"TRB's National Cooperative Highway Research Program (NCHRP) Report 524: Safety of U-Turns at Unsignalized Median Openings includes recommended guidelines for locating and designing unsignalized median openings, and a methodology for comparing the relative safety performance of different designs"--Publisher's description.
Many agencies discourage access within the functional area of a signalized intersection, as recommended in current access management guidelines, which also suggests that unsignalized median openings be bidirectional openings designed for ...
... Utah DOT ARNOLD F. WELLMAN , JR . , VP / Corporate Public Affairs , United Parcel Service JAMES A. WILDING , President and CEO , Metropolitan Washington Airports Authority M. GORDON WOLMAN , Professor of Geography and Environmental ...
In fact , far from confusing drivers , the three rural , unsignalized intersections with medians more than 31 m ... The implication that , by contrast , longer median openings are desirable at suburban intersections seems less well ...
Such strategies include the use of center two-way left-turn lanes or removal of curb parking, and most of these strategies ... between various design elements and suggests careful evaluation of the use of narrower-than-typical lanes.
The TRB National Cooperative Highway Research Program's NCHRP Research Report 1018: Zone of Intrusion Envelopes Under MASH Impact Conditions for Rigid Barrier Attachments seeks to develop zone of intrusion (ZOI) envelopes for a variety of ...