The perpendicular distance between two parallel tangents of the reverse curve is 55m. The azimuth of the back tangent is 270⁰ and the common tangent is 310⁰. If theradius of the second curve is 150 m., determine the radius of the first curve. 4. REVERSED CURVED with PARALLEL TANGENTS – is a type o reversed curved whoseforward and back tangents are parallel12Vi..PRCR2DV2PTThe perpendicular distance between two parallel tangents of the reverse curve is 55m. The azimuth of the back tangent is 270° and the common tangent is 310°. If theradius of the second curve is 150 m., determine the radius of the first curve.

Calculate the central angle of the first curve I1=310o-270oI1=40o

Answered: nd the common tangent is 310⁰. If the…

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter15: Geometric Design Of Highway Facilities

Section: Chapter Questions

Problem 13P

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The perpendicular distance between two parallel tangents of the reverse curve is 55
m. The azimuth of the back tangent is 270⁰ and the common tangent is 310⁰. If the
radius of the second curve is 150 m., determine the radius of the first curve.

4. REVERSED CURVED with PARALLEL TANGENTS – is a type o reversed curved whose
forward and back tangents are parallel
12
Vi..
PRC
R2
D
V2
PT
The perpendicular distance between two parallel tangents of the reverse curve is 55
m. The azimuth of the back tangent is 270° and the common tangent is 310°. If the
radius of the second curve is 150 m., determine the radius of the first curve.

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