Coordination of evidence - coordination of inspection/visual condition assessment, vibration measurements, noise measurements and surveying work as well as monitoring of air pollutants. These services are awarded in separate procedures.

Coordination of the preservation of evidence - review and familiarization with the documents of other experts from the preservation of evidence procedure on the construction period and all sub-projects, coordination and complete and timely execution by all experts or publicly appointed experts of the individual measures for the preservation of evidence of the individual disciplines for the construction measures within the framework of the Riederwald Tunnel project, such as

- Inspection/visual condition assessment

- Erschütterungsmessungen

- noise measurements, and

- surveying

as well as monitoring air pollutants.

These services are awarded in separate procedures.