Abstract: A computer-controlled interlocking system for a railway installation which comprises a plurality of sections, each of which sections has an associated plurality of elements, comprises a plurality of section computers to be respectively associated with the sections and arranged to be fail-safe in terms of signaling technology. Each section computer is provided with a respective program memory which, in turn, is provided with programs relating to the processing of requirements for control, both individual and in relation to routes, of all the associated plurality of roadway elements independently of their presence an arrangement in the relevant section. Each section computer also has a write/read memory arranged for receiving and storing installation-specific data relating to the railway installation topography and the respective element characterization in terms of type of element, element program, element designation and the arrangement of the elements relative to neighboring elements.