There are four conventional metro lines and, as of 2008, 59 stations (not including premetro stations).
Most stations are underground, although some on lines 5 and 6 are at ground level.
On 4 April 2009, the connection at Gare de l'Ouest/Weststation that enables line 2 to form a circular line was put into service.
As a consequence, the metro network was significantly reorganised.
 The development plan for this change and related tram and bus network changes was approved by the Brussels Capital Region in July 2005.

As of 4 April 2009 the four lines are as follows: 
Line 1 from Gare de l'Ouest/Weststation to the west to Stockel/Stokkel at the east end (formerly part of line 1B);
Line 2 is a loop starting and ending in Simonis via the eastern side of the small ring road (an extension of former line 2 from Delacroix north-bound to Simonis);
Line 5 from Erasme/Erasmus to the south-west to Herrmann-Debroux to the south-east (combines parts of former lines 1A and 1B);
Line 6 from Roi Baudouin/Koning Boudewijn to the north-west to Simonis (including the loop of the newly extended line 2; combines the former line 2, the new connection, and a branch of the former line 1A).
There are four conventional metro lines and, as of 2008, 59 stations (not including premetro stations). Most stations are underground, although some on lines 5 and 6 are at ground level. On 4 April 2009, the connection at Gare de l'Ouest/Weststation that enables line 2 to form a circular line was put into service. As a consequence, the metro network was significantly reorganised.  The development plan for this change and related tram and bus network changes was approved by the Brussels Capital Region in July 2005.
As of 4 April 2009 the four lines are as follows: 
Line 1 from Gare de l'Ouest/Weststation to the west to Stockel/Stokkel at the east end (formerly part of line 1B);
Line 2 is a loop starting and ending in Simonis via the eastern side of the small ring road (an extension of former line 2 from Delacroix north-bound to Simonis);
Line 5 from Erasme/Erasmus to the south-west to Herrmann-Debroux to the south-east (combines parts of former lines 1A and 1B);
Line 6 from Roi Baudouin/Koning Boudewijn to the north-west to Simonis (including the loop of the newly extended line 2; combines the former line 2, the new connection, and a branch of the former line 1A).
Brussels Metro