Brussels premetro

The premetro tunnels have been built to allow for eventual upgrade to heavy metro, so most of the platform is high, and is connected to the street (at least in the upward direction) by escalator.

At some stations, lifts have been installed, but there is a cutout section taking the level down to one foot above ground to board the trams.

The three steps this entails make life difficult for passengers with baby buggies or suitcases, even though the new low-floor trams are accessible to wheelchair users.

[1] Growing traffic congestion led to plans to build reserved tracks for trams, and in the city centre to put them in tunnel.

The somewhat shorter Line 25 also runs the Greater Ring premetro, but with different termini at both ends, and the southern terminus connecting to Boondael/Boondaal railway station.