摘要: |
This edition of the C&P report is based primarily on data through the year 2002, covering the first 5 years of the 6 years for which Federal highway and transit funding was authorized by the Transportation Equity Act for the 21st Century (TEA-21). The trends identified in this report reflect not only more recent data than the last edition, but also enhancements to the analyses based on ongoing work by the Federal Highway Administration (FHWA) and the Federal Transit Administration (FTA) to improve the estimation of the conditions and performance of highways, bridges, and transit and to forecast the future investment that will be required to maintain and improve this transportation infrastructure. While this Highlights section focuses on the TEA-21 period, the report also includes data from other years and comparisons to other periods (such as the two years since the last edition of the C&P report). |