The Expressway Site:
The Expressway Site is your premier source of information about “at-grade expressways” in the
United States and Canada. Contrary to the belief of most people in the Northeast and Chicago regions, an expressway
(as defined by the US Federal Highway Administration and most state departments of transportation) is not the same
thing as a freeway. Freeways are fully controlled access highways with no at-grade intersections. Expressways are a
cross between a freeway and a normal road. In short, an expressway is a highway with at-grade intersections and possibly
traffic lights, but with strict restrictions on the existence of driveways. These highways are useful because they
move traffic more efficiently without all of the costs and disruptions of a freeway. Officially, the FHWA defines
expressways as highways with “partial access control” and defines partial access control as “the
exercise of police power to limit access to a highway from abutting land to specified and controlled points. In
addition to possible interchanges there may be some crossings at grade with public roads, but direct private
driveway connections have been minimized.”
This site is being renovated and will be down for several months.
Sorry for the inconvenience.