The equilibrium superelevation to be provided on a curve of radius R metres and speed of vehicle V kmph is given by

where G is gauge

- 1
  
  $\frac{G V^{2}}{127 R}$
- 2
  
  $\frac{G V^{2}}{160 R}$
- 3
  
  $\frac{G V^{2}}{147 R}$
- 4
  
  $\frac{G V^{2}}{217 R}$

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