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Crest Vertical Curve Length on Roadways Calculator

Calculate the minimum curve length to provide visability when designing a roadway to allow for visability of objects by pedestrians / drivers to support visual safety in road design.

Crest Vertical Curve Length on Roadways Calculator
Sight Distance (S)
Initial Roadway Grade (g1)
Final Roadway Grade (g2)
Height of driver's eye above Roadway surface (h1)
Height of object above Roadway surface (h2)
Crest Vertical Curve Length on Roadways Calculator Results
Minimum Curve Length (Lm) in meter =
Minimum Curve Length (Lm) in foot =

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