Aspect of the Signal. IN REAR/ IN ADVANCE OF A SIGNAL i) In Rear of a Signal : it is the portion of the line leading upto the Signal. The LP of the Train approaching the signal is said to be in rear of a signal till he passes the signal. ii) In Advance of a Signal : it is the portion of the line beyond the Signal. The LP of the Train is said to be in Advance of a signal after he passes the Signal. This portion is protected by the Signal if it is a Stop Signal. ON & OFF Aspects i) ON aspect means the most restrictive aspect of a Signal. ii) OFF aspect means any prescribed aspect other than the most restrictive aspect of that signal. NORMAL ASPECT OF SIGNALS 1) Except under Approved Special Instructions, Fixed Signals shall always show their most restrictive aspect in their normal position. 2) Normal Aspect of an Automatic Stop Signal is Proceed . However, if next Signal is a Manual Stop Signal, Normal Aspect may be Caution or Attention 13 ADEQUATE DISTANCE 1. It is the Distance sufficient to ensure safety. 2. It shall be ensured in the following occasions, A. Before granting Line Clear [Block Overlap] B. Before taking OFF HOME Signal [Signal Overlap] 1. Adequate distance ensured before granting Line Clear. 2. In Class B stations with Multiple Aspect signalling , it shall be not less than 180 metres from FSS. 3. It may be reduced by CRS. 1. Adequate distance ensured before taking OFF Home Signal. 2. In Class B stations with Multiple Aspect signalling, it shall be NLT 120 metres, calculated from The Trailing points in Single Line From Starter in Double Line. 3. It may be reduced by CRS. 14 MULTIPLE ASPECT COLOUR LIGHT SIGNALS DISTANT (GR 3.07) 1. It is a Permissive Signal and identified with P Marker. 2. It is provided at an adequate distance of not less than 1000metres in rear of FSS (HOME) or Intermediate Block Stop Signal (IBSS) or Gate Stop Signal (GSS). 3. It pre-warns the aspect of FSS or IBSS or GSS. 4. Aspects and Indications of Distant signal pre-warning a Home Signal:- ASPECT INDICATION A. Caution (ON) [Yellow] Proceed and be prepared to stop at the next Stop Signal B. Attention (OFF) [Double Yellow] Proceed and be prepared to pass the next stop signal at restricted speed as prescribed by Special Instructions and (i) Be prepared to stop at main line starter or (ii) Be prepared to stop at loop line starter or (iii) Pass run through on the loop line. C. Proceed (OFF) [Green] Block Section ahead is clear, pass run through via Main line. 5. Wherever Distant is provided Passenger Warning Board can be dispensed with. 15 6. COMBINATION OF SIGNALS: Under Approved Special Instructions a colour light Distant may be combined with Gate Stop Signal or IBSS or LSS. Then the normal aspect of the Signal is Stop Examples LSS CUM DISTANT: a) Distant signal is combined with LSS of the Station in rear. b) It is a Stop signal and P marker plate shall be dispensed with. c) It works as the LSS till line clear is obtained. d) As long as Line Clear not obtained it shall work as LSS. e) Once Line Clear obtained works as Distant signal for the stop signal in advance. GATE CUM DISTANT: a) Distant signal is combined with Gate Stop Signal. b) It is a Stop signal and P Marker shall be dispensed with. c) G Marker may be provided. d) It works as the Gate Stop Signal till the LC gate is open. e) Once the LC Gate is closed, it works as Distant signal for the stop signal in advance. INNER DISTANT 1. Where required more than one Distant may be provided in rear of FSS/IBSS/GSS. 2. In such cases the Distant located as outermost Signal at an adequate distance of 2000m in rear of FSS/IBSS/GSS. 3. It will exhibit attention and proceed aspects only. 4. The Signal in advance of Distant is called Inner Distant and it will show Caution, Attention and proceed aspects and it is identified by P Marker. 5. When Inner Distant shows Proceed Train is run through via Main line. 6. Where Inner Distant provided Goods Warning Board may be dispensed with. 7. ASPECTS AND INDICATION - INNER DISTANT AREA Indication to LP Distant Inner Distant Home Starter Advanced Starter Stop at Home Double Yellow Yellow Red Red Red Stop at main line Starter Green Double Yellow Yellow Red Red Stop at Loop line starter or Run through on Loop line Double Yellow Double Yellow Yellow with Route Indicator Red or Yellow Red or Green Run through on Main line Green Green Green Green Green 16 RECEPTION STOP SIGNALS ( GR 3.09) HOME SIGNAL 1. It is the First Stop Signal (FSS) controlling the movement of Trains approaching a Station. 2. It is provided outside all Points and Connections at a distance of a) Single Line: NLT 300m from O uter M ost F acing P oints(OMFP) or NLT 180m from Opposing Advanced Starter or Shunting Limit Board. b) Double Line: NLT 180m in rear of OMFP or Block Section Limit Board. 3. It is interlocked with Points. When taken OFF, a) It ensures correct setting and locking of Facing & Trailing Points over the line of reception. b) It indicates the road of reception. 4. It is provided with suitable Route Indicator, Calling ON signal and Signal Post Telephone (SPT). 5. Adequate Distance for granting Line Clear shall be from the Home signal. 6. Aspects and Indications: ASPECT INDICATION A. Stop (ON) [Red] Stop dead. B. Caution (OFF) [Yellow] Proceed with Caution and be prepared to stop at next stop Signal. C. Proceed (OFF) [Green] Proceed. 17 ROUTING SIGNAL 1. It is a Reception Stop Signal. 2. It is provided when Home Signal due to its inconvenient position is unable to indicate the road of reception. 3. It indicates the LP, which of the two or more diverging routes is set for him. DEPARTURE STOP SIGNALS( GR 3.10) STARTER 1. It is a Departure Stop Signal, controlling the movement of Train leaving a Station. 2. Where Advanced Starter is provided, Starter protects the first facing points or fouling mark. 3. When a Train leaving a Station is guided by only one starting Signal, it is the last stop Signal of the station and it is called Starter. 4. Where Starter is the LSS, a. It controls the entry of trains into the next block section. b. With Approved special instructions it may be provided inside the connections also. 5. Aspects and Indications: a) Loop line - Stop and Caution b) Main line - Stop, Caution and Proceed MAIN LINE STARTER LOOP LINE STARTER 18 INTERMEDIATE-STARTER 1. It is a Departure Stop Signal. 2. It may be provided in between Starter and Advanced Starter to protect any converging/ diverging points. ADVANCED STARTER 1. It is a Departure Stop Signal. 2. When a Train leaving a Station is guided by more than one starting Signal, the outer most starting Signal is the Last stop Signal and is called Advanced Starter. 3. Advanced Starter shall be interlocked with Block instrument/ Track Circuit / Axle Counters. 4. It controls the entry of a Train into the next Block Section. 5. It is normally placed outside all Connections and is provided at a distance of, i) On Single lines: NLT 120metres from Outer most Points or 180 metres from Opposing FSS. ii) On Double lines: NLT 120metres from Starter. 6. It may be interlocked with/ protecting any Points. SUBSIDIARY SIGNALS CALLING - ON SIGNAL( GR 3.13) 1. It is a Subsidiary Signal and identified by C Marker. 2. It shall be provided below a Reception Stop Signal . Under Approved Special Instructions it may be provided below any stop signal except LSS. 3. It shall be taken off during , i) Failure of the Stop signal below which it is provided ii) Reception of a Train on an obstructed line. 4. It shall be taken OFF only when the Train has come to a Stop at the foot of the Signal. 19 5. Aspects and Indications: Aspects Indications ON No light LP shall obey the aspect of the Stop Signal. OFF Miniature Yellow light. (proceed slow) Stop and draw ahead with caution and be prepared to stop short of any obstruction SHUNT SIGNAL( GR 3.14) 1. It is a Subsidiary Signal. 2. It is used to control Shunt movements. 3. Position light Type shunt signal is provided in colour light territory. 4. It may be placed on a Post by itself or below any Stop Signal except FSS. 5. More than one shunt Signal may be placed on the same post. If placed so, the top most Signal refers to the left extreme line and so on. 6. A White Arrow Indicates, for which line the Shunt Signal is provided. 7. Aspects and Indications: Aspect Indication On a Separate Post ON Horizontal Position of Two White Lights Stop dead. OFF Inclined or Oblique position of Two white Lights Proceed with Caution for Shunting. Below a Stop Signal ON No Light Obey the Aspect of Stop signal OFF Inclined or Oblique position of Two white Lights Proceed with Caution for Shunting.