The PRT (Personal Rapid Transit) system is a computer controlled and light weighted railway vehicle using linear motors. The speeds of vehicles are controlled to be constant, and the distances between vehicles, namely, headway is also strictly controlled to be only 12m at 40km/hr. Thus, the vehicle density of the PRT system is much higher than that of the mass railway train (MRT) system. Moreov...

with increase in traffic and speed railway became one of the major load on supply grid .AC-DC convertor used in locomotive of traction system draws rich harmonics content current results in poor power quality and failure or missed operation of utility causing derating of grid and affect the reliability. This paper provide framework for issue like harmonics, voltage sage ,voltage unbalance, poor...

the main design criteria of ballasted railway tracks include rail deflections, rail bending stresses, rail wheel contact stresses, sleeper bending moments and ballast sleeper contact pressures. numerous criteria have been defined for the design of ballasted railway tracks owing to the various mechanical properties of track components and their complex interaction. therefore, railway track desig...

Induction motor structures in DC electrified railways with their dynamic performance are studied. Characteristics of the current, voltage, electrical and mechanical torque and active and reactive power in accelerating, normal and regenerative braking are investigated. The characteristics of the induction motors used for Tabriz urban railway are simulated with PSCAD/EMTDC software proving the in...