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GM TOILET
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  DLW : Initiatives for Crew Comfort and Safety There are several factors which affect the safety and reliability of train operations. However, loco pilots being at the forefront of train running are probably the most important. Therefore, Indian Railways has always endeavored to equip this human resource with the necessary technical and operational competencies. Indian Railways has of late also started working towards providing the optimum working environment for this critical human resource.  As a locomotive designer and manufacturer, ! has an important role to play in this regard. Recogni#ing this responsibility ! had in the past worked with $ational Institute of design to improve the ergonomics of the Alco locomotive cab. ! stays committed to this task . and in the recent past , a number of initiatives have been taken for enhancing crew comfort and crew safety. In recent years the steps taken to ensure crew comfort and safety by ! are enumerated below ã %$&'(() *ompliant *ollision +rotection in - cab ã Improved isibility in /0 +/ ã T1T isplay 2creens ã Improved driver seat ã 3odified *omputer *ontrolled 4rake 2ystem 5**4 6 II7 ã Roof 3ounted *ompact Air8*onditioning 2ystem ã +rovision of *ab Heaters ã +rovision of toilet in - CAB COLLISION PROTECTION  hen the new generation - locomotive was designed, one of the important decisions taken at the designing stage was to provide collision protection for crew safety in compliance with international norms. In this respect, 9I* &'(() standard was adopted. The cab design was modified, the **4 relocated, collision posts provided and validated through 1% analysis. The cab is now designed to take /::k$ at the collision posts and ):: ;$ at the cab front wall. Wider Cab wit im!roved visibi ity in WD#P$%WD#$ o&omotives  A few years ago, 2outh estern < *entral Railways had raised the problem of poor visibility during !ong hood driving in +/0 / locomotives. This problem was studied in detail at DLW from the feasibility of design point of view and the cab structure drawing was reviewed in which both side walls of cab structure was extended 225mm on either side. n that case rear portion of the cab was made !2 mm wide well within the ##D to facilitate clear visibility in long hood drive to the crew and  bay windows were eliminated in new design. To operationally use this extension$ the si%e of loo&ing glass was increased from !'( to )*+ mm and driver seat was shifted outwards. To enable the above the top of under frame beneath the cab was also required to be widened accordingly. ue to this reason, the front sand bo=, piping and electrical wiring connecting both control desk was modified. Also, side windows, door frame and both cab doors were re8designed .   The front view of )8 model of the locomotive can be seen below 8  ,egular implementation was started by DLW from -pril 2 ( . Due to the substantial  benefits of this initiative$ ,ailway oard has also introduced a ,/0 programme for conversion of existing locomotive cabs in the field. T'T('IRE Dis! ay s&reens :    All the advanced railways in the world are switching over to T1T based displays. These displays have the following advantages. ã It is a single display system and can provide all displays required by crew. ã It provides better visuali#ation of data. ã It can provide multiple pre8configured screen to standardi#e the requirements. ã  Allows interactive interface The T1T displays reduces crew fatigue and improves crew reaction . 4esides ial type pneumatic gauges being used presently need frequent maintenance. The proposed technology up gradation of T1T !* display for gauges will be maintenance free.! has adopted this technology in the new design - with adoption of AAR 2->& compliant 1IR%  ) ' unctionally I ntegrated R ailroad E lectronics7   Technology which is interactive, enables the locomotive crew to perform a number of functions related to requesting information, reset faults, set up subsystems, receive fault messages, perform tasks e.g. traction motor cut out. 2imilar technology has also been adopted on +/ and )A locomotives . Im!roved and Er*onomi& desi*n of driver seat The driver seat is a critical component which affects the crew fatigue, crew efficiency and ergonomics. Therefore over the years, several efforts have been made to progressively upgrade the seat . ! has worked with an industry leader to provide a rugged seat with the following features : ã 1orward and 4ackward movement8&?:mm  ã 9p and own movement 8&::mm ã Rotational movement 8)(: degree ã 4ack rest reclining feature 8): degree @) degree These seats have been fitted on five locomotives till now. Another ): loco sets are being procured for wider trials. +odified Com!,ter Contro ed Bra-e System )CCB . II/ The adoption of 11 besides bringing in several advantages for locomotive maintenance and reliability $ also improves crew reaction . 11 provides for display of faults and status on the bra&e controller. t also allows the crew to bye pass a faulty 11 and clear the bloc& section. 11 provides for a direct port to access data for distributed power and any other application.DLW has recently provided this technology on a WD3) and WD35 locomotive. DLW intends to provide this feature on 5 locomotives this year. Deve o!ment of Air &onditionin* ,nits on Diese E e&tri& o&omotives The development effort for air conditioning of %3 locomotives were started in '::/ with placement of two developmental purchase orders . The A* supplied had separate inverters and air conditioning units. :> units supplied by 30s 2idwal were fitted on locomotives and all did not perform in field because of various problems and were removed from locomotives. These units were bulky, were protruding inside cab, thereby reducing head space and causing difficulty in accessing control compartment also. These units also did not have heating facility.!earning from this e=perience the specification was revised to have compact design, embedded inverters, heating elements, improved maintainability and a proven design. ! has procured five air conditioning units as per the new specification from ayton +hoeni= . Bne each of these units have been successfully fitted on passenger and freight application. ! has provided for air conditioned cab in the new generation -. It is also going to provide air conditioning on +/ locomotives on trial basis.
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