No official Railway Board PDF has been traced for this entry yet. The text below was read from the document held in the library.
| Type | Commercial Circular |
|---|---|
| Topic | ticket-checking |
| Currency | Currency not verified |
Distant shall be provided at an adequate distance in rear of First Stop signal, Gate Stop signal and Intermediate Block Stop signal.
<!-- Slide number: 1 -->  WELCOME <!-- Slide number: 2 --> Chapter-III * SIGNALS  MDZTI / DWR <!-- Slide number: 3 -->   SIGNALS  <!-- Slide number: 4 --> SIGNALS Signals are communications used to convey a definite meaning. Example:Traffic signals on the road. Sign language,flags, … In Railways signals are used to give information such as Gate is closed Block section is clear Permission to enter into the station Permission to leave the station, etc. <!-- Slide number: 5 --> SIGNALS In Railways signals are used to control the movement of trains. Signals are of 4 kinds. They are: 1. Fixed signals 2. Hand signals 3. Detonators 4. Warning Signals <!-- Slide number: 6 --> FIXED SIGNAL GR 1.02 (22) “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 <!-- Slide number: 7 --> FIXED SIGNALS       Colour Light Disc Semaphore Arm <!-- Slide number: 8 --> Hereafter, we are going to discuss the FIXED SIGNALS with specific reference to Multiple Aspect Colour Light Signals. <!-- Slide number: 9 --> Fixed Signal – General description The location of the signal is fixed and clearly visible to Loco Pilots . Placed immediately to the left of or above the line to which it refers. Under special instructions, may be placed to the right of the line also. <!-- Slide number: 10 -->   Above the line Left of the line  Right hand side of the line Under Special Instructions <!-- Slide number: 11 --> May be Semaphore arm or Colour light. The signals used by night shall also be used by day in tunnels or during thick or foggy weather. The most restrictive aspect of a signal is “ON” position. Any prescribed aspect other than “ON” aspect is “OFF” position. <!-- Slide number: 12 --> ASPECT OF A SIGNAL ‘Aspect’ means the appearance of the signal as seen by the Loco Pilot of an approaching train, which is colour of light  However, the aspects are called out as Stop, Caution, Attention and Proceed. INDICATION OF A SIGNAL ‘Indication’ means the information or meaning, conveyed by the aspect of the signal. <!-- Slide number: 13 --> A colour light signal shall be multiple aspect. (i.e. 3 or 4 aspects ) 4-Aspects: Danger, Caution, Attention & Proceed   3-Aspects: Danger, Caution & Proceed Fixed signals shall be brought in to use only after they have been passed by CRS as sufficient for safe working of trains. <!-- Slide number: 14 --> ON ASPECT A fixed signal is said to be at ‘ON’ when it shows its most restrictive aspect. OFF ASPECT A fixed signal is said to be at ‘OFF’ when it shows any prescribed aspect other than ‘ON’ aspect. <!-- Slide number: 15 --> IN REAR OF A SIGNAL The Loco Pilot of a train is said to be in rear of the signal, as long as he has not passed the signal. any position on that portion of the line leading up to the signal, in the direction to which the signal refers to the line. <!-- Slide number: 16 --> IN REAR/IN ADVANCE OF A SIGNAL   IN ADVANCE OF A SIGNAL IN REAR OF A SIGNAL THE PORTION OF LINE BEYOND THE SIGNAL, THE LP OF AN APPROACHING TRAIN IS SAID TO BE IN ADVANCE OF THE SIGNAL, AFTER HE HAS PASSED THE SIGNAL THE PORTION OF THE LINE LEADING UPTO THE SIGNAL THE LP OF A TRAIN APPROA
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