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Trends in Personal Income and Passenger Vehicle Miles.
| 题名： | Trends in Personal Income and Passenger Vehicle Miles. |
| 作者： | Memmott-J. |
| 关键词： | *Passengers-; *Income-; *Vehicle-mileage; *Travel-demand.;Transportation-systems; Households-; Families-; Commuters-; Suburban-areas; Trends-. |
| 摘要： | For years, increasing income has been a principal factor contributing to the rapid growth of highway passenger travel. As incomes increased, the demand for additional transportation services manifested itself in a variety of ways: more individuals and households acquired personal vehicles; the proportion of multiple vehicle households grew; families moved to larger and more comfortable housing in the suburbs, thereby increasing commuting trip distances; and the number and length of discretionary trips increased. As a result, passenger highway travel, as reflected in vehicle miles of travel (VMT), increased rapidly. |
| 报告类型： | 科技报告 |
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