Below the square, Montgomery metro station serves as the first station on the eastern branch of line 1 of the Brussels Metro.

The station is also a stop for trams 7, 25, 39 and 44, while tram 81 and various Brussels Intercommunal Transport Company (STIB/MIVB) bus services stop at surface level.

At surface level, the traffic intersection takes the form of a multi-lane roundabout.

Traffic not turning is routed through two tunnels; the Tervuren Tunnel takes vehicles travelling on the Avenue de Tervueren/Tervurenlaan under the junction, while traffic on the Greater Ring (from the Boulevard Brand Whitlock/Brand Whitlocklaan and the Boulevard Saint-Michel/Sint-Michielslaan) is routed away from the intersection via the Montgomery Tunnel.

The centre of the roundabout is occupied by a large fountain, while a statue of Montgomery stands on the Avenue de Tervueren facing it.