FOR BETTER ROADS
THE ROUGHOMETER TEST The Missouri State Highway Department has put into service a device that measures and records unevenness of paved surfaces. Galled a aroughometer,,, it is one of six machines of its kind in the United States. It is expected to provide useful information for planning and building future highways. It will measure comparative roughness resulting from age, weather and varying traffic conditions. The device consists of an automobile wheel centred in a steal frame which is towed behind a truck at 20 miles per hour. The up an down action of the tyre is electrically translated into a graph which indicates surface variations.
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Taupo Times, Volume I, Issue 23, 18 June 1952, Page 5
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108FOR BETTER ROADS Taupo Times, Volume I, Issue 23, 18 June 1952, Page 5
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