In railway track design, cant is provided by:
Correct answer: C. Raising the outer rail above the inner rail
- A. Lowering both rails below the formation level
- B. Raising the inner rail above the outer rail
- C. Raising the outer rail above the inner rail
- D. Increasing the spacing between the two rails
Explanation
Cant, also called superelevation, raises the outer rail on a curve to help balance the centrifugal effect of a moving train. Raising the inner rail would act in the wrong direction for a normal curve.
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About Transportation Engineering
Transportation engineering covers highway planning and alignment, traffic studies, road geometric design, pavement materials and flexible or rigid pavement construction. It also includes railway, airport and traffic engineering concepts such as sight distance, superelevation, signals, capacity and level of service, distinguishing pavement failure from poor geometric design.
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