2. In a certain underpass, the vertical clearance of the 240m parabolic sag curve with PC at Station 13 + 000 and elevation 30m is 4.40m. The height of the object at the instant of perception is 1.10m while that of the driver's eye is 1.40m. If the approach grade is -4% and the passing sight distance is 320m, what is the grade of the forward tangent. At what point(Station and elevation) of the curve is the catch basin.

2. In a certain underpass, the vertical clearance of the 240m parabolic sag curve with PC at Station 13 + 000 and elevation 30m is 4.40m. The height of the object at the instant of perception is 1.10m while that of the driver's eye is 1.40m. If the approach grade is -4% and the passing sight distance is 320m, what is the grade of the forward tangent. At what point(Station and elevation) of the curve is the catch basin.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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