N23 road (Belgium)

N23 road sign

The N23 is a short national highway in the Brussels Capital Region, Belgium. It is one of the busiest roads within the capital with daily gridlock during the rush hours.

The road consists originally of two separate sections that were once part of the European Route 5 (E5, now E40) through Brussels, separated by the small ring (N0/R20). It is the only highway in Belgium with two kilometer-zero points, one for the eastern branch and another for the western branch.

As with all national roads and motorways, ownership was transferred to the regional government in the 1990s. The N23 road remains unsigned as signage within Brussels never shows any road numbers.