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Tangent Profile Elevation Calculation Example # Calculation example – Elevation Calculation along Profile Tangent

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Determine the elevation of an unknown point X which lies between two known points A and B along an alignment tangency. The profile of tangency AB is also a tangent.

** Known** **values:**

**Solution:** Elevation of point X, ** H_{X}**.

The road has a constant grade** S** along the examined section, which equals to tangent angle

Grade ** S** calculation:

Elevation of point X, HX. The road has a constant grade S along the examined section, which equals to tangent angle Î±, formed by the tangent AB and the horizontal plane.

Grade S calculation:

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