一项政府研究建议建设一个33,920英里的全国公路系统，国会通过了1944年的《联邦援助公路法案》，该法案要求制定严格的、集中管控的设计标准。
A government study recommended a national highway system of 33,920 miles, and Congress passed the Federal-Aid Highway Act of 1944, which called for strict, centrally-controlled design criteria.
设计新的公路收费系统的热潮正在全世界兴起，已不只包括高速公路、桥梁和隧道，甚至包括整个城市中心与国家公路网络。
Elaborate new toll systems are popping up all over the world. And it is no longer just highways, Bridges or tunnels that get tolled, but entire city centres or national road networks.
建筑工程师设计建造我们国家的基础设施，这其中包括公共建筑，公路，供水系统，污染控制系统等。
Civil engineers design and build our nation's infrastructure, from public buildings and roads to water supply and pollution control systems.
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