Answer....

The following horizontal and vertical alignments apply to a rural road. This class 1 road has a design speed of 100km/hr Calcculate the final road levels (left edge, centre-line, right edge) at stake values 50 070,0 and 50110,0 if the following details aply to the horizontal curve (20) Maximum superelevations is 4% BC7 Stakevalue is 50 095,168 EC7 stake value si 50 298, 962 Curve 7 is right turning Lane & shoulder width is 5,7m Observe minimum design in your calculations HORIZONTAL ALIGNMENT Point Stake Value Y Co-ordinate X Co-ordinate Radius EC3 44 884,362 24 390,301 14 116,507 P1 4 24 485,000 11 524,000 4000 P1 4 24 362,904 10 322,041 2000 PI 6 24 406,451 9 267,503 731,513 PI 7 24 885,246 8 661, 872 1920,221 PI 8 25 216,227 8 137,260