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U-Turns and Partial Restrictions
Apartment complex driveways, parking lots and everything else gets a Parking Lot Road (PLR) segment.
==== Turns, U-Turns and Partial Turn Restrictions ==== I would add a note to be careful of TRs that should be there (re shift+z)Valid TRs such as from physically divided roads and illegal turns In Massachusetts it is legal to make a left turn across one double yellow line. Turning across two double yellow lines, spaced apart 2 feet or more, is considered a barrier, and is illegal to cross.  Please do not disallow left turns due to URs reporting “dangerous” or “too difficult” turns, without consulting a Local Host. 
U-Turns are legal at all street intersections, unless signed as restricted. When in doubt, check Street View.