The Guide provides broad statements and guidelines for highway landscape and environmental design factors considered to be properly within the scope of the Committee's interests and responsibilities. The Guide's purpose is that of developing quality, character and consistency in highways in general conformity with accepted landscape architectural principles and practices. It is intended to be used by person responsible for designing, developing and maintaining the highway landscape and environment.

Basic principles : "Sustainability" in context -- Principle 1 : Keep healthy sites healthy -- Principle 2 : Heal injured soils and sites -- Principle 3 : Favor living, flexible materials -- Principle 4 : Respect the waters of life -- Principle 5 : Pave less -- Principle 6 : Consider origin and fate of materials -- Principle 7 : Know the costs of energy over time -- Principle 8 : Celebrate light, respect darkness -- Principle 9 : Quietly defend silence -- Principle 10 : Maintain to sustain -- Principle 11 : Demonstrate performance, learn from failure -- Sustaining principles, evolving efforts.

Notebook 1. Identification of transportation alternatives -- Notebook 2. Social impacts -- Notebook 3. Economic impacts -- Notebook 4. Physical impacts -- Notebook 5. Organization and content of environmental assessment materials -- Notebook 6. Environmental assessment reference book.