The number of miles traveled by an individual person, across different modes of travel. For example, one person walking one mile is one person-mile. Likewise, one vehicle with four passengers traveling one mile is equal to four person-miles.
The number of miles traveled by an individual person, across different modes of travel. For example, one person walking one mile is one person-mile. Likewise, one vehicle with four passengers traveling one mile is equal to four person-miles.