A vertical curve has g1 = -3% and g2 = +6 for a vertical curve length of 1200 ft. How far is the low point located from the PVC? a. 400 ft b. 500 ft c. 666.67 ft d. 333.33 ft
Question
A vertical curve has g1 = -3% and g2 = +6 for a vertical curve length of 1200 ft. How far is the low point located from the PVC? a. 400 ft b. 500 ft c. 666.67 ft d. 333.33 ft
Solution
The low point of a vertical curve is located at the point where the curve changes from descending to ascending. This is calculated using the formula:
L = Length of the vertical curve g1 = initial grade g2 = final grade
The distance from the Point of Vertical Curvature (PVC) to the low point is given by the formula:
d = L * |g1| / (|g1| + |g2|)
Substituting the given values:
d = 1200 * |-3| / (|-3| + |6|) d = 1200 * 3 / (3 + 6) d = 1200 * 3 / 9 d = 400 ft
So, the low point is 400 ft from the PVC. Therefore, the answer is (a) 400 ft.
Similar Questions
A vertical curve has g1 = -3% and g2 = +6 for a vertical curve length of 1200 ft. What is the elevation at the PVT if the PVI = 53.50? a. 89.50 ft b. 83.50 ft c. 56.50 ft d. 53.80 ft
A vertical curve has a length of 5.5 stations. The entering grade is 5.2%, the exiting grade is 0.8%, and the PVI Station and Elevation is 73+40.00 and 254.16 feet respectively. a) Compute the station and elevation of the high point on the curve. b) Compute the elevation on the curve directly below the PVI? Is this the high point on the curve? Why or why not? c) Station the curve using 100 foot stations. d) Compute curve elevations for each station. Show your 1st and 2nd differences to check your work. e) Clearly show the high point on the elevation curve on your sketch. Will the grade curve ever have a slope of zero? Show your answer on the grade curve.
A simple horizontal curve has a radius of 600 ft and central angle of 70o. Compute the Tangent distance. a. 420.12 ft b. 306.93 ft c. 230.20 ft d. 350.10 ft10 points QUESTION 3A simple horizontal curve has a radius of 600 ft and central angle of 70o. Compute the long chord. a. 939.69 ft b. 965.93 ft c. 573.58 ft d. 688.29 ft10 points QUESTION 4A simple horizontal curve has a radius of 600 ft and central angle of 70o. Compute the external distance. a. 132.46 ft b. 110.39 ft c. 118.84 ft d. 268.64 ft10 points QUESTION 5A simple horizontal curve has a radius of 600 ft and central angle of 70o. Compute the middle ordinate. a. 90.42 ft b. 108.51 ft c. 103.32 ft d. 328.99 ft10 points QUESTION 6A simple horizontal curve has a radius of 600 ft and central angle of 70o. Compute the degree of curve. a. 14.32o b. 36o c. 9.55o d. 11.45o10 points QUESTION 7A curve has a degree of curve of 16o. This means that: a. the angle for a 100 ft length of curve is 4o b. the angle for a 100 ft length of curve is 8o c. the total (central) angle of the curve is 16o d. the angle for a 100 ft length of curve is 16o10 points QUESTION 8A vertical curve has g1 = -3% and g2 = +6 for a vertical curve length of 1200 ft. What is the elevation at the PVI if PVC= 53.50 ft? a. 38.50 ft b. 68.50 ft c. 53.35 ft d. 35.50 ft10 points QUESTION 9A vertical curve has g1 = -3% and g2 = +6 for a vertical curve length of 1200 ft. What is the elevation at the PVT if the PVI = 53.50? a. 89.50 ft b. 83.50 ft c. 56.50 ft d. 53.80 ft10 points QUESTION 10A vertical curve has g1 = -3% and g2 = +6 for a vertical curve length of 1200 ft. How far is the low point located from the PVC? a. 400 ft b. 500 ft c. 666.67 ft d. 333.33 ft10 points QUESTION 11A vertical curve has g1 = -3% and g2 = +6 for a vertical curve length of 1200 ft. What is the elevation at the low point if the low point is 400 ft from the PVC? PVC elevation is 53.50 ft. a. 59.50 ft b. 47.50 ft c. 53.50 ft d. 50.00 ft10 points QUESTION 12Compute the volume of fill between station 5+00 (Area = 250 ft2) and 6+00 (Area= 500 ft2). a. 375 CY b. 1388.89 CY c. 750 CY d. 500 CY
A simple horizontal curve has a radius of 600 ft and central angle of 70o. Compute the Tangent distance. a. 420.12 ft b. 306.93 ft c. 230.20 ft d. 350.10 ft
A simple horizontal curve has a radius of 600 ft and central angle of 70o. Compute the external distance. a. 132.46 ft b. 110.39 ft c. 118.84 ft d. 268.64 ft
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.