Question: Draw the three ( 3 ) sketches that the problem is asking: SITUATION: As a highway design engineer you are given the responsibility of designing

Draw the three (3) sketches that the problem is asking:
SITUATION: As a highway design engineer you are given the responsibility of designing the horizontal, vertical alignment and the corresponding superelevation of a two lane secondary rural road in the Municipality of Belmont. It was decided that the superelevation will rotate with respect to the centerline of the highway. The pertinent data required for this design is shown below:
V=40mph
=2545'RT
D=9
PI at 36+17.42
Two-lane highway, 24ft wide, each lane 12ft wide
PVI at 36+00
Elevation PVI =450.00
g1=-1.5%
g2=+2%
L=300ft
Tangent Runout at 400:1
Normal crown at 2%
REQUIRED
-A sketch of the vertical curve (sag or crest) with all the pertinent components (Station and Elevation of PVC, PVI and PVT, g1, g2, with the appropriate sign (positive or negative grade), length of vertical curve).
-A sketch of the three (3) profiles with the corresponding elevations at the centerline,inside (right edge) and outside (left edge) of the pavement.
Hint #1: The profiles should start at point A (the last station at which the normal crown ends) and finish at point A'(the station at which the normal crown resumes at the tangent segment).
-A sketch of the cross sections at point A, B, C, D, E and E', with the corresponding elevations at the centerline, inside (right edge) and outside (left edge) of the pavement.
Draw the three ( 3 ) sketches that the problem is

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Civil Engineering Questions!