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References >Urban/Infrastructure/Environment >Reconstruction of Witten town centre, Germany
reconstruction of Witten town centre, Germany

central decisions

The complexity of project tasks required organisation, which was completely new for the client. The first essential step was the formation of a project control team by DIEDERICHS, who was empowered to give instructions, independent of local goverment departments. The control team was supported by competent specialists and empowerd with the authority to decide. DIEDERICHS acted here as representative for the management.

The project group successfully co-ordinated the responsible local government departments, the suppliers and waste management representatives, such as Telekom and Bochum-Gelsenkirchen tramway company as applicant for subsidies. DIEDERICHS’ tasks also included the control of subsidy-related issues and the time-related co-ordination of single measures by means of overall structured schedules. Furthermore, external town planning offices, German railway companies, investors and also the public had to be involved.

In 1999, the first measure, the reorganisation of the central pedestrian zone, paralleled by an acceleration of the tramway 310, could be completed, cost-effectively, and according to schedule. This form of well-proven organisation was also used for all the following measures; the reorganisation of ‘Ruhrstraße’, the recreation of the junction ‘Marienhospital’ and the realisation of ‘Rathausplatz’.

In 2003, the realisation of many single projects was completed cost-effectively and according to schedule, enhancing the infrastructure and the esthetic appearance of Witten town centre.

at a glance


City Witten- department for Construction Administration and Housing





Gross surface area

approx. --- m²

Gross volume

approx. --- m³


approx. 66.5 Mio. € gross


1997 to 2003


Co-ordination of planning participants
Co-ordination of the building owner’s personal contribution
Conflict management
Contract management
Cost controlling
Cost management
Expert certificate
GÜ- und GPM-Modelle
Monitoring of feasibility studies
Organisation management
Process contol
Process control
Project control
Project controlling
Project handbook
Project supervision
Schedule controlling
Schedule planning
Sonderkoordination Termine
Time Schedule management

DIEDERICHS International GmbH
Chausseestrasse 25
D-10115 Berlin, Germany

phone: +49 (0) 30. 21 23 38.38

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