NOTES: Investment data here are in terms of calendar years unlike the other data this section, which are in terms of fiscal years. Data include all modes except pipeline; state and local rail data were only available from 1993-2000 when this report was prepared. These transportation investment data are not comparable to those in earlier editions of this report because of changes in methodology and data sources. Data may not add to total because of independent rounding.
SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, "Transportation Investment," forthcoming.