1. Ph.D. Candidate, Dept. of Civil, Environmental and Geomatic Engineering, Eidgenossische Technische Hochschule Zurich, Stefano-Franscini-Platz 5, 8039 Zurich, Switzerland (corresponding author).
2. Professor, Dept. of Civil, Environmental and Geomatic Engineering, Eidgenossische Technische Hochschule Zurich, Stefano-Franscini-Platz 5, 8039 Zurich, Switzerland.
3. Senior Scientist, Dept. of Civil, Environmental and Geomatic Engineering, Eidgenossische Technische Hochschule Zurich, Stefano-Franscini-Platz 5, 8039 Zurich, Switzerland.