Not exactly. You could say 'all expressways are highways but not all highways are expressways'. A highway is a general term usually for county, state or federally maintained roads of two lanes or more, usually with clearly marked lines, signs and shoulders/verges. Interstates are another type of highway but not all highways are interstates either. A two lane state highway can be quite small and full access while an interstate is usually four or more lanes and limited access. An 'expressway' is usually built and maintained by a city or other municipal entity to move traffic around a city more quicky and effuciently (in a perfect world anyhow) and relieve congestion on surface roads in the city. Most expressways encircle a city, though some also radiate out to larger suburban areas. They are usually very limited access like an interstate.
1 year ago
Last edited at 3:03PM on 11/15/2012
In my country what you'd call Highway has speed limit of 130km/h and it is required that it has at least 2 lanes + one lane for servicing in any direction (the opposite directions are divided from each other by concrete wall) . It is prohibited to stop on such road, except in case of accident, when you have to use service lane. Express way has speed limit of 110km/h and requires at least 2 lanes in any direction. It is possible to stop there.