Columbia subject headings:
Local transit--New York (State)--Long Island.
Railroads--New York (State)--Long Island--Commuting traffic.
Traffic surveys--New York (State)--Long Island.
Harvard subject headings:
Commuting--New York (State)--Long Island.
Local transit--New York (State)--Long Island.
Origin and destination traffic surveys--New York (State)--Long Island.
Railroads--New York (State)--Long Island--Commuting traffic.
Princeton subject headings: