Section 2 in The Delhi Metro Airport Express Line, General Rules, 2010
2. Definitions.
(1)In these rules, unless the context otherwise requires,-(a)"accident" means any occurrence which causes or has the potential to cause death or injury to staff, passenger or other person or cause damage to the property of the Delhi Metro Airport Express Line, passengers or other persons;(b)"Act" means the Metro Railways (Operation and Maintenance) Act, 2002, (60 of 2002);(c)"adequate distance" means the distance sufficient to ensure safety;(d)"Automatic Fare Collection" system means automatic system for collection of fares and issuing of tickets;(e)"approach lighting" means an arrangement in which the lighting of signals is controlled automatically by the approach of a train;(f)"approved special instructions" means special instructions approved by the Commissioner;(g)"Authorized Officer" means an officer of the Delhi Metro Airport Express Line administration who is duly empowered by general or special order of the Delhi Metro Airport Express Line administration, either by name or by virtue of his office, to issue instructions with the prior approval of the Authorized Officer of the Delhi Metro Railway Administration, as defined in clause (vi) of sub-rule (1) of rule 2 of the Delhi Metro Railway General Rules, 2002 ;(h)"authorised employee" means a Delhi Metro Airport Express Line employee to whom a competency certificate has been issued and who is duly empowered by general or special order of the Delhi Metro Airport Express Line administration, either by name or by virtue of his office, to work or do specific job or jobs assigned;(i)"Automatic Mode" means the mode of operation of train under Automatic Train Operation where train is driven automatically including control of acceleration, coasting, braking and stopping of trains;(j)"Authority to Proceed" means the authority given to the train operator of a train, under the system of working, to enter the block section with his train;(k)"Automatic Train Operation" means a sub-system of Continuous Automatic Train Control system, which automatically controls acceleration, coasting, braking and stopping of trains;(l)"Automatic Train Protection" means a sub-system of Continuous Automatic Train Control System which maintains safe train operation, including train direction, train separation, interlocking and speed enforcement;(m)"Automatic Train Supervision" means a sub-system of Continuous Automatic Train Control system which automatically monitors the entire system and directs train running so as to provide scheduled service under normal circumstances;(n)"Axle Counter" means an electrical device which, when provided at two given points on the track, proves, by counting axles in and counting axles out, whether the section of the track between the said two points is clear or occupied;(o)"Baggage Handling system" means a mechanized train borne and station-based system meant for transfer of passenger's baggage between stations and to the Airport terminal;(p)"berth" means length of track nominated to be occupied by a train adjacent to a platform or in the Depot;(q)"block section" means the portion of the running line between block stations as specified by special instruction on to which no running train may enter, until permission to approach has been received from the block station at the other end of the block section;(r)"block station" means a station at which permission to approach is received or granted;(s)"Blue Light Station" means a location indicated by a blue light provided at the end of a platform, cross-passage in tunnels or other specified locations where emergency service or authorized person can communicate with the Operation Control Centre and disconnect traction power of a specified section to stop a train;(t)"cab signal" means visual indication displayed as speed limit and target distance on the train operator's console granting him the authority to proceed under Automatic Train Operation, or Coded Manual Mode of driving;(u)"calendar day" means the period from midnight to midnight;(v)"Car Shed" or "Service Depot' means an area where Delhi Metro Airport Express Line trains and coaches are berthed either for repair or for any other attention including stabling;(w)"caution order" means an instruction given to the Train Operator to observe special precautions including speed reduction at notified locations;(x)"certificate of competency" means the certificate issued to the Delhi Metro Airport Express Line employee after he has been examined for his knowledge of rules, regulations, procedures and manuals relevant to his duties and found fit;(y)"Coded Manual Mode" means the mode of operation of train under Continuous Automatic Train Control System where train is driven manually but remains subject to maximum speed determined by Automatic Train Protection codes;(z)"Commissioner" means the Commissioner of Metro Railway Safety appointed under section 7 of the Act;(aa)"Continuous Automatic Train Control system" means an automatic system of controlling and monitoring train movements continuously by means of sub-systems, namely, Automatic Train Protection System, Automatic Train Operation system and Automatic Train Supervision System;(bb)"connections", when used with reference to a running line, means the arrangements used to connect such line with other lines or to cross it;(cc)"Chief Controller" means the Delhi Metro Airport Express Line official in overall charge of Operations Control Centre functions;(dd)"cut out mode" means the following mode of operation of trains without Automatic Train Protection system, namely:-(i)"Low Speed Cut out Mode" means the default mode of operation in Automatic Train Control Cut-out condition where the propulsion system would cut out traction of the train above twenty-five kilometer per hour and the train operator shall manually drive the train in accordance with the line-side signals and monitor and limit the speed of the train if it exceeds twenty-five kilometer per hour speed, by service brake application;(ii)"High Speed Cut out Mode" means the mode of operation employed under specific instructions from traffic controller over specified sections only, under this mode of operation in Automatic Train Control Cut-out condition the propulsion system would cut out traction of the train above forty kilometers per hour speed and the train operator shall manually drive the train in accordance with the line-side signals and shall monitor and limit the speed of the train if it exceeds forty kilometers per hour speed, by service brake application;(ee)"Delhi Metro Airport Express Line administration" means the person who is the owner or lessee of Delhi Metro Airport Express Line, or the person working Delhi Metro Airport Express Line under an arrangement with the owner or lessee of Delhi Metro Airport Express Line railway;(ff)"Delhi Metro Airport Express Line employee" means an employee duly qualified, possessing a valid certificate of competency and nominated to undertake and perform the duties entrusted to him;(gg)"Depot Controller" means a Delhi Metro Airport Express Line employee responsible for movements of rakes within the depot area including interchange of rakes between the depot and the main line;(hh)"Departure Order Indication" is an indication on a display panel in the train drivers cab conveying authority to the Train Operator to proceed/or start his train.(ii)"electrical way and works" means the traction installations including overhead equipment and other connected works provided on the electrified sections of the railway;(jj)"emergency" means an occurrence where there is an imminent or a continuing risk of injury and damage or major disruption to the railway service;(kk)"Emergency Stop Plunger or Switch" means the switch provided on the platform or with the Station Controller, the operation of which causes the trains, within the station limits, running on Automatic Train Protection to come to a stop;(ll)"Engineer's Possession" means a defined section of track under the sole control of an authorised supervisor for a specific length of time;(mm)"facing and trailing points" means points are facing or trailing in accordance with the direction a train or vehicle moves over them and the points are said to be facing points when by their operation, train approaching them can be directly diverted from the line upon which it is running;(nn)"feeding post" means a supply control post, where the incoming feeder lines from grid sub station are terminated;(oo)"fixed signal" means a signal of station at a fixed location controlling the movement of trains and forming part of the signaling systems;(pp)"fouling mark" means the mark at which the infringement of Standard Dimensions occurs where two lines cross or join one another;(qq)"headway" means the time interval between two successive trains;(rr)"incident" means any occurrence which cause or has potential to cause delay or disruption to passenger services;(ss)"interlocking" means an arrangement of signals, points and other appliances, operated from a panel or work-station, so interconnected by mechanical or electrical or electronic locking or both that their operation must take place in proper sequence to ensure safety;(tt)"isolation" means an arrangement secured by the setting of points, or other approved means, to protect the line so isolated from obstruction due to movement on other connected line or lines;(uu)"irrevocable emergency brake" means that when an emergency brake gets applied, intentionally or otherwise the emergency brake remains applied until the train speed comes to zero and the cause of application of the emergency brake is removed or reset;(vv)"local control" means the assumption of the responsibilities of the Traffic Controller for the specific station by a person who is authorized to do so for the time being;(ww)"neutral section" means a short section of insulated and dead overhead equipment, which separates the areas fed by adjacent sub station or feeding post;(xx)"normal direction of traffic" means traffic moving on the left hand side of the track;(yy)"obstruction" with its cognate expressions includes a train, vehicle or obstacle on or fouling a line or any condition which is dangerous to trains;(zz)"Operation Control Centre" means the organisation in overall charge of controlling the movement of trains on the main line;(aaa)"overhead equipment" means the electrical conductors over the track together with their associated fittings, insulators and other attachments by means of which they are suspended and registered in position for the purpose of electrical traction;(bbb)"passenger train" means a train intended solely for the movement of passengers and their baggage;(ccc)"permission to approach" means permission given from a block station in advance to block station in rear for a train to leave the latter and approach the former;(ddd)"platform screen doors" means a system of automated doors synchronised with the train doors which are provided at the platform edge to isolate passengers on platform from track;(eee)"Platform Supervisor Booth" means a monitoring cabin on platform for supervisor;(fff)"point and trap indicators" are not signals, but are appliances fitted to and working with points to indicate the position in which they are set;(ggg)"power block" means withdrawing traction current or power supply from a particular section;(hhh)"Proceed Code" means the Automatic Train Protection code other than zero speed code on the Train driver or Train operator's console which indicate the target speed;(iii)"Railway Board" means the Railway Board as empowered under section 2 of the Indian Railway Board Act, 1905 (4 of 1905);(jjj)"Restricted Manual Mode" means a driving mode where train is driven manually and is subjected to Automatic Train Protection in respect of maximum speed limit only;(kkk)"Rolling Stock Supervisor" means a Delhi Metro Airport Express Line employee duly qualified to examine trains and certify their fitness for safe running;(lll)"running line" means the track used for running trains through and between stations and includes connections, if any, used by a train when entering or leaving stations;(mmm)"running train" means a train which has started but has not completed its journey;(nnn)"Run on Sight" means a driving method where the train is driven manually and is not subject to Automatic Train Protection restriction;(ooo)"secure a train" means to make a full brake application, close down all driving positions and remove the train operator's control key and applying parking brakes where applicable;(ppp)"short circuit" means a fault condition in that circuit arising from the introduction of a path of low resistance to electric current;(qqq)"shunting" means the movement of a coach or coaches with or without traction motors or of any other self propelled vehicle, for the purpose of attaching, detaching or transfer or for any other purpose;(rrr)"signal" means an indication given to a train operator for controlling the movement of his train;(sss)"Signal Supervisor" means any Inspector of Signal and Telecommunication Department in charge of installation and maintenance of any signaling and, or associated telecommunication gears either on track or field or station or on train;(ttt)"special instruction" means instruction issued from time to time by the authorised officer in respect of particular cases or special circumstances;(uuu)"staff protection key" means a key provided in station control room extracted and given to authorised staff going to a particular track section for inspection or maintenance;(vvv)"staff special key" means a key provided to open Manual Secondary Door from platform side Which is used by the maintenance staff to access the track side;(www)"station" means any place on a line of the Delhi Metro Airport Express Line at which passenger traffic is dealt with;(xxx)"Station Controller" means the person on duty who is for the time being responsible for the working of the station and traffic within station limits and includes the Assistant Station Controller or any person who is for the time being in independent charge of the working of such station and traffic;(yyy)"station limits" means the limits or chainages as defined in the station working orders;(zzz)"Station Management System" means a control-panel/workstation installed at every station to monitor and control proper functioning of building services, including safety critical systems;(aaaa)"station section" means that portion of the running track within station limits, which is intervening between two consecutive block sections;(bbbb)"Station Control Room" means the room where station control panel or work-station is located;(cccc)"supply control post" means an assembly of interrupters, isolator switches, remote control equipment and other apparatus provided for controlling power supply to overhead equipment and it includes feeding posts sectioning and paralleling posts and sub-sectioning posts;(dddd)"Supervisor Track and Structure or works" means any Delhi Metro Airport Express Line employee responsible for the construction or maintenance of points and signals underground structure, surface structure, bridges or other works connected therewith;(eeee)"system of working" means one or more of the systems specified in Chapter VIII for the time being for the working of trains;(ffff)"target distance" means the distance within which the train must attain the target speed;(gggg)"target speed" means the speed displayed on the train operator's console to indicate the speed the train must not exceed at the target location;(hhhh)"terminal station" means the station at the end of a line;(iiii)"tower wagon" or "inspection car" means a self propelled vehicle, which is used for the maintenance and repairs of overhead equipment e.g. Catenary maintenance vehicle;(jjjj)"traction" means a traction system working on 25000 volts single phase, 50Hz alternating current.(kkkk)"track circuit" means an electrical circuit provided to detect the presence of a vehicle on a portion of track, the rails of the track forming part of the circuit;(llll)"traction Power Controller" means a competent Delhi Metro Airport Express Line employee responsible for the control of the traction power distribution system of the Delhi Metro Airport Express Line;(mmmm)"Traffic Controller" means a Delhi Metro Airport Express Line employee on duty in the Operations Control Centre who is for the time being responsible for running of trains on the Delhi Metro Airport Express Line;(nnnn)"traffic hours" means the period between the time of the start of the running of the first scheduled train and termination of the last scheduled train;(oooo)"train" means an engine with or without vehicle attached or any self propelled vehicle with or without a trailer which cannot be readily lifted off the track;(pppp)"Train Control and Monitoring system" means a system designed to provide information and exercise control on a variety of functions related to movement of metro trains, like traction, power, braking, air conditioning, etc;(qqqq)"train operator" means the Driver of the Delhi Metro Airport Express Line train for the time being in charge of movement and control of the Delhi Metro Airport Express Line train;(rrrr)"train radio" means a wireless telephone message communication system between the cab of the train, stations and the control.(ssss)"tunnel ventilation section" means a minimum length of a tunnel section of an up or down line capable of being mechanically ventilated using tunnel ventilation fans;(tttt)"work train" means a departmental train intended solely for execution of works on the Delhi Metro Airport Express Line network.(2)Words and expressions used in these rules and not defined but defined in the Metro Railway (Operation and Maintenance) Act, 2002 (60 of 2002), or the Metro Railways (Construction of Works) Act, 1978 (33 of 1978), shall have the meanings respectively assigned to them in those Acts.
