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Frequency Is Freedom

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In the conceptual diagram of our seven transit demands in chapter 2, one feature of transit should stand out. Frequency has a direct role in meeting four of the seven transit demands, more than any of the others. It also dominates three of the seven phases of a trip, and it’s the main measure of everyone’s least favorite phase: waiting. Frequency is also the essence of the distinction between routes (sites of occasional transportation events) and lines (transit that is there whenever you need it).


  • Transit System
  • King County
  • Frequent Service
  • Favorite Phase
  • Frequent Network

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    Santa Clara Valley Transportation Authority, “Bus and Rail Map,” (accessed June 30, 2011). Again, no particular criticism of this agency is implied. Their map is just an especially clear example of a common industry practice.

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© 2012 Jarrett Walker

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Walker, J. (2012). Frequency Is Freedom. In: Human Transit. Island Press, Washington, DC.

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