Weakness Zones, Interpreted Lines (Open Data)

Weakness zones are based on underground information from various constructions, such as tunnels, and other substrates such as height data and geophysics. Each zone of weakness is described by different parameters and the amount of information underlying the observation builds up the safety of the observation, which is referred to as confidence. In zones with high confidence, connections to various observations, objects or references are made. For these zones there is also information about how the zone tilts (stupling) and the estimated width it has. For 3D visualisation, the direction of the zone (strike) is also indicated to know in which direction the zone leans according to the right hand rule. In the first place, the information is limited to Stockholm but later expanded to cover other areas in Sweden with the need for more detailed information.