Design of Horizontal Curves
Design of Horizontal Curves
Design of Horizontal Curves
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Run<strong>of</strong>f<br />
Locating a portion <strong>of</strong> the run<strong>of</strong>f on the<br />
tangent, in advance <strong>of</strong> the PC, is<br />
preferable, since this tends to minimize<br />
the peak lateral acceleration and<br />
resulting side friction demand.<br />
For non-spiral curves, the NDDOT<br />
places 2/3 <strong>of</strong> the run<strong>of</strong>f on the tangent,<br />
and 1/3 <strong>of</strong> the run<strong>of</strong>f on the curve.
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