Question

81627740 1-FALL-2018/ECNS80-Qian_Fall%202018-5.pdf Homework 3-Due 9/20 An ascending 1.0% grade intersects a 1.2% descending grade at a elevation 840.00 on dedicated HSR line with a speed of 220 mph. a. Determine the required length of vertical curve using the CURRENT AREMA approach. Compute the top of rail (TOR) elevations at the beginning of the vertical curve (BVC, or PVC), end of the vertical curve (EVC, or PVT), and at all intermediate stations through the vertical curve using the Tangent Offset method. (BVC-0+00) Plot the curve on a graph with any software you prefer to show all the key points. b. c.
Could you help solve parts A & B please

Answer 1

elevotien = 840.00 , V:220 mph 门As pira AREMA Approach = 0.00 2 A veshal acalanation nger train o.66 L = 0.00 2 x (220)2X2-15 lot tsanus o.60

loO vc EVC ElevationEC8AO 20 834.91811 Tangent a되set method

838 0 fel嵃3.d. olevation Bve