All-Versine Highway Spiral Formulas

by G. J. Thornton-Smith,

Serial Information: Journal of the Surveying and Mapping Division, 1962, Vol. 88, Issue 1, Pg. 41-50

Document Type: Journal Paper


It is demonstrated that all the angles and linear dimensions required for setting out a clothoid can be related through factors having the general form in which ψ is the spiral angle and n is a coefficient of three significant figures.

Subject Headings: Highways and roads | Linear functions

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