Samenvatting
The year intensities of traffic are given on 8 permanents counting posts in the province of Groningen during 1970. The increase of traffic in 1970 to 1965 is about 10%.
The year intensities of traffic are given on 8 permanents counting posts in the province of Groningen during 1970. The increase of traffic in 1970 to 1965 is about 10%.
Groningen, 1970, 30 p., graph., krtn., tab., tekn.
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