1.0 Rolling Stock:
1.1.MetrooperationinKolkatastartedin1984onanundergroundstretchof3.4kmbetweenEsplanade and Bhowanipore (now Netaji Bhawan). Initially, the rolling stock fleet comprised of 4-car rakes. Over the years there has been considerable expansion to the network, both underground and on elevatedsections.Thenetworkcurrentlyconsistsofoneoperationallineof27.22kmfromNoapara toKaviSubhash.Withtheincreaseintraffic,8-carrakeformationhasbecomeastandardforMetro Railway, Kolkata. The rolling stock organization, headed by Chief Electrical Engineer/Rolling Stock , broadly comprises of two wings, viz. maintenance wing and operationwing.
1.2. Salient Data on RollingStock:
| Rake MR-200 Series | No of Rakes | 6 |
| Rake Composition | 6 MC + 2 TC |
| Passenger Seating Capacity | 48 Seat/DMC 54 Seat/Other Coach |
| Ladies Seating Capacity | 14 Seat/Coach |
| Senior Citizen/ Divyang Seating Capacity | 06 Seat/ DMC 12 Seat/Other Coach |
| Tare Weight: | DMC | NDMC | TC |
| 40 T | 40 T | 29 T |
| Gross Weight (with Dense Crush Load) | DMC | NDMC | TC |
| 58 T | 58 T | 47 T |
| Vestibule Dimension | 1780 mm x 720 mm |
| Total Horse Power of Rake | 5221 HP |
| Maximum Acceleration | 1.1 m/s2 |
| Max. Deceleration during braking | 1.3 m/s2 |
| Propulsion System | DC propulsion System with variable resistance for regulated speed. |
| Type of Brakes | ED, EP, Auto, Emergency |
| Supply voltage | 750 V DC (nominal) – 3rd rail |
| Designed Speed Potential | 80 KMPH |
| | Suspension | Primary suspension with helical spring and secondary suspension by Coil spring with swing link and Bolster arrangement. |
| | Passenger Amenity |
| | Route Information Board | 06 nos./Coach |
| | Emergency Talkback Unit | 02 nos./Coach |
| | Coach Fan | 11 nos./Coach |
| Rake MR-300 Series | No of Rakes | 13 |
| Rake Composition | 6 MC + 2 TC |
| Passenger Seating Capacity | 44Seat/DMC 48 Seat/Other Coach |
| Ladies Seating Capacity | 12 Seat/Coach |
| Senior Citizen/ Divyang Seating Capacity | 8 Seat/DMC 12 Seat/Other Coach |
| Tare Weight: | DMC | NDMC | TC |
| 47 T | 47 T | 35 T |
| Gross Weight (with Dense Crush Load) | DMC | NDMC | TC |
| 66 T | 68 T | 55 T |
| Vestibule Dimension | 1900 mm x 720 mm |
| Total Horse Power of Rake | 5449 HP |
| Maximum Acceleration | 1.1 m/s2 |
| Max. Deceleration during braking | 1.3 m/s2 |
| Propulsion | DC propulsion System with variable resistance for regulated speed. |
| Type of Brakes | ED, EP, Auto, Emergency |
| Supply voltage | 750 V DC (nominal) – 3rd rail |
| Designed Speed Potential | 80 KMPH |
| Suspension | Primary suspension with coil spring and secondary suspension by Air Spring with levelling valve. |
| Passenger Amenity |
| Route/Passenger Information Board | 02 nos./DMC and 03nos./other coach |
| Emergency Talkback Unit | 02 nos./Coach |
| HVAC/RMPU | 22 TON/Coach |
| Rake MR-400 Series | No of Rakes | 9 |
| Rake Composition | 2DTC+4MC+2TC |
| Total Passenger Seating Capacity | 44 Seat/DTC 48 Seat/Other Coach |
| Ladies Seating Capacity | 12 Seat/Coach |
| Senior Citizen/ Divyang Seating Capacity | 8 Seat/DTC 12 Seat/Other Coach |
| Tare Weight: | DTC | MC | TC |
| 36.8 T | 41.8 T | 36 T |
| Gross Weight (with Dense Crush Load) | DTC | MC | TC |
| 58.3 T | 65 T | 59.5 T |
| Vestibule Dimension | 1951 mm x 1370 mm |
| Total Horse Power of Rake | 3264 HP |
| Maximum Acceleration | 1.1 m/s2 |
| Max. Deceleration during braking | 1.3 m/s2 |
| Propulsion | 3-Phase IGBT based AC propulsion with Variable Voltage Variable Frequency control system. |
| Type of Brakes | Regenerative Braking, EP, Auto, Emergency |
| Supply voltage | 750 V DC (nominal) – 3rd rail |
| Designed Speed Potential | 80 KMPH |
| Suspension | Primary Suspension by Conical Spring and Secondary Suspension by Air Spring with levelling valve. Bolster less design with anti roll mechanism. |
| Passenger Amenity |
| Route Information Board/ In Coach Display | 08 nos./Coach |
| Passenger Alarm Device | 04 nos./Coach |
| CCTV Camera | 04 nos./Coach for Series rake |
| HVAC/RMPU | 22 TON/Coach for prototype rakes 24 TON/Coach for Series rakes. |
1.3.Maintenance of Rolling Stock:
1.3.1 Various maintenance schedules and periodicity thereof prescribed at present for the rolling stock are as under.
| Daily Inspection | Every day |
| 3-Day Inspection | Every 3rd day |
| 45-Day Inspection | After 45 days |
| 6-Monthly Inspection | After 6 months |
| Annual Inspection | After 1 year |
| Periodic Overhauling (POH) | After 3,00,000 km of running or 5 years whichever is earlier for old rakes and After 4,00,000 km of running or 6 years whichever is earlier for new rakes. |
When operation of Metro Railway started in Calcutta, all maintenance of rakes was carried out at Tollygunge (now Mahanayak Uttam Kumar) car shed. The shifting of maintenance activities from Tollygunge shed to Noapara car shed (located approximately 2 km away from DumDum Cantonment station of Eastern Railway towards West) was completed in January 2004 to augment the manpower resources and to stick to the inspection schedules as per periodicity. Scheduled Maintenance activities of Rolling Stock are now mainly carried out at NoaparaCarShedwhiledailyand3dayinspectionsarealsocarriedoutatKaviSubhashCarShed on round the clock basis. Mahanayak Uttam Kumar shed acts as a satellite shed where daily schedules of rakes and normal stabling of rakes are carried out. A connection from DumDum Metro station to Noapara exists for injection/withdrawal of rakes. Section-wise activities in Noapara car shed are asunder.
VarioussectionslikePPO,Shift,ControlGear,Electronics,RotatingMachine,Pneumatic,Door, Mechanical,Heavyrepair,AncillaryEquipmentcarryoutschedule and unscheduled maintenanceactivitiesofequipments as per the respectiveschedules.
1.3.2Facilities Available at RunningShed.
i)Shed atNOAPARA;
Inspectionpit: 08 Nos.(Line20/21/22/23/24/25/26/27)
HeavyLiftingBay: 02 No. (Line 17/18)
StablingLines: 09 Nos.(Line 2/4/5/6/7/28/29/30/31)
Run RoundTestTrack: 01 No.(Line 32)
Machinary andPlants:-
EOT Cranes(30/6Ton): 02 nos. EOT Hand operated Crane(15/3Ton): 02 nos. Staticcompressor: 02nos.
Staticsmallcompressor: 06 nos.
Fork Lifter(DieselOperated): 01no.
Pit TypeWheel Lathe: 01no.
BatteryOperatedLocomotive: 02 nos.
AccidentReliefVan: 01 no.
TestBenches: 07 nos.
RoadVehicle: 01 nos. (Hired)
ii)Shed at Kavi Subhash:
Inspectionpit: 04nos.
HeavyLiftingBay: Nil
Stabling &WashingLines: 06 nos.
Testtrack: Nil
RoadVehicle: 01 nos. (Hired)
Machinary and Plants:
BatteryOperatedLocomotive: 03 no.
AccidentReliefVan: 02 no
1.4 Rolling Stock Operation:
1.4.1.Crew Lobbies: One Motorman (Driving Motorman) in the front driving cab and one Motorman in the rear cab (Conducting Motorman) constitute the crew for one train. Signing on/off of the crew is done at two lobbies, viz. at Dum Dum and Kavi Subhash stations. The crew lobbies are provided with all the facilities prescribed for crew booking. Besides Motormen, few Shunters are also posted at Dum Dum and Kavi Subhash for movement of rakes to/from Noapara and Kavi Subhash shed and also to perform shunting operation in the shed.
1.4.2.Training of Crew: Training to running staff is given at the Training Centre at Noapara. There is a in motion simulator for imparting interactive training. Various kinds of training is as under.
| SN | Nature of Training | Duration | Interval |
| 1. | Initial Training to Trainee Motorman recruited through RRB | 52 Weeks | One time |
| 2. | Initial Training to Trainee Motorman inducted from Zonal Railway | 24 Weeks | One time |
| 3. | Initial Training to Shunter inducted from Zonal Railway | 12 Days | One time |
| 4. | Combined Refresher Course | 3 Weeks | 3 yrs. |
| 5. | Fire Fighting | 1 Day | 3 yrs. |
| 6. | First Aid | 1 Day | 3 yrs. |
| 7. | Initial Training for Artisans promoted to Shunter | 104 days | One time |
1.5.A Stores Depot at Noapara caters to the material requirement for maintenance and operation of rolling stock.
