修复所有这些桥梁会，美国联邦公路管理局预测，耗资数百亿美元。
Fixing all those Bridges would, the Federal Highway Administration predicted, cost tens of billions of dollars.
美国联邦公路管理局发布报告，探讨了工程对策在改善自行车和行人交通安全方面的效能。
The U. S. Federal Highway Administration has released a report that explores the effectiveness of engineering countermeasures in improving safety and operations for pedestrians and bicyclists.
美国联邦公路管理局(FHWA)发布了行人安全研究与技术转让15年计划。
The U. S. Federal Highway Administration (FHWA) has released a 15-year plan for pedestrian safety research and technology transfer.
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