WEBWiKo Werkzeuge und Methoden zur Erstellung kleinräumiger Bevölkerungsprognosen und Wirkungsszenarien


The demographic development has for some time led to increasing differences in spatial development, even within urban regions. In the Bremen region, both growing and shrinking areas are to be found. The effects are in part considerable: growing residential space requirements are opposed to vacancy and overuse. The need for social infrastructure is thus as different as the need for settlements. This small-scale juxtaposition of growth and shrinkage presents the region with far-reaching challenges, which force adjustments to the analysis and planning practices.

This is precisely where the project WEBWiKo sponsored by the German Federal Ministry of Education and Research (BMBF) within the framework of the "Kommunen innovativ" program is based. The project has set itself the goal of testing new methodological approaches and solutions for the foundations of planning action to ensure the protection of municipal life. For this purpose, OFFIS, under the leadership of the Kommunalverbund Niedersachsen / Bremen eV, is working together with the Statistical Office of the City of Bremen, the regio Institute for Regional Development and Information Systems, as well as the ILS Institute for Regional and Urban Development Research, in order to develop new methods and tools for the preparation of small-scale population projections and effect scenarios.

A small-scale data infrastructure is to be set up in five example communities in the urban region of Bremen. Based on this, a new prognosis and scenario tool will enable planners of the municipalities to forecast the demographic development and their impacts with changeable assumptions. The forecast results are then presented interactively in a dashboard application.


Scientific Director

Prognosen im Bevölkerungsraster für die interkommunale Kooperation – ein Experiment im Reallabor

Specht, Sebastian; Blohm, Kolja; Handtke, Thomas; Wette, Laura; AGIT - Journal für Angewandte Geoinformatik; 07 / 2019

Digitalisierte Bevölkerungsprognosen im Raster

Specht, Sebastian; Kramer, Bernd; Innovative Verwaltung; 11 / 2019

Kleinräumige Bevölkerungsdaten und -prognosen im Raster für die Praxis interkommunaler Kooperation

Specht, Sebastian; Intergeo 2019 / 67. Deutscher Kartographie Kongress.; 09 / 2019

Großer Schaden im kleinen Kästchen?

Hein, Andreas; Lüpkes, Christian; Specht, Sebastian; RaumPlanung - Fachzeitschrift für räumliche Planung und Forschung; 01 / 2021

A Cartography of the Effects of Disclosure Control on Small-scale Population Grids in the Context of Municipal Data Requirements in Northwest Germany.

Specht, Sebastian; 30th Annual Geographical Information Science Research UK (GISRUK), Liverpool, United Kingdom, 5th - 8th April 2022; 2022

Kommunalverbund Niedersachsen/Bremen e.V.
Statistisches Landesamt Bremen
regio GmbH - Institut für Regionalentwicklung und Informationssysteme
ILS – Institut für Landes- und Stadtentwicklungsforschung gGmbH


Start: 01.04.2017
End: 31.01.2020

Source of funding