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passenger mile

or pas·sen·ger-mile

noun
  1. a unit of measurement, consisting of one mile traveled by a passenger, that airlines, railroads, and other public transportation facilities use in recording volume of traffic.
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Origin of passenger mile

First recorded in 1900–05
Related formspassenger mileage, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for passenger mile

Historical Examples

  • The passenger-mile—representing the progress of one train over one mile of track—is the unit of that form of traffic.

    The Railroad Problem

    Edward Hungerford

  • A passenger-mile, as we know already, is one of the units in estimating the traffic revenue of a railroad.

    The Railroad Problem

    Edward Hungerford