LOCOMOTIVES

Locomotives

Diesel Locomotives are now fitted with Auxiliary Power Units which saves nearly 88% of Fuel during the idle time when train is not running.

Note: This classification system does not apply to steam locomotives in India as they have become non-functional now. They retained their original class names such as M class or WP class.A locomotive may sometimes have a fifth letter in its name which generally denotes a technical variant or subclass or subtype. This fifth letter indicates some smaller variation in the basic model or series, perhaps different motors, or a different manufacturer. With the new scheme for classifying diesel locomotives (as mentioned above) the fifth item is a letter that further refines the horsepower indication in 100 hp increments: 'A' for 100 hp, 'B' for 200 hp, 'C' for 300 hp, etc. So in this scheme, a WDM-3A refers to a 3100 hp loco, while a WDM-3D would be a 3400 hp loco and WDM-3F would be 3600 hp loco.Locomotives in India consist of electric and diesel locomotives. The world's first CNG (Compressed Natural Gas) locomotives are also being used. Steam locomotives are no longer used, except in heritage trains. In India, locomotives are classified according to their track gauge, motive power, the work they are suited for and their power or model number. The class name includes this information about the locomotive. It comprises 4 or 5 letters. The first letter denotes the track gauge. The second letter denotes their motive power, Diesel or Alternating current (Electric), and the third letter denotes the kind of traffic for which they are suited (goods, passenger, Multi or shunting). The fourth letter used to denote locomotives' chronological model number. However, from 2002 a new classification scheme has been adopted. Under this system, for newer diesel locomotives, the fourth letter will denote their horsepower range. Electric locomotives don't come under this scheme and even all diesel locos are not covered. For them this letter denotes their model number as usual.

Goods wagons

The number of goods wagons was 205,596 on 31 March 1951 and reached the maximum number 405,183 on 31 March 1980 after which it started declining and was 239,321 on 31 March 2012. The number is far less than the requirement and the Indian Railways keeps losing freight traffic to road. Indian Railways carried 93 million tonnes of goods in 1950–51 and it increased to 1010 million tonnes in 2012–13.

However, its share in goods traffic is much lower than road traffic. In 1951, its share was 65% and the share of road was 35%. Now the shares have been reversed and the share of railways has declined to 30% and the share of road has increased to 70%.