Answer Happy

300738 Surveying for Engineers Autumn Tutorial 5 Network Calculations & Road Geometry Question 1 Find the coordinates of P by carrying out an angular resection from points H, M and N. Then check the coordinates using the additional control point L. Use the method described in Lecture 8 part A. MC) NA) H(B) Point H 1. М. N mE 314.202 321.360 414.763 548.670 mN 422.788 528.885 566.583 452.733 Angle HPL LPM MPN Observed value 24°28'09" 27°45'46 49°4628
The calculations for the coordinates can be tabulated below N KN E KE K Angle Question 2 a) A vehicle weighing 1500kg is travelling on a curve with a horizontal radius of 600 metres, at a speed of 80kph. For a roadway with a 6 metre wide carriage way, what is the superelevation required for there to be no net sliding force between the vehicle and road surface? b) For the same curve and vehicle speed, on a flat, straight road way calculate the following if the maximum superelevation is limited to 6% of the carriage way width required friction coefficient to enable this radius and speed to be adopted. If the friction coefficient is not suitable, what is the minimum radius given a friction coefficient from the Austroads Guide (Hint: see slides from this weeks lecture)