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Railway Engineering

1.Rail joint welded Rail Long welded Rail 2.Ballest,Formation and sleepers Ballast and Ballast cushion Minimum depth of ballast cushion Composite sleeper index Sleeper density 3.Geomeric design of track Different guages safe speed on curves based on Martins Formula Safe speed based on Super Elevation Speed from the length of transition curve Radius & Degree of curve Versine of curve Grade Compensation Super Elevation (cant) (e) Equiliberium Cant (e') Equilibrium Speed or average Speed(Vav) Maximum value of cant (emax) Cant Deficiency(D) Transition Curve (Cubic Parabola) Extra lateral clearance on curves Extra clearence on platform Guage widening on curves 4.Points and crossing Heel Divergence or heel clearance Switch angle Flange way clearence Minimum length of tongue Rail Distance between TNC & ANC Number Angle of crossing Cross over Design of diamond Crossing 5.Track stresses Dynamic Augment Hammer blow effect steam effect Inertia of Reciprocating forces Method of calculating logitudinal bending stress in rail Rail wheel contact stresses Formation Pressure Track deterioration and maintainability of track

6.Traction and Tractive Resistance Trctive Effort

Hauling Capacity (H.C)

Train Resistance

Resistance due to Track

Resistance due to Starting & Acceleration

Wind Resistance Total Resistance

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