X=0

Y=2

Z=4

Design the4-lane 2-way circular curves that will connect the entry and exit points of the bypass road shown above.Use lane width = 3.70m and normal cross slope = -1.5%for the entire stretch of road.Determine the following:

a.Station where normal crossslope is first achieved aftersecond curveends.

b.Station where design superelevation on second curve ends.

c.Sketch of the cross-section 5 meters to the leftof second curves PC.

d.Stationing of the exit point, X if the minimum sight distance is to be implemented. Use Coefficient of friction=0.2Z, PIEV time= 1.YZ sec,and design speed=60 kph.

e.Elevation of point of intersection of back and forward tangents, V.

f.Elevation of the station 10 meters to the right ofV.

g.Minimum sight distance along PI-1 and PI-2 if there are obstructions 5 meters from the centerline.

H .Minimum sight distance along PI-3if there isobstruction6.2meters from the centerline.

Sta. PC Sta. PT emax Curve ID No. PI-1 PI-2 PI-3 Centerline radius 194.0 m 75X.0 m 25Y.Y m 12+100.00 12+600.00 13+512.00 12+500.00 12+812.00 13+812.00 Design Speed, kph 50 30 60 8.08 4.08 8.0% Sta. PC Sta. PT emax Curve ID No. PI-1 PI-2 PI-3 Centerline radius 194.0 m 75X.0 m 25Y.Y m 12+100.00 12+600.00 13+512.00 12+500.00 12+812.00 13+812.00 Design Speed, kph 50 30 60 8.08 4.08 8.0%