According to ILT, the restrictions have been introduced because of problems with activating track circuits. Recently two G2000s were lost to the signalling system while running singly, one between Europoort and Maasvlakte and the other between The Hague HS and The Hague Moerwijk. On June 3 a G1206 was also lost by traffic control between Europoort and Maasvlakte.

ILT has now stipulated that G2000 and G1206 diesel locomotives will only be permitted to run in formations with at least eight axles. How long the situation will persist, and whether restrictions will be lifted is unclear. ILT is investigating whether the fault originated in the infrastructure or on the locomotives.

Both types have operated for more than 10 years on the Dutch network.