It’s a very curvy weekend at NS, and that weekend already starts today! #Streckensammeln
Today and tomorrow the trains to Tiel, Groningen and Leeuwarden that usually depart from Den Haag Centraal depart from Den Haag HS, and thus take the Binckhorstboog between Den Haag HS and Voorburg, that does not have regular service.
Then on Saturday and Sunday an half hourly intercity service between Den Haag HS and Utrecht Centraal is running via the Blijdorpboog between Schiedam Centrum and Rotterdam Noord.
Also on Saturday and Sunday there are two IC trains an hour, not completely half hourly between Rotterdam Centraal and Almere Centrum (from/to Groningen/Leeuwarden) that run via Amsterdam Bijlmer ArenA, using the Bijlmerbogen between Amsterdam Bijlmer ArenA and Diemen Zuid.
As Dutch train spotters like to say: DEUVM.