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Keywords:
ROADS,
DEVELOPMENT,
AGRICULTURE,
DESIGN,
CONSTRUCTION,
MAINTENANCE,
VALUE,
RURAL,
TRAFFIC,
DENSITY,
ACCESS,
STANDARDS,
ECONOMICS,
FINANCE,
LABOUR,
COSTS,
SOILS,
EARTH,
CARRIAGEWAYS,
WIDTH,
PROJECTS,
VEHICLES,
SUDAN,
AFRICA
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© Thomas Telford and ICE
1987
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