The main railway operator in The Netherlands, the NS, has announced that from Saturday their trains would be running a ‘basic service’ schedule. This means that most stations will only have two trains per hour, except in cases where there was only one train per hour – that will stay the same. Most trains will be sprinters (stop at every station) with only a few important north/south and east/west lines having intercitys (stop at important stops only).
Special basic service (information in Dutch)
This was expected – on Friday public transportation usage dropped 50% in comparison with a normal day. From Monday there were 85% less travellers.

The picture above is of the tram tunnel underneath the Grote Marktstraat this past Saturday afternoon. There’s almost no one on the other side, which is unheard of even late at night.
HTM, the bus and tram service of The Hague has also published the changes that have occurred or will occur (information in Dutch). On Friday HTM began blocking off the first door for all buses and all trams where it was relevant. Travelers need to use a different door to enter and exit, in the hopes that contact between travelers and drivers is as limited as possible.