This paper provides estimates of travel speeds, fuel consumption, tyre tread wear and engine oil consumption rates for six representative vehicle classes of the South African vehicle population on different types of rural roads in South Africa for use in macroscopic analysis during the early phase of road planning. The vehicle classes are: cars, light petrol-driven vehicles other than cars, light goods vehicles, medium-sized goods vehicles, heavy goods vehicles and buses. Measured and estimated travel speeds, fuel consumption, tyre tread wear and engine oil consumption rates on different paved and unpaved rural road types in flat, rolling and mountainous terrain are supplied. In addition, the results of experiments on relatively flat roads that have winding horizontal alignments and on relatively straight roads located in rolling terrain are also supplied. Keywords: Fuel consumption, oil consumption, rural roads, road planning, road vehicle classes, topography, travel speed, tyre tread wear

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