The purpose of Bontal junction is twofold. One is to get the stock from Olten onto the main line. The other is to get to the Bustal traffic. The junction itself will be hidden underneath Bustdorf station. The junction itself is an electrical meeting of Olten, Leostadt station, the main line to Bonstadt station and the Bustal line. The cross-over when selected is powered from Olten, and when in the main line position, powered from the Bonstadt Secondary up & down controller.
A homemade overhead catenary system has been installed so that more modern equipment can be run "Under the wires"