Orange County NC Website
r A <br />Passing Sight Distance - <br />Minimum Passing Distance, <br />Feet (2 lane) 1100 1500 1800 2100 <br />Minimum K* Value for Crest <br />vertical Curve 365 686 985 1340 <br />Sight intersections sshould pbevineaccordano <br />Aped vehicles at <br />with <br />Geometric Design of Highways and Streets(p,ASHTO). On <br />4. The following table shows the maximum degree of curve <br />and related maximum superelevation for design speeds. <br />The maximum rate of roadway superelevation <br />( <br />roads with no curb and gutter is 0.08. <br />The maximum rural <br />Of suPerelevation for urban streets with curb and gutter <br />is 0.06 with 0.04 desirable. <br />Design Speed <br />Max. <br />Minimum <br />Radius <br />Maximum Degree <br />MPH <br />e* <br />Feet <br />of Curve <br />Degrees <br />20 <br />30 <br />125 <br />45.0 <br />40 <br />.04 <br />.04 <br />300 <br />560 <br />19.0 <br />50 <br />.04 <br />10.0 <br />60 <br />.04 <br />1410 <br />6.0 <br />4.0 <br />20 <br />30 <br />.06 115 <br />50.0 <br />40 <br />.06 <br />275 <br />510 <br />510 <br />21.0 <br />50 <br />.06 <br />11.5 <br />60 <br />.06 <br />1260 <br />7.0 <br />4.5 <br />20 <br />30 <br />.008 110 <br />53.5 <br />40 <br />.08 <br />460 <br />23.0 <br />50 <br />.08 <br />760 <br />12.5 <br />60 <br />.08 <br />1140 <br />7.5 <br />5.0 <br />* e = rate of roadway superelevation, Foot per foot <br />D. Intersections <br />1. Streets shall be laid out so as to intersect as <br />nearly as possible to right angles, and no street <br />should intersect any other at an angle of less than <br />sixty degrees. <br />2. Property lines at intersections should be set so <br />that the distance from the edge of pavement, of the <br />78 <br />