Overview
- National file severity rose about 3% year over year, according to ANWB analysis of TomTom traffic data.
- German border controls drove the biggest increases at eastern crossings, with Drenthe up 85% at the A37 Zwartemeer and Overijssel up 19% at the A1 De Lutte, while Gelderland rose 9% at the A12 and Limburg 3% mainly in holiday periods.
- Daytime and weekend traffic worsened by roughly 15%, the morning rush eased slightly, and the evening peak intensified, especially on Mondays.
- Rotterdam and Zuid-Holland saw declines tied to new links, including a 56% drop on the A15 toward Europoort after the A24 Blankenburgverbinding, improved A20 flow with the new A16 connection, and large relief near Leiden after the Corbulotunnel.
- Chronic bottlenecks persist as the A27 Utrecht–Gorinchem tops the ANWB list and is set for widening with disruption through 2031, while new pressure points include the A4 near Den Hoorn–Den Haag Zuid, and heavy works on the A10 and Zeeland routes pushed regional increases.