As shown in the figure below, a horizontal alignment consists of two tangent lines smoothened by a horizontal curve. A 4% superelevation rate is designed for the horizontal curve and the superelevation runoff length is 291 feet. The normal cross-section is shown in the figure below, where both left and right sections have 2% slopes for drainage. Calculate the tangent runout length. (Round to the nearest foot and fill in the blank with a number only.) PC Sta 20+ 30.00 R R +2% PT Rotation axis -2%
As shown in the figure below, a horizontal alignment consists of two tangent lines smoothened by a horizontal curve. A 4% superelevation rate is designed for the horizontal curve and the superelevation runoff length is 291 feet. The normal cross-section is shown in the figure below, where both left and right sections have 2% slopes for drainage. Calculate the tangent runout length. (Round to the nearest foot and fill in the blank with a number only.) PC Sta 20+ 30.00 R R +2% PT Rotation axis -2%
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![Question 13
As shown in the figure below, a horizontal alignment consists of two tangent lines
smoothened by a horizontal curve. A 4% superelevation rate is designed for the horizontal
curve and the superelevation runoff length is 291 feet. The normal cross-section is shown
in the figure below, where both left and right sections have 2% slopes for drainage.
Calculate the tangent runout length.
(Round to the nearest foot and fill in the blank with a number only.)
PC
Sta 20+30.00
R
+2%
R
PT
Rotation axis
-2%](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0655393b-8df3-4633-b13c-e0d6983d2306%2Fd0be76c8-627d-413b-8314-92557c1ed3a1%2Fssi8h7_processed.png&w=3840&q=75)
Transcribed Image Text:Question 13
As shown in the figure below, a horizontal alignment consists of two tangent lines
smoothened by a horizontal curve. A 4% superelevation rate is designed for the horizontal
curve and the superelevation runoff length is 291 feet. The normal cross-section is shown
in the figure below, where both left and right sections have 2% slopes for drainage.
Calculate the tangent runout length.
(Round to the nearest foot and fill in the blank with a number only.)
PC
Sta 20+30.00
R
+2%
R
PT
Rotation axis
-2%
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