superhighways

/S UW0 P ER0 HH AY1 W EY0 Z/
noun
  1. 1

    An expressway, especially one designed for high speeds.

  2. 2

    (by extension) A major route that carries most of the traffic going in a given direction by a specified mode of transportation.

  3. 3

    (metaphoric) The primary mechanism used in the movement of electronic data or information; information superhighway.

Source: https://en.wiktionary.org/wiki/superhighway, https://en.wiktionary.org/wiki/superhighways