The tram network in Bochum and Gelsenkirchen has a route length of almost 85 kilometres. It has a track gauge of 1,000 millimetres (metre-gauge) and is connected to the Essen metre-gauge network by the line 107 (Gelsenkirchen Hbf - Essen-Bredeney).
A special feature is the light rail line U35 (Bochum-Querenburg - Herne), which is the only route in standard-gauge and runs mostly underground. It has no track connection to other lines.
The network is operated by → BOGESTRA (Bochum-Gelsenkirchener Straßenbahn AG)