Rolling stock means any vehicle that runs on a rail track. Electric locomotives as the name suggests run on electric power from fuel cell or battery or overhead lines. Diesel locomotives are run by diesel engine. The various types of diesel locomotives are diesel-pneumatic, diesel-steam, diesel-hydraulic, diesel-electric, and diesel-mechanical. High-speed are intercity trains moving at an average speed of 200 to 300+ km/h. Electric multiple unit (EMU) is a multiple unit train which is run by a self-propelled carriage using electric power. Diesel multiple units (DMUs) like EMUs is a multiple unit train run by on-board diesel engines. They can be diesel-electric (DEMU), diesel-hydraulic (DHMU) and diesel-mechanical (DHMU). Generally EMUs and DMUs are used as passenger trains. Metros are mostly found in urban cities and are mass rapid transit trains. Planning To Lay Down Future Strategy? Request Sample https://www.transparencymarketresearch.com/sample/sample.php?flag=S...