Ideas AASHTO’s Green Book 8 Will Reflect Shifts Toward Multimodal Transportation The future 8th edition of A Policy on Geometric Design of Highways and Streets (Green Book 8) will reflect the dramatic evolution of the nation’s… AASHTO’s Green Book 8 Will Reflect Shifts Toward Multimodal Transportation Open Sharing Options Share: Share on Facebook Share on Twitter Share on LinkedIn Share via Email Close Sharing Options