http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
This book brings together information on road planning, location, design, construction and maintenance to support environmentally acceptable operations in tropical forests. It highlights the challenges of road operations in the tropics, includes techniques that have been shown to be successful, and discusses newer technologies. It is intended as a reference book for the forest engineer and others interested in the planning and management of tropical forests. Numerical examples are provided to provide clarity for interpreting graphs, procedures, and formulas. The book covers the various facets of road management from design objectives through practices to control environmental impacts.
Forest Roads in the Tropics -- Road Standards -- Economic Basis for Forest Road Construction -- Route Selection -- Road Building Materials -- Forest Road Construction -- Crossing Swamps and Wetspots -- Stream Crossings -- Forest Road Maintenance -- Road Equipment and Machinery -- Environmental Protection -- Concluding Comments.