"Purpose With increasing transportation needs@ funding limitations at both the federal and state levels@ and the high cost of transportation improvement projects@ it is important to have a toolbox of techniques that support accurate estimation of project costs. There is no single ""right way"" to prepare an estimate@ and these guidelines are not intended to promote one technique over another. The purpose of this guide is to provide a nationally recognized and accepted set of cost estimation and cost management practices that each DOT can draw from and use appropriately to its situation."
EST-2013由AASHTO - American Association of State Highway and Transportation Officials 发布于 2013-01-01,并于 2013-03-15 实施。
* 在 EST-2013 发布之后有更新,请注意新发布标准的变化。
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