The tangent length of a simple circular curve of radius R deflecting through ?°, is
Options
A. R tan ?
B. R tan ?/2
C. R sin ?
D. R sin ?/2
E. R cot ?/2
Correct Answer
R tan ?/2
Highway Engineering problems
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1. The total value of extra widening required at a horizontal curve on a two lane hill road of radius 42 m for a design speed of 50 kmph and for vehicles with wheel base 6 m, is