vironmental Engineering Site Home User Guides Hwy Eng, S1 2018 70> 21 May -27 Ma
ID: 1765455 • Letter: V
Question
vironmental Engineering Site Home User Guides Hwy Eng, S1 2018 70> 21 May -27 May > Week 12 Moodle Quiz: Revising Road Design Hongqi Zhao estion 2 t yet answered arked out of .00 An equal-tangent vertical curve is to be constructed between grades of-3% and +2% (traveling left to right). The PVI is located at 4+550.000 and has an elevation of 190m. An adjacent driveway to the new road being designed must maintain accessibility. In order to abide this design constraint the elevation of the road at station 4+650.000 must be 193m. If the vertical curve is designed using the general equation of a parabola:, which of the following options presents the correct expression for the constant " (all equations are expressed in metres) Flag question Select one c = 190 + 0.015L b.c 190 ? ?. ? 193 + 0.01 5L d. c-190+0.03L ?, ? 193 Next page revious page Accessibility Site Map Privacy Content&Social; Media Disclaimer Copyright & Disclaimer | ademic Integrity ademic Integrity Privacy Content & Social Media Disclaimer Copyright& Disclaimer Accessibility Site Map u are logged in as Hongal Zhao (Log out)Explanation / Answer
General equation of parabolic curve : y = ax2 + bx + c
a = (g2-g1)/2L = [2- (-3)]/ (2L)
b = g1 = -3
c = 190 - g1 (L/2) = 190 - (-3/100) L = 190 + 0.015L [ANS.]
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.