A spiral is to be introduced to a 4-lane highway with a 2° 30' horizontal curve, maximum superelevation rate of 6%, and a design speed of 70 mph. The curve has a central angle (A.) of 25°. If the TS station is 15+00, type your answers to the following items without showing equations or calculations. 1. Radius of curve 2. Length of curve 3. Length of spiral 4. SC station 5. CS station 6. ST station

Q: Q1/A horizontal curve with degree of curvature of 4° and intersection angle of 55°25', the PC is…

A: A curve is given between two stations with the following observations.degree of curve, D=…

Q: Some engineers use the term grade to represent 1/100 of a right angle and express grade as a…

A: Given Details: Angle of 0.9o = 1% grade

Q: You are designing a vertical sag curve joining a -3% grade to a +2% grade. The design speed is 60…

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Q: QUESTION 3 A simple horizontal curve has 35 degrees of curvature and subtends an angle of 110…

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Q: In Idaho Spring, Colorado, an existing tunnel on I-70 (Veterans Memorial Tunnel, Figure 1) is to be…

A: Data given Elevation tunnel floor = 1500 ft Elevation of bridge deck = 1540 ft Station  PVC of sag…

Q: What is the station of the PI for a curve of length 345 feet and radius of 1,242 feet, if the PT is…

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Q: 6. The common tangent BC of a reverse curve is 280 m and has an azimuth of 312 degrees. AB is…

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Q: Prepare a table of chords and deflection angles for staking out a 600 foot radius circular curve…

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Q: Given the tangent distance equal to 224.87 meters and the angle of intersection equal to 48, what is…

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Q: Problem 2. A horizontal curve is being designed for a two-lane highway (12-ft lanes). The PC is at…

A: Central angle= 40 degree  Station of PC= 1200+50

Q: Vertical highway curve: Given PVI at 128 + 00, L = 1,000 ft, g1 = -5%, g2 = +4%, and PVI elevation =…

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Q: A building is located 40 m from the centerline of the inside lane as shown.

A: Solution: Given Data: Horizontal sightline offset=HSO=40 mSSD=600 mLenth of curve=Lc=550 m

Q: Design a vertical curve connecting PVI₁ (station = 4+980, Elevation = 198 m), PVI₂ (station = 5+990,…

A: PVI₁ (station = 4+980, Elevation = 198 m) PVI₂ (station = 5+990, Elevation = 163 m) and PVI₃…

Q: A horizontal curve has a design speed of 50 mph. If e = 0.10 and f = 0.16, find the degree of curve.…

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Q: A horizontal curve on a two-lane highway is designed with a 610-m radius, 3.5-m lanes, and 80 kph…

A: Given, R = 610 m w = 3.5 m  V = 80 kph or 22.22 m/s  f = 0.35

Q: Problem 3: The angle of intersection of a simple curve is l=53.13 ° and the length of curve is…

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Q: 4. There is a curve with a Back Tangent with a bearing of S 30° E and a Forward Tangent with a…

A: Station of Point of intersection= 135+76.45  Degree of curve= 10°

Q: Answer fast

A: If you have any doubts feel free to ask.... Thankyou

Curve setting

A curve is a turn that is provided horizontally or vertically in the design of highways, railways, and runways. A curve connects two straight lines that are separated by the deflection angle. It helps to change the direction and alignment of the highways, railway tracks, and runways. Therefore, the gradual change in their alignment is made by using a curve to provide comfort to the passengers and this also provides an easy turn to change the direction of the moving vehicle.