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A road is provided with a horizontal circular curve having deflection angle of 55° and centre line radius of 250 m. A transition curve is to be provided at each end of the circular curve of such a length that the rate of gain of radial acceleration is 0.3 m/s3 at a speed of 50 km per hour. Length of the transition curve required at each of the ends is
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- 2.57 m
- 33.33 m
- 35.73 m
- 1666.67 m
- 2.57 m
Correct Option: C
| Ls = | ||
| αR |
| = | = 13.89 m /s. | |
| 60 × 60 |
α = 0.3 m /s2 / m
| Deviation angle , Ls = | = 35.722 | |
| 0.3 × 250 |
