Value of Information Analysis (VOIA) in the context of the Observational Method in Tunneling Projects

Start date 01/01/2006
End date The project is closed: 31/12/2013

​The implementation of the new European standards for geotechnical design calls for new practice in the underground construction industry in Sweden. The standard proposes the Observational Method as an alternative method when the geotechnical behaviour is difficult to predict. The method involves iterative updating of models and design, which demands that the procedure for rock mass characterisation facilitates the updating. Geological investigations are often associated with high costs and uncertainties. An R&D programme at the Division of GeoEngineering focus on how a decisionmaker can prepare for a continuous updating process at the exploration phase of a project.

The primary objective of the involved R&D activities is to show how Value of Information Analysis (VOIA) can be used as a tool when working according to the Observational Method. VOIA is based on Bayesian statistics and cost-benefit analysis and is suitable for problems when different alternatives are evaluated and compared.


The project is carried out at the Division of GeoEngineering, research group Engineering Geology.

Project members

Project leader
Lars O Ericsson

Project members 
Lars O Ericsson
Miriam Zetterlund

Lars O Ericsson
Chalmers Areas of Advance
​Built Environment

Page manager Published: Mon 28 Oct 2013.