1. EFLA Consulting Engineers, Lynghals 4, 110 Reykjavik, Iceland (corresponding author). ORCID: .
2. Icelandic Road and Coastal Administration, Sudurhraun 3, 210 Gardabaer, Iceland. ORCID: .
3. EFLA Consulting Engineers, Lynghals 4, 110 Reykjavik, Iceland.
4. Icelandic Road and Coastal Administration, Sudurhraun 3, 210 Gardabaer, Iceland.