The verkeerscentrum maps the traffic density (the traffic 'volume', or number of cars) in Flanders, Belgium for the calendar year 2018 (mean, weekdays). The density ranges between 0-20k, 20k-50k, 50k-80k, 80k-100k, and 100k-140k. Highest density is identified at the ring of Antwerp and the ring of Brussels.
The 'verkeerscentrum' is managed by the Flemish government.
You can access the website/create the map overview via this link: http://indicatoren.verkeerscentrum.be/vc.indicators.web.gui/indicator/index.