5 Find out the length of sag vertical curve required using S

5. Find out the length of sag vertical curve required, using SSD criteria, for a - 5% grade meeting a + 5% grade. The curve should be designed for a design speed of 70 mph. Calculate the length using the formula and compare your results with the relevant table/figure. (10 points)

According to formula,

Length=SSD= •278Vt+V^2÷(254×f)

Where, V design speed (kmph)=•070kmph

t= reaction time ( 2•5 sec if not given)

f = slope(gradient)=10%=•01

Then , L=•050+6 = 6•050 m

6m is always add for the safety purpose of gradient

5. Find out the length of sag vertical curve required, using SSD criteria, for a - 5% grade meeting a + 5% grade. The curve should be designed for a design spee

5 Find out the length of sag vertical curve required using S

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