Bruce Hannon, Francisco Puleo

Research output: Contribution to journalConference articlepeer-review


The variables which describe a mass transit system are combined in a statistical model to produce a new set of mutually independent variables called principal components which also describe the system. The principal components are combined in a generalized n-dimensional model which in three dimensions is identical to the shear and normal stress on the octahedral plane, a well-known concept from engineering mechanics. The normal stress is a measure of the system's tendency to grow without structural change; the shear stress is a measure of the tendency to change structurally without growth. These stresses are compared with the energy and employment requirements and dollar of various bus systems.

Original languageEnglish (US)
JournalAmerican Society of Mechanical Engineers (Paper)
Issue number73 -WA/Ener-5
StatePublished - 1973
Externally publishedYes
EventUnknown conference -
Duration: Nov 11 1973Nov 15 1973

ASJC Scopus subject areas

  • Mechanical Engineering


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