In station Lutherstadt Wittenberg-Piesteritz the obsolete existing interlocking system is replaced by an electronic interlocking. The station of the industrial railway of the nitrogen plant is already operated by an elctronic interlocking of a different supplier. All routes leading to or from the industrial railway are safed by both interlockings. Dependencies are implemented by an adaptation of routes materialised as relay interface.
The special-purpose solution of the relay interface had to be assessed by an expert opinion. An inspection report was compiled, including improvements of the circuit.
At test runs was shown, that the operation follows generally accepted codes of practice. Finally an independent expert analysis by Prof. Dr.-Ing. Jochen Trinckauf was conducted and delivered.