What disruption to expect on Tuesday’s union National Day of Action?

Brussels local transport MIVB

Severe disruption is expected on the metro, tram and bus network in Brussels. "The exact extent of the disruption cannot be predicted at the moment," the company says. "We will make every effort to ensure at least part of the service and inform our passengers about the situation in real time."

The travelling public will be able to monitor the situation via the MIVB website and app, MIVB screens at stops and stations, on Facebook and on the MIVB's new WhatsApp channel.

At the same time, the MIVB is encouraging people to seek alternative solutions for their travel needs in Brussels on Tuesday if possible.

Flemish transport company De Lijn

De Lijn's services will be disrupted across Flanders due to the union action: a third of De Lijn's buses will not run as can be seen from the company’s alternative services timetable announced by the company earlier.

De Lijn expects even greater disruption on its tram network: more than half of all trams, some 57 per cent, will not run on Tuesday.

Disruption will be greatest in Ghent and Antwerp. On city lines, both buses and trams, only a third of the scheduled journeys will operate.

In West Flanders, 2 out of 3 drivers will set out on Tuesday, although that percentage is slightly lower for the coastal tram (at around 60 per cent).

In Limburg, 2 out of 3 drivers will work, although De Lijn expects more inconvenience in city centres than on the regional lines.

In Antwerp province too, 2 out of 3 drivers will set out, with slightly more disruption expected in the city of Antwerp.

In Flemish Brabant, 60 per cent of drivers are expected to work.

In East Flanders, three quarters of services will operate with more disruption in Ghent.

Passengers eager to take a De Lijn bus or tram on Tuesday can use the route planner on the website or De Lijn's app now to check services: only the journeys that will operate are listed there.

Brussels Airport Zaventem

"Due to the national industrial action, in which some of the handling and security service providers are participating, we expect a major impact on our airport operations," the Brussels Airport website reads. "We regret the inconvenience caused by this action."

"In order to carry out our airport operations in the best possible way and continue to guarantee the safety of our passengers and staff, we have decided, in consultation with the airlines, to cancel a number of departing flights. "

The airlines are contacting passengers whose flights are affected to look for a solution.

Charleroi airport Brussels South

All departing flights are cancelled Brussels South Charleroi Airport says. The departures are being cancelled because there will not be enough staff "to run operations in complete safety".

For arriving flights, there is basically no problem. However, cancellations of departures could mean that arrivals are also cancelled.

Belgian Rail NMBS

Fewer trains will run from Monday 28 April at 10pm until the last train on Tuesday evening.

6 out of 10 InterCity trains will run. Half of all Local and Suburban trains will operate.

Most  P trains, i.e. commuter services, are not expected to run, the NMBS says.

Belgian Rail advises travellers to regularly check the journey planner on the NMBS website or via the NMBS app, starting the day before your departure. Train offerings will be visible 24 hours in advance.

Information about international trains can be found on the NMBS International website .