Given the vertical alignment shown below with stationing and grades (exact) indi

Question

Given the vertical alignment shown below with stationing and grades (exact) indicated and the elevation of the start point defined, complete the following computations to the nearest 0.01 feet. Compute the elevation of PVI -1, PVI -2, and the end point of the alignment. If the vertical curves are selected for the alignment with L1 = 12 stations (exact) L2 = 18 stations (exact) Compute the station and elevation of the PVC and PVT for both curves. Compute the station and elevation of the low point of curve 1 and the high point of curve 2. Make a labeled sketch to show the final vertical alignment.

Explanation / Answer

Please read these articles these have all the data you seek 1. http://www.esf.edu/for/Germain/Horizontal%20Curve%20Formulae.pdf 2. http://proceedings.esri.com/library/userconf/survey11/papers/pap_3014.pdf 3. http://www.dot.ca.gov/hq/row/landsurveys/LSITWorkbook/07.pdf 4. http://www.google.com/url?sa=t&rct=j&q=how+to+calculate+elevation+of+curve+in+surveing&source=web&cd=1&cad=rja&ved=0CDQQFjAA&url=http%3A%2F%2Fcourses.washington.edu%2Fcive316%2Flectures%2Fpps_lectures%2FVerticall_Curves.pps&ei=psrBUJz3PI_LtAa7moHQDA&usg=AFQjCNEgRbBGqZSUzZaL0Bdq_3EOdB_QEg 4. http://laserlevelsusa.info/calculators/vertical_curve/vertical-curve-calculator.htm

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