Designed by Creative Computing 4 Windows

SPIRAL CURVE CALCULATOR (Equal in & out spirals)

Spiral Diagram

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CURVE DATA
PI =
TOTAL CURVE
Delta(t) =
(dd-mm-ss) Format
T(s) = ?
L(t) = ?
SPIRAL (in) MAIN CURVE SPIRAL (out)
a = ? Delta(m) = ? a = ?
Delta(s) = ? D =
(dd-mm-ss) Format
Delta(s) = ?
L(s) = L(m) = ? L(s) = ?
R = ?

STATIONING

Instructions

Use this program to check the values shown on the Right of Way Plans for equal in & out Spiral Curves. The required information is the Total Curve Delta , Degree of Curve & Spiral Length. Use the following format for the Delta & Degree of Curve. (dd-mm-ss).

Enter the Tangent to Spiral Stationing as (xxx+xx.xx) to compute the Spiral to Curve , Curve to Spiral , Spiral to Tangent and PI Stationing.

TS =
(xxx+xx.xx) Format
SC = ?
CS = ?
ST = ?

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