The ability of a soil to support military vehicular traffic is usually determined by using the US Army cone penetrometer. The cone index obtained from this method may be used in the AMC-74 mobility model. Moisture is an important factor in the cone index of all types of soil. Experiments indicate that the electrical resistivity of a soil is related to its moisture content. This paper describes some of these experiments and introduces a technique for aerially obtaining and machine processing soil resistivity data for the mobility model.
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