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Geohazard inventory for public roads on the Faroe Islands
Last modified: 2011-02-16
Abstract
Frequent geohazard phenomena on the Faroe Islands generally include rock falls, debris avalanches, debris flows and snow avalanches (Dahl et al, 2010). The network of roads into geohazard susceptible areas on the Faroe Islands has expanded rapidly in the past 50 years. Consequently, the frequency of reported geohazard events is steadily growing. The Faroese Office of Public Works (Landsverk) is responsible for public roads and their safety. In order to provide sound data for possible geohazard mitigation initiatives, the Office of Public Works took the initiative three years ago to construct a geohazard inventory for public roads on the Faroe Islands. This presentation outlines the basic concepts of constructing the inventory. When a road is cleared following a geohazard event, the location, time, geohazard type, magnitude and damage is recorded in a custom made registration scheme. Subsequently, the data is forwarded to the Faroese Earth and Energy Directorate (Jardfeingi) which is responsible for geostatistical tasks regarding data analysis and storage in a GIS-system. The new geohazard inventory provides essential data to the ongoing research on geohazard risk assessment in the Faroe Islands.