取代1970年《公路景观和环境设计指南》，该指南扩展到包括所有交通方式以及景观考虑与交通改善的相互作用。改善景观和环境设计的基本参考。

Supersedes the 1970Guide for Highway Landscape and Environmental Design, expanded to include all modes of transportation and interaction of landscape considerations with transportation improvements. A basic reference to improve landscape and environmental design.