Toward More Flexible Design

The federal-aid highway program has evolved, especially in the design arena. Engineers need to consider standard roadway characteristics while accounting for economic, environmental and social impacts. In response to the need for greater flexibility in the design process, the Federal Highway Administration (FHWA) recently proposed revising the controlling criteria in its highway design policy. FHWA has proposed retaining only two controlling criteria for National Highway System roadways with a design speed of less than 50 miles per hour: design speed and design loading structural capacity. This will allow engineers working on multimodal projects to develop unique solutions that address the specific circumstances of each project.


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Filing Info

  • Accession Number: 01598094
  • Record Type: Publication
  • Files: TRIS, ATRI, USDOT
  • Created Date: Apr 12 2016 11:58AM