It runs from the Upper Rhine Plain near Rastatt for about 114 kilometres (71 mi) through the northern Black Forest to Rottweil.

In 2001 the section from Rastatt to Gaggenau was widened into a dual carriageway as far as Schloss Bad Rotenfels (Landesakademie) and a further widening to the centre of Gaggenau is planned.

The B 462 runs through the following larger settlements: Rastatt, Kuppenheim, Gaggenau, Gernsbach, Weisenbach, Forbach, Baiersbronn, Freudenstadt, Alpirsbach, Schenkenzell, Schiltach, Schramberg, Rottweil.

As of 2018, commissioning in 2020 and dismantling of the facilities is scheduled after three years of testing.

After two "E-Highway" pilot projects on motorways is in Germany the first test on a public road.