Persons riding bicycles or skating or gliding on in-line skates upon
any public street within the Village of Nyack shall not ride, skate
or glide more than one abreast and shall ride, skate or glide near
the right-hand curb or edge of the roadway or upon a usable right-hand
shoulder in such a manner as to prevent undue interference with the
flow of traffic except when preparing for a left-hand turn or when
necessary to avoid conditions that would make it unsafe to continue
along near the right-hand curb or edge.