So, you are sitting on the platform waiting for the next train to Delft, only to hear the voice of an NS official over the loudspeaker informing you that due to the summer service roster, the train you are waiting for might not appear and if it does it might be on another platform.

The voice then advises you to check its website for further details. Which is a lot of use if you are waiting for your train without a mobile internet connection. But hey, this is the Netherlands in mid-July when everything grinds to a semi-halt. The trams and buses have also cut services, sorry, adopted summer timetables.
Try getting a plumber or a builder in the summer and you will probably find they have gone off on the Bouwvak, or building holiday, the four week period when everyone in the construction trade heads for the Med.
You may even find your local fishmonger closed for a few weeks. Even the newspapers all introduce summer schedules, which means less to read. So has everyone in the entire country headed for a caravan in Bakkum or the Costas?
Rush hour is no less busy, the supermarket queues are not shorter, offices still have to be staffed. For most of us, life goes on as normal. Well at least it would do if you could rely on the train turning up and get hold of a plumber to mend a leaking drain.