A Gray Swan Decade

Alan E. Pisarski, Steven E. Polzin

Research output: Contribution to specialist publicationArticle


The outlook for travel in the coming decades is probably the most difficult to predict since forecasting gained prominence. What do those working on long-range transportation plans foresee as issues that will influence travel? What considerations will affect planning for the future? It may be an era of tremendous uncertainty.

Original languageEnglish (US)
Number of pages4
Specialist publicationTR News
StatePublished - Sep 2020
Externally publishedYes

ASJC Scopus subject areas

  • Automotive Engineering
  • Mechanical Engineering


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