Register

An existing highway-railway at-grade crossing is being redesigned as grade separated to improve traffic operations. The railway must remain at the same elevation. The highway is…

An existing highway-railway at-grade crossing is being redesigned as grade separated to improve traffic operations. The railway must remain at the same elevation. The highway is…
asked 84.1k views
0 votes
an existing highway-railway at-grade crossing is being redesigned as grade separated to improve traffic operations. The railway must remain at the same elevation. The highway is being reconstructed to travel under the railway. The underpass will be a sag curve that has an initial grade of -2% and a final grade of 2%. The PVI of the sag curve will be centered under the railway (a symmetrical alignment). The sag curve design speed is 45 mi/h. How many feet below the railway should the curve PVI be located

asked
User Teeny
by
8.2k points

1 Answer

3 votes

Answer:

Please find attached solution

Step-by-step explanation:

an existing highway-railway at-grade crossing is being redesigned as grade separated-example-1
an existing highway-railway at-grade crossing is being redesigned as grade separated-example-2
answered
User Thatidiotguy
by
8.4k points
← Prev Question Next Question →

Related questions

Ask a Question
Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.

Categories

Other Questions

4. Which of the following is the first thing you should do when attempting to park? A. Securing the parking spot by standing in it B. Turning on your hazard lights C. Confirming the space can fit your
A water towers lowest point is 405 ft and the main line is 6 feet below the ground. The ground elevation is at 276 ft. The main line travels 2.9 miles. The pipe will travel through the following flanged
The bulk modulus of a fluid if it undergoes a 1% change in volume when subjected to a pressure change of 10,000 psi is (a) 0.01 psi (b) 0.001 psi (c) 0.00001 psi (d) 0.000001 psi (e) none of these
Link Copied!