As per reports, ProRail is carrying out engineering works on the train safety system at Rotterdam Centraal on 13 June and 14 June.

• Services on the Hogesnelheidslijn (HSL) high-speed line to Schiphol Airport and Breda will also be suspended during this period.
• The following routes will be affected: Rotterdam Centraal – Delft Campus, Rotterdam Centraal – Gouda, Rotterdam Centraal – Zwijndrecht, and the HSL route between Rotterdam Centraal and Breda/Schiphol Airport.
• Replacement bus and metro services will be in operation. Passengers travelling between Rotterdam Centraal and Den Haag Centraal are advised to take Metro E to Beurs, then Metro A/B/C to Schiedam Centrum, followed by a Nederlandse Spoorwegen (NS) replacement bus to Delft Campus, and from there the train to Den Haag Centraal.
• Passengers travelling between Rotterdam Centraal and Gouda are advised to take the metro via Beurs to Schiedam Centrum, then the NS replacement bus to Delft Campus, and from Delft Campus the train via Den Haag HS to Gouda. An alternative is Metro D/E to Beurs, Metro A/B/C to Capelsebrug, and then the NS express bus to Gouda.
• Passengers travelling between Rotterdam Centraal and Dordrecht are advised to take Metro E to Beurs, then Metro A/B/C to Capelsebrug, and from Capelsebrug the NS express bus to Dordrecht.
• NS tickets are valid on the metro at the following stations: Schiedam Centrum, Slinge, Beurs, Rotterdam Blaak, Capelsebrug, Rotterdam-Alexander, and Rotterdam Centraal. NS tickets are valid on Metro Line E between Rotterdam Centraal and Slinge, but not between Den Haag Centraal and Rotterdam Centraal.
• Replacement bus services are not free of charge. Passengers are required to check out when leaving the train, check in before boarding the replacement bus, and check out again upon leaving the bus.