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原文传递 U.S. Department of Transportation, Bureau of Transportation Statistics: Transportation Indicators, December 2002

题名：	U.S. Department of Transportation, Bureau of Transportation Statistics: Transportation Indicators, December 2002
关键词：	Transportation; Indicators; Review(Reexamination); Commercial aviation; Civil aviation; Safety; Statistical data; Economic indicators; Air transportation; Traffic volume; Vehicles; Demographics; Energy consumption; Economic development; Environments; Expenditures
摘要：	This report is intended to provide timely, easily accessible information for the transportation community. It was developed by the Bureau of Transportation Statistics (BTS) of the U.S. Department of Transportation (DOT), and is updated each month on the BTS website. Each indicator is placed under a heading corresponding to one of the five strategic goals of DOT - safety, security, mobility, economic growth, and environment. The indicators fall under two broad categories: those that provide context about the economy and society in which transportation functions, and those that convey information about an aspect of transportation. To the extent possible, these latter indicators are transportation- wide in scope; however, some apply to only part of the transportation system. Reference tables at the beginning of the document provide key statistics about U.S. social and economic characteristics, and about the extent of the transportation system. For indicators that are highly seasonal, the current value of that indicator is compared to the value for the same time period in the previous year (e.g., April 2002 compared to April 2001). Otherwise, the tables show a comparison of the current value to a comparable preceding period of time (e.g., the data for the month of April 2002 compared to those of March 2002).
总页数：	CD-ROM
报告类型：	科技报告