superhighway

1. (US) An expressway, especially one designed for high speeds.US

2. (by extension) A major route that carries most of the traffic going in a given direction by a specified mode of transportation.Examples: "We cannot and should not be rebuilding old "two lane" sections of the air transport system with segments having "eight lane superhighway" capacity without knowing the full economic, safety, and environmental impacts of the entire air traffic superhighway."; "By 1400, however, Western Europeans had developed their own versions of oceangoing ships, and these transformed the much narrower Atlantic Ocean from a barrier into a superhighway."; "One of them was exploring the possibility of a bicycle superhighway along the River Dodder."broadly

3. (figurative) The primary mechanism used in the movement of electronic data or information; information superhighway.Examples: "In the discussion about the pros and cons of the electronic superhighway, people often refer to the Internet."; "How should we reinterpret the universal service obligation for the superhighway? It is clear that price is already a barrier to access to the basic telephone service."; "As both Bell Atlantic and TCI have made clear, their superhighway will give them full control over the programming from its point of origin through its delivery to the home."figuratively