Question

A horizontal circular curve (no spirals) has a deflection angle of 35° 35’ 13” at a PI station of 85 + 48.53, and a degree of curve of 5° 18’ 53”. Find the direction and distance from the PC to the first two station stake on the curve [not counting the PC as one of the 2].

Answer #1

A horizontal circular curve (no spirals) has a deflection angle
of 35° 35’ 13” at a PI station of 85 + 48.53, and a degree of curve
of 5° 18’ 53”. Find the direction and distance from the PC to the
first two station stake on the curve [not counting the PC as one of
the 2].

Horizontal Curve Given: Radius (R) = 851.88' Degree of Curve
(Da°) = 06°-43'-33" PC Station = 05 + 16.73 Deflection angle to
Station 10 + 75 = ?
Question 9 options: 18°-48'-18" 18°-46'-27" 18°-45'-12"
18°-41'-54"

A horizontal curve with a 300 intersecting angle on a two-lane
highway with 12-ft has a 60 mph design speed. The radius for the
horizontal curve has been set to 1,250 ft. The PI is located at
station 85 + 29.14 and the normal crown on the tangent is 2%.
Determine:
a) Tangent to Spiral (TS) station,
b) Spiral to Curve (SC) station,
c) Curve to Spiral (CS) station, and d) Spiral to Tangent (ST)
station.

A horizontal curve with a 300 intersecting angle on a two-lane
highway with 12-ft has a 60 mph design speed. The radius for the
horizontal curve has been set to 1,250 ft. The PI is located at
station 85 + 29.14 and the normal crown on the tangent is 2%.
Determine:
a) Tangent to Spiral (TS) station,
b) Spiral to Curve (SC) station,
c) Curve to Spiral (CS) station, and d) Spiral to Tangent (ST)
station.

A section of a roadway has a horizontal curve with
superelevation of 6% and central angle of 40o. The
design speed of the section is 60 mph. There are two lanes on the
curve, each 12 ft wide. Determine:
(a) The degree of the curve.
(b) The length of the curve.
(c) The minimum distance of an obstruction from the centerline
of the innermost lane.

A horizontal curve on a three-lane highway with 12-ft lanes has
a PC located at station 10+00 and PT at station 13+70. The central
angle is 25 degrees, the superelevation is 4%, and 40 ft of
clearance is available between an obstruction and the centerline.
Determine the maximum safe design speed to the nearest 5 mph.

1. Use a calulator to find a decimal approximation for each
value.
sec(-216 degrees 13')=
(round to seven decimal places)
2. A space vechile is orbiting Earth in a circular orbit. What
radian measure corresponds to (a) 2.5 orbits? (b) 5/4 orbits?
(a) the radian measure corresponding to 2.5 orbits is ___. (Type
an axact answer in terms of pi. Type an interger or a simplified
fraction)
b) the radian measure corresponding to 5/4 orbits is ___. (Type
an exact...

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x
20.2
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ch 6
1:
It is generally a good idea to gain an understanding of the
"size" of units. Consider the objects and calculate the kinetic
energy of each one.
A ladybug weighing 37.3 mg
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.
×10
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