Track Drainage

GENERAL Track drainage involves the interception and removal of water from; upon or under the track and is accomplished not only by surface interception and drainage arrangements; but also where…

Surveying in Railways

SURVEYS FOR TRACK ALIGNMENT In a railway project from beginning till its construction, four different surveys in stages are required to be conducted. The following survey should be carefully conducted…

Interlocking of Signals and Points

DEFINITION Interlocking is defined as the technique achieved through mechanical or electrical devices or agencies by which it can be ensured that before a signal is taken to “OFF” position,…

Creep of Rails

Definition Creep is defined as the longitudinal movement of rails with respect to sleepers in a track. Creep is common to all railway tracks, but varies in magnitude considerably, the…

What is Superelevation in Highway ?

When a fast moving vehicle passing from a straight path suddenly negotiates a horizontal curve is termed as Superelevation. The centrifugal force acts on the vehicle from inside towards the…