Samenvatting
Traffic counts in the province of Friesland held during 1973 are reported and traffic concentrations as well as vehicle speeds are measured
Traffic counts in the province of Friesland held during 1973 are reported and traffic concentrations as well as vehicle speeds are measured
Leeuwarden, Provinciale Waterstaat van Friesland, 1974, 15 p. + 3 app., fig., graph., tab.
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