A file is a collection of related records
Rijkswaterstaat in the Netherlands is in charge of gathering and analyzing traffic data from the primary road network. So-called service providers like the ANWB and the Traffic Information Service are in charge of distribution (VID). The operations are handled by the Netherlands Traffic Center (VCNL), which is based in Utrecht, within Rijkswaterstaat.
The collection process was primarily manual up until July 1, 2005, when it underwent a significant modification. A novel system that collects information (intensity and speed) from detection loops in the road surface has been put into action and may be used to instantly produce information about files. In the Netherlands, there are many freeways with detection loops.
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