explain the equation for length of spiral


Explain the Equation for Length of Spiral Curve

Length of Spiral Curve can be calculated using the following equation

Ls = 3.15V3/RC

Where:

V - Design Speed in MPH

R - Radius of the curve in feet

C - Rate of increase of lateral acceleration (use 1ft/sec3 unless otherwise stated)

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Civil Engineering: explain the equation for length of spiral
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