The correct formula for calculating superelevation for the hill roads, is

- 1
  
  $e = \frac{V^{2}}{254 R}$
- 2
  
  $e = \frac{V^{2}}{225 R}$
- 3
  
  $e = \frac{V^{2}}{278 R}$
- 4
  
  $e = \frac{V^{2}}{114 R}$

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