Conditions and Performance

Exhibit 7-4: Cost to Improve Highways and Bridges, 2001-2020, Distribution by Improvement Type

Exhibit 7-4 is a series of six pie charts. The first three show the cost to maintain highways and bridges, 2001-2020, by improvement type. In the first pie chart-for rural arterials and collectors-70.6 percent of costs go to system preservation, 20.5 percent to system expansion, and 8.9 percent to system enhancements. In the second pie chart-for urban arterials and collectors-59.4 percent goes to system expansion, 33.0 percent to system preservation, and 7.6 percent to system enhancements. And in the third pie chart-for the total of all functional systems-46.7 percent goes to system expansion, 45.4 percent to system preservation, and 7.9 percent to system enhancements. The second three pie charts show the cost to improve highways and bridges, 2001-2020, by improvement type. In the first pie chart-for rural arterials and collectors-72.3 percent of costs go to system preservation, 19.0 percent to system expansion, and 8.7 percent to system enhancements. In the second pie chart-for urban arterials and collectors-54.3 percent goes to system expansion, 38.1 percent to system preservation, and 7.6 percent to system enhancements. And in the third pie chart-for the total of all functional systems-48.8 percent goes to system preservation, 43.3 percent to system expansion, and 7.9 percent to system enhancements.

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