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Conditions and Performance Report Chapter 7Future Capital Investment Requirements |
Conditions and Performance Chapter Listing Conditions and Performance Home Page Economics-Based Approach to Transportation Investments Highway Investment Requirements Bridge Investment Requirements Combined Highway and Bridge Investment Requirements Transit Investment Requirements
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Highway Investment BacklogAs defined in this report, the highway investment backlog represents all highway improvements that could be economically justified to be implemented now, based on the current conditions and operational performance of the highway system. To calculate the backlog, HERS has been modified to evaluate the current state of each highway section before projecting the effects of future travel growth on congestion and pavement deterioration. Any potential improvement that would correct an existing pavement or capacity deficiency, and that has a benefit/cost ratio greater than or equal to 1.0 would be considered to be part of the current highway investment backlog. Based on this "Year 0" analysis, HERS estimates that a total of $166.7 billion of investment could be justified based solely on the current conditions and operational performance of the highway system. Note that the backlog represents a one-time cost, rather than an annual value. Note also that this figure does not include rural minor collectors, or rural and urban local roads and streets, since HPMS does not contain sample section data for these functional systems. Approximately 72 percent of the backlog is in urban areas, with the remainder in rural areas. About 42 percent of the backlog relates to capacity deficiencies on existing highways; the remainder are pavement deficiencies. The backlog figure does not contain any estimate for system enhancements or for the construction of new roads and bridges.
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