Public Roads Vol. 69 No. 4

Weingroff, Richard F.; Capka, J. Richard; Scriba, Tracy; Seplow, Jennifer; Granda, Thomas M.; Thompson, Shirley; Hall, Megan; Moler, Steve; Sedor, Joanne; Kerenyi, Kornel; Jones, J. Sterling · 2006 · ROSA P / United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology

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Summary

This document is an issue of *Public Roads*, a bimonthly publication of the Federal Highway Administration (FHWA), published in January/February 2006. It is not a single research paper but a collection of articles addressing developments in federal highway policies, programs, and technology. The issue focuses on the 50th anniversary of the Interstate System, financing strategies for large infrastructure projects, regulatory updates, and demographic challenges in transportation. The lead article, "The Year of the Interstate" by Richard F. Weingroff, commemorates the 50th anniversary of the Federal-Aid Highway Act of 1956. It traces the history of the Dwight D. Eisenhower National System of Interstate and Defense Highways from its authorization in 1944 to its construction. The article highlights the evolution of Interstate design from standardized "cookie-cutter" approaches to context-sensitive solutions that address environmental and community concerns, citing examples such as the I-10 Papago Freeway in Phoenix and the I-35 Leif Erickson Tunnel in Duluth. It emphasizes the role of federal-state partnerships and the system’s impact on national defense, economic competitiveness, and daily mobility. Another major article, "Financing Megaprojects" by J. Richard Capka, examines the financial challenges of infrastructure projects costing $500 million or more. It notes that traditional pay-as-you-go methods are often insufficient for these "megacosts," leading agencies to explore public-private partnerships and new delivery mechanisms. The article cites the Woodrow Wilson Bridge, which relies on public funding, and the Trans-Texas Corridor, which utilizes private investment, as examples of diverse financing models. It also discusses legislative requirements under TEA-21 and SAFETEA-LU for megaprojects to maintain updated financial plans to ensure project completion. Additional articles address specific operational and safety issues. "Rule on Work Zone Safety and Mobility" outlines FHWA guidance for implementing regulations to improve safety during construction. "The Older Driver Comes of Age" discusses the transportation challenges posed by the aging U.S. population, noting that highway fatalities for those aged 65 and older are projected to double or triple by 2020 without intervention. "Mimicking Mother Nature" describes Washington State’s use of an engineered logjam to prevent flooding and improve fish habitat, while "Improving Freight Transportation" and "Energy Losses in Storm Drain Access Holes" cover industry coordination and hydraulic engineering studies, respectively. The significance of this issue lies in its comprehensive overview of the state of U.S. transportation infrastructure at a pivotal historical moment. It underscores the need for adaptive design, innovative financing, and targeted safety measures to accommodate demographic shifts and aging infrastructure. By blending historical reflection with current policy and technical guidance, the publication provides a framework for understanding how the transportation community must evolve to meet future demands while honoring the legacy of the Interstate System.

Key finding

The publication serves as an informational digest of highway policies, research developments, and historical reflections rather than a report of a specific scientific experiment or field study.

Methodology

review

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• regulatory evaluation

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• Applied Guidance: countermeasure evaluation
• Methodological Resource: dataset resource