Geometric Features
The design speed chosen for a highway is a major factor in choosing superelevation rates and radii of curves, sight distance, and the lengths of crest and sag vertical curves. Roads with higher travel speeds require sweeping curves, steeper curve banking, longer sight distances, and more gentle hill crests and valleys. Lower speed roads can have sharper curves, less banking, less sight distance, and sharper hill crests and valleys.
Read more about this topic: Design Speed
Famous quotes containing the words geometric and/or features:
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—Roland Barthes (1915–1980)
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—Andrew Jackson (1767–1845)