Proposed centre buffer coupler used in Rajdhani Express

As of now, a single engine hauls 18 to 24 coaches of a long distance train. Considering the risk it poses to numerous lives, especially in the event of derailments of other train accidents, Indian Railways has decided to revamp the technology that binds so many coaches to a single engine. It's the coupler — the technology that holds two coaches — which is undergoing modifications, and the process has already been initiated on the Western Railways (WR).