01019cam a2200193 i 4500020001500000082001600015245019400031260015100225300003500376500010700411500002000518526003700538650006500575650001300640710004500653942001200698999001900710952009600729  a030902698900a625.72bNAT00aGeometric design standards for low-volume roads =cModelos de diseño geométrico para caminos de bajo volumen = Normes de dimensionnement géometrique pour routes à faible capacité.  aWashington :bTransportation Research Board, Commission on Sociotechnical Systems, National Research Council, National Academy of Sciences,c1978.  axxiv, 297 p. :bill. ;c28 cm.  a"Prepared under contract AID/OTR-C-1591, project 931-1116, U.S. Agency for International Development."  aIncludes index.  a0b0c0d625_720000000000000_NAT 0aLow-volume roadsxDesign and constructionxStandards.943633 0aMCE93792 aNational Research Council (U.S.).920017  2ddccBK  c547437d547437  00102ddc4070aMCEbMCEd2014-07-15l0o625.72 NATpMCE-41496r2014-07-15w2014-07-15yBK