Waterloo is also the starting point of the partially built but unused Centenaire line.

Starting from Waterloo is a short track section running to the North and surfacing north of the Jules Hiérnaux Square, which would have been the starting point of pre-metro lines to Lodelinsart and Gosselies on one side, and Ransart and Heppignies on the other side.

The station features an extensive track network, allowing light rail vehicles to pass the station and reverse the travel direction by entering it from opposite direction (first bypassing it by a passing loop) or by travelling back after departing the station using a passing loop.

On the initial project plan for the Charleroi Pre-metro, the Waterloo station was called Nord (French for North).

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