16. The main design criteria for horizontal curves is super elevation 17. When d

Question

16. The main design criteria for horizontal curves is super elevation 17. When deter mining adequate stopping sight distance, the height of the n as and the height of an object in the road driver's eye is taken 18. What is the minimum sight distance that should be provided on a multi- lane roadway designed for 45 mph where f 0.34, reaction time is 2.0 seconds and the grade is-20% ? 30(0-G) The deflection angle of a 2.5 degree curve is 45 degrees and 30 minutes. If the PC is located at station 25+19.21, determine the length of curve and the station of the PT. 19. RAII and L= 180 5729.6 R= D

Explanation / Answer

16) True. In horizontal curves super elveation is provided for the vechicle to not to effected by the centrifugal force developed at turnings.

17) Driver eye = 1.2 m

Height of object is 0.15m

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