| Main centres: | 1-3 business days |
| Regional areas: | 3-4 business days |
| Remote areas: | 3-5 business days |
A Policy on Geometric Design of Rural Highways (1965) offers a definitive exploration of rural highway geometry authored by the American Association of State Highway Officials (AASHO) during a formative period for U.S. roadway design standards. This eight-printing (1972) edition consolidates guidelines on alignment, cross sections, sight distance, superelevation and rural functional classificationintended for highway engineers, planners and state agencies. The manual emerged as a key reference for the "Blue Book" era and anchors the evolution of highway geometry in the mid-twentieth century.
Within its pages the book details design controls influenced by traffic volumes, vehicle characteristics, terrain and environmental issues. It addresses horizontal curve radii, vertical grade criteria, minimum widths, clear zones, and intersection geometry tailored to rural corridors. With its data tables, charts and illustrations, the work remains valuable for historical insight into geometric design practice and the development of subsequent editions by the successor organisation American Association of State Highway and Transportation Officials.
For infrastructure libraries, professional collections or heritage engineering archives, A Policy on Geometric Design of Rural Highways (1965) stands as a landmark volume capturing the standards and thinking of its time. Its enduring relevance lies in showing how the foundational criteria for rural highway geometry were set and applied.
