DMRG Rules 16Chapter III · Signals and Control

Section 16 · Description of signals

(1)

Cab signals-(i) Train movements on running tracks shall normally be governed by the Automatic Train Protection System which displays to the Train Operator in the operating console-

(a)

actual speed of the train ;

(b)

the maximum permitted speed at each point of travel;

(c)

the distance the train is currently authorised to travel (where provided);

(d)

system alarms ; and

(e)

messages.

(ii)If the target speed indication and the target distance indications, where provided, are greater than zero, the indication is referred to as "PROCEED" indication.

(iii)If either of these indication is "O", the indication is referred to as "STOP" indication.

(iv)The Train Operator is authorised to drive his train up to the indicated speed as far as authority has been given for such purpose.

(2)

Fixed signals-(i) On main lines fixed signals are color light signals capable of showing a "Red", "Violet" or "Green" aspect.

(ii)

A "Red" aspect indicates that a train must be bought to STOP short of the signal.

(iii)

A "Violet" aspect indicates that the route is set and locked but not fully clear. A train operating under cab signals may proceed under the authority of the cab signals but a train operating on the sole authority of line side signals must stop.

(iv)

A "Green" aspect indicates that the route is cleared to the next fixed signal and the train may proceed as far as the next fixed signal.

(v)

When a fixed signal is not in use, the aspect shall be covered and the cover shall display two crossed white bars on a black background, the bars being not less than 30 cms long and 10 cms wide.

(3)

Depot signals-(i) In depots, fixed signals may be both color light and position light type and main line type fixed signals shall comply with the manner as specified in sub-rule (2), and

(ii)

In position light type signalling two white lights displayed horizontally shall mean that a train shall stop.

(iii)

Two white lights displayed at an angle shall mean that a train may proceed in restricted manual control as far as the line is clear and the Train Operator must keep a good look out for an obstruction.

(4)

Hand signals-(i) Hand signals shall normally be used only for the shunting of work trains in depot, or at the site of work, or in extreme emergency.

(ii)

Any light other than 'Green' or any object waved violently shall be interpreted as a stop signal.

(iii)

"STOP" shall be indicated by-

(a)

a Red lamp ;

(b)

raising of both arms above the head ;

(c)

waving a while light rapidly from side to side ;

(d)

a Red flag.

(iv)

"PROCEED" shall be indicated by a Green lamp held steadily.

(v)

Hand signals for shunting and train movements shall have the following configurations-

	Aspect	Indication
(a)	A Green lamp moved slowly up and down	Move away from the signal
(b)	A Green lamp waved from side to side across the body	Move towards the signal
(c)	A Red light	Stop

(vi)

When during cautions driving or shunting the speed of a train is to be reduced, the hand signal for movement shall be given at a slower and slower rate and when a stop is required a STOP signal shall be given.

(vii)

Each Station Control Room shall have at least one hand lamp capable of displaying Red, Green and White aspects readily accessible and in working order and each Station Controller shall be conversant with its location and its proper use.

(viii)

Each metro railway employee involved in the shunting of work trains, the operation of work trains at a maintenance site and the operation of work trains within an Engineer's Possession, shall carry a hand lamp capable of displaying Red, Green and White aspects in working order and shall be conversant with its proper use.

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