Railroad Curves and Earthworks
Railroad Curves and Earthworks
Railroad Curves and Earthworks
SIMPLE CURVE
Sample Problem
Problem
The angle of intersection of a circular curve is 45° 30' and its
radius is 198.17 m. PC is at Sta. 0 + 700. Compute the right angle
offset from Sta. 0 + 736.58 on the curve to tangent through PC.
A. 2.98 m
B. 3.37 m
C. 3.09 m
D. 3.87 m
Sample Problem
The angle of intersection of a circular curve is 36° 30’.
A. 203.74 m
B. 253.72 m
C. 226.94 m
D. 214.67 m
Sample Problem
Given the following elements of a circular curve: middle ordinate =
2 m; length of long chord = 70 m. Find its degree of curve, use arc
basis.
A. 4.5°
B. 5.3°
C. 2.9°
D. 3.7°
Sample Problem
Given the following elements of a circular curve: R = 175 m; Central Angle
= 60 degrees ; Station of P.C. = 0 + 570
a. Find the distance from the Point of Intersection to the Point of Curvature.
b. Determine the Length of Curve
c. Determine the Station of Point of Tangency.
d. Determine the External Distance