Highway Needs
An Evaluation of DOT's Process for Assessing the Nation's Highway Needs Gao ID: RCED-87-136 August 7, 1987In response to a congressional request, GAO evaluated the Department of Transportation's Highway Performance and Monitoring System (HPMS) to determine the reasonableness of its highway needs assessment.
GAO found that: (1) the data collection procedures that the Federal Highway Administration (FHwA) and states used in preparing HPMS were statistically sound; (2) FHwA did not test the model's sensitivity to changes in key input data; (3) although FHwA scheduled a calibration test to determine how closely past and future needs paralleled actual capital investments, it did not develop a test methodology or establish a test completion date; (4) FHwA did not include sufficient information for model users in its technical manuals; and (5) the report presented total highway needs amounting to $315 billion through the year 2000, but it did not indicate that about one-half of that amount represented existing backlogged needs.
RecommendationsOur recommendations from this work are listed below with a Contact for more information. Status will change from "In process" to "Open," "Closed - implemented," or "Closed - not implemented" based on our follow up work.
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