Beschrijving van de methodiek ter bepaling van de landelijke gemiddelde snelheidsniveaus op autosnelwegen en de presentatie van deze gemiddelde snelheden.

At May 1, 1988 a differentiated system of speed limits on motorways was introduced in the Netherlands. A method to measure the actual average speed levels and the present the results was developed. The detection was made by loop measurements. The method is described and an example of the results is given.