1. Ph.D. Candidate, Dept. of Civil, Environmental and Natural Resources Engineering, Luleå Univ. of Technology, 971 87 Luleå, Sweden (corresponding author).
2. Associate Professor, Dept. of Civil, Environmental, and Natural Resources Engineering, Luleå Univ. of Technology, 971 87 Luleå, Sweden.
3. Associate Professor, Dept. of Architecture, Design, and Urban Planning, Univ. of Sassari, Palazzo del Pou Salit, Piazza Duomo 6, 07041 Alghero, Italy.