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- An equal-tangent crest vertical curve is designed for 65 mi/h. The initial grade is +3.4% and the final grade is negative. What is the elevation difference between the PVC and the high point of the curve?
An equal-tangent crest vertical curve has a 50-mi/h design speed. The initial grade is +3%. The high point is at station 33 + 40.76 and the PVT is at station 37 + 24.66. What is the elevation difference between the high point and the PVT?
(10 pts) A crest curve with an initial tangent grade of 3.7% and a final tangent grade of-4.1% has a length of 1400 feet. What is the maximum recommended speed limit for the curve?
2. A crest vertical curve is to be designed by joining a +4% initial tangent with a final -3% tangent. The station location and elevation of VPC are 250+45 and 500 ft respectively. The design speed is 50 mph on the curve. Using AASHTO geometric design guideline, determine: (a) Station location of VPT. (b) Vertical offset at each 1/4 of length distance from VPC.
4. A vertical curve is designed for 55 mi/h and has an initial grade of 2.5% and a final grade of -1.0%. The PVT is at station 114 + 50. It is known that a point on the curve at station 112 + 35 is at elevation 245 ft. What is the stationing and elevation of PVC?
An equal tangent vertical curve of length 420 ft connects a +2.25 % initial grade and a -2.75 % final grade. What is the design speed of the curve?
An equal-tangent vertical curve connects an initial grade of +2% and-2%. The PVI is located at an elevation of 1000 feet. If the design speed is 60 mi/h and the curve is designed for stopping sight distance, then what is the elevation of the PVT, in feet?
13. A 400-ft long equal tangent sag vertical curve has its PVC at station 100+00 and o b elevation 500 ft, the initial grade g,--4% and the final grade g2 elevation of the lowest point of the curve. +2.5%. Determine the
EXIT 211 A A 2,125 ft equal tangent vertical curve joins a +2.2% grade to-3.6% grade. The PVI of the vertical curve is station 55+21 at elevation 150 ft. To meet MUTCD standards for advance guidance, an overhead sign structure must be placed at station 55+85. The bottom of the sign will be 18 ft above the roadway surface (more than the recommended 16.5 feet to accommodate larger trucks that use the roadway). WEST 56 Utopia Botlom of sign 18...
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