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Distance Between Radial Roads
Outer Curb Outline
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angles assumed design speed bridged rotary capacity channelization conﬂicts cross slope crown line curvature deﬁned deﬁnitely desirable directional island divided highways drivers effect elongated entering the rotary entering vehicles entrances and exits existing rotaries feet Figure ﬂat grade separations hazard highway design speed indicated inner edge intersecting roads Intersections at Grade justiﬁed landscape development layouts left turns light control systems located markers median strip minimum weaving lengths motorists necessary operation outer curb pedestrian refuges pedestrian traﬂic Policy on Intersections proﬁle radius reduced speed reduction in speed reﬂectors result reverse curve roadway width rotary 1-way road Rotary design speed rotary intersections rotary movement rotary road rotary roadway rotary traﬂic shown in ﬁgure sight distance speed of rotary speed reduction split central island stop-and-go control suﬂicient superelevation traffic traﬂic density classiﬁcation traﬂic lanes triangular island urban areas vehicles entering volume of traﬂic weaving distance width of rotary