Information System City and Environment (ISU5) - Spatial reference - from 2021

Reference geometry of the information system city and environment (ISU). The ISU5 areas are closely related to the "Statistical Blocks of the RBS", but differ in the block delimitation to the street land and by the formation of block sub-surfaces as a level below the block level. They are updated annually on the basis of statistical blocks and changes in use. The more comprehensive 5-year update can be found under "Information System City and Environment (ISU5) - Spatial Reference 2020".