Indian Railways Gauge Widening Formula for Curves
The calculation for the extra width needed on railway curves, known as gauge widening, is determined by a specific formula in Indian Railways. This ensures train stability and safety when traversing curves.
The standard formula for gauge widening (W) is:
$W = \frac{13(B+L)^2}{R}$
Formula Components Explained
- W: Represents the calculated widening of the gauge, typically measured in millimeters (mm).
- B: Represents the standard width of the railway gauge (e.g., for Indian Broad Gauge, B is 1676 mm).
- L: Represents the length of the rolling stock (like a coach or wagon) in meters (m).
- R: Represents the radius of the curve the train is negotiating, measured in meters (m).
This formula helps engineers determine the necessary track adjustments for curves based on the specific gauge, rolling stock dimensions, and curve radius.
Important Questions from Curves
The difference in length between the arc and the subtended chord on the earth's surface is taken as 500mm in:
The length of a simple circular curve of radius R meters and deflection angle D degrees will be
The angle of intersection of a curve is the angle between the
The shift of a circular curve is given by __________
Where,
L = Length of transition curve and R = Radius of the circular curve
The point where the alignment changes from a straight line or tangent to a circular curve is called as-
