Papers sponsored by Committee on Geometric Design, Committee on Mineral Aggregates, and Committee on Low Volume Roads. "Editor: Naomi Kassabian"--Page [ii].

On the optimum level of effort for evaluating low-volume rural road projects in developing countries / Charles G. Vandervoort -- Recent developments in rural road design in Australia / C.J. Hoban -- Economic analysis of broad-based dips versus aluminum pipe culverts in low-volume roads / Ronald W. Eck, Perry J. Morgan -- Effects of country highway management practices on maintenance costs for unpaved roads in Indiana / John D.N. Riverson, Kumares C. Sinha, Charles F. Scholer -- Commentary driving applied to safety evaluation of low-volume roads / Bob L. Smith, David K. Murdock -- Waterbound macadam as a base and as a drainage layer / Emile Horak, Ralph H.H. Triebel -- Cost-estimating model for low volume roads / Fong L. Ou, Colburn D. Swarthout.