Author(s)

J. Backstrom

Abstract

BIS is a computer system for storing and retrieving information about the Swedish rail infrastructure. BIS consists of different, independent subsystems using a common reference system for positioning objects along the track. The development of the system started in 1988 with the separation between The National Rail Administration (Banverket) and The Swedish State Railways (SJ). In 1990 the development of the reference system was finished and the input of the railway network started. Since then other subsystems have been developed and connections to other systems have been created. BIS-ref describes the rail network as nodes and links Permanent way rail, sleeper, ballast and insulation Bridges technical information of railway bridges Geometries track geometry in plane and profile Sig

Keywords