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| Type | Commercial Circular |
|---|---|
| Topic | freight |
| Currency | Currency not verified |
systems will be required only after one million kilometers These contain mostly covered and open wagons including wagons like BOX type wagons etc for
Lesson 3
Coaches and Wagons
In this Chapter there are more details about the coaches used for transport of passengers and
wagons used for transport of goods.
1.
COACHING STOCK
1.1 There are different types of passenger coaches such as II class, I class, II sleeper, AC3 Tier, AC2
Tier and ACI Class. AC Chair Car, AC Executive Chair Car etc.
1.2 Indian Railways had in 2015-16 a stock of about 8805 EMU plus DMU Coaches and 53132
conventional coaches 6899 other Coaches with a total carrying capacity of about 53.75 lacs passengers.
1.3 Different designs of coaches.
(i)
Integral coaches built by Integral Coach Factory Perambur, Madras (I.C.F.) and Rail Coach Factory
(RCF) at Kapurthala.
(ii)
Coaches built by Bharat Earth Movers Ltd. Bangalore (BEML).
(iii) Wooden body coaches of Indian Railway Standard Design (IRS). (Now extinct)
(iv) New Type of LHB high speed coaches built by Rail coach factory at Kapurthala plus ICF parambur.
1.4 Some of the salient features of these of coaches are given in table 3.1
Table 3.1: Salient feature of different coaches
Item
ICF
LHB
1 Type of body
Light metal body
Light metal
2 Type of structure
All metal all welded
integral coach having
Stainlass steel
t
tubular construction.
3 Coach dimension
Overall width
3245 mm
3250 mm
Overall Length
21337 mm
23540 mm
Overall height
4025 mm
4250 mm
4. Damage during
Less damage because of
Very less
collisions
anti telescopic structure
damage
and derailments
and the end wall absorbs shock.
5. Speed Potential
110 Kmph/140 Kmph
200 Kmph
1.5 Passenger comfort and safety are the key words in the design of coaching stock. Research,
Design and Standard Organisation (R.D.S.O.) at Lucknow, Integral Coach Factory (I.C.F) at Chennai and
Rail Coach Factory (R.C.F.) at Kapurthala are constantly engaged with the task of fulfilling these
requirements.In the new second class coaches, seats have been specially designed for comfort providing
more space including knee room per passenger, and these coaches have a more pleasant interior more
number of fans and more spacious lavatories fitted with mirrors and wash-basins.
Two-tier air-conditioned sleeper coaches with a capacity of 46 berths are replacing the first class
coaches with a capacity of 24 berths. Double Decker coaches introduced on a limited scale on high
density short distance routes have a seating capacity of 144 against 90 passengers in a conventional
coach. Latest to be introduced are 3-tier AC coaches with 64 berths. These are replacing A.C. Chair Cars
in all long distance trains. High capacity Garib Rath 3 tier AC Coaches & AC Chair Cars have also been
introduced.
1.6 Design Features of Modern ICF Coaching Stock
1.6.1 The need for carrying more passengers with greater comfort in every coach, the need for
having more coaches in every train and the need to run these trains at progressively increasing speeds
has necessitated modernisation of rolling stock.
1.6.2 The coaches manufactured by the Integral coach Factory at Chennai are of Integral design.
The coach body is an all metal light weight, tubular structure. The trough under flooring, the sides and
the roof are welded to form an integral unit. The floor consists of cross-beams, specially designed
headstocks and sole bars etc. which are all welded together. Under the cross-beams runs the steel trough
flooring welded to the head stocks and sole bars. The advantage is that a trough section can withstand
greater longitudinal loads and still helps to keep the weight down. The curved body of the coach is
designed to absorb heavy impact shocks. Further, at the ends, the under flooring is designed to be
collapsible so that in case of accidents, the maximum energy of the impact is absorbed there. The
tubular structure ensures that the coach does not collapse inwards. Maximum passenger sa
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