The whole line from Busenbach to Pforzheim was initially built to 1,000 mm (3 ft 3+3⁄8 in) metre gauge, later the section from Busenbach to Ittersbach was rebuilt to 1,435 mm (4 ft 8+1⁄2 in) standard gauge and the Pforzheim Light Railway was closed.

Technical problems and a lack of thermal coal forced the BLEAG in 1917 to abandon electrical service on the branch line from Busenbach and later to remove the overhead wiring.

During the Great Depression, the BLEAG came under pressure and therefore it abandoned the unprofitable operations between Busenbach and Ittersbach in early 1931.

Unlike the neighbouring Alb Valley Railway, the line to Ittersbach by AVG was not upgraded for full operations, but instead it was temporarily closed down on 14 November 1964.

It was not until almost two years later, on 30 June 1966, that the section to Langensteinbach Süd was reopened with standard gauge and electrified at 750 Volt DC.

In 2011, a short double track section was also built between Langensteinbach and the newly created station of Schießhüttenäcker.

Turning loops at Langensteinbach St. Barbara and Ittersbach Rathaus enable trains to be reversed.