Question: Design Speed = 9 0 km / h R = 3 0 0 m Level Grade One ( 1 ) lane per direction, 3 .

Design Speed =90 km/h R =300 m Level Grade One (1) lane per direction, 3.35m per lane Stopping Sight Distance =160m Problem : Determine the horizontal clearance requirements (from edge of the pavement up to the obstruction) for a horizontal curve on a two- lane highway using stopping sight distance (SSD).

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