A signal failure at Moordrecht since 04.00 on 4 May has stopped all train services between Utrecht and Den Haag, ProRail said, leaving travellers facing disruption during the morning commute.
The contractor is on site and investigating the fault, and ProRail warned that the incident will have consequences for the morning rush. For now no trains are running on the section between Utrecht and Den Haag; passengers have been advised to consult a travel planner before leaving and to seek alternative routes.
The timing and the stretch of line affected underline the immediate impact: the fault began at 04.00 and remains unresolved while crews work at the location. ProRail provided the travel-advice instruction that commuters should check planners and adjust their journeys, and the contractor is attempting to identify and repair the cause as quickly as possible.
Signals are a core safety mechanism on the Dutch rail network, and when a component fails a signal will automatically switch to red. The failure is localised at Moordrecht, and the precise cause was still under investigation at the time of publication; that absence of a clear explanation is why trains remain halted until technicians confirm the system is safe to run.
The lack of a confirmed cause is also the point of friction in the response: crews are on site and working, but until they diagnose what went wrong they cannot restore normal operations. That automatic safety response prevents trains from running on the affected stretch, which is why ProRail expects knock-on effects to the morning timetable even as technicians try to repair the defect.
Weather conditions complicate the morning for travellers. The national meteorological institute, KNMI, said visibility can vary sharply over short distances because of mist, with visibility reduced to around 300 metres in places; the dense mist is expected to clear in the first half of the morning. Commuters planning to change to buses, trams or cars should factor in that pockets of poor visibility may slow surface transport as well.
Looking beyond the morning, the KNMI forecast notes that inland areas can expect local showers in the afternoon with a risk of thunder and periods of heavy rain. Bevrijdingsdag will bring especially wet spells in the southeast. That combination of lingering fog this morning, potential heavy rain later and an ongoing signal investigation increases the chances of extended disruption through the day.
Practical steps travellers can take are simple and immediate: check a current travel planner before leaving — including web and app services such as nrc and other providers — and allow extra time for journeys. ProRail and the contractor on site are working to find and fix the cause; until they do, the automatic safety setting that holds signals at red means the stretch between Utrecht and Den Haag will remain closed to trains and delays should be expected in the morning peak.
