Blindgoers, unburdened explosives

Locations where possible there is a chance of unburdened explosives, the so-called blindgoers. This implies that a further examination of the presence of explosives is recommended at the designated sites prior to excavation or other ground movable operations. Next, it is necessary to determine whether an actual explosive investigation is necessary. This does not preclude the absence of any risk in unidentified locations. The locations have been identified on the basis of an extensive historical archival research. The areas are divided into three types of suspicious areas: 3. To be investigated; No investigation has yet been carried out for this part of the city to determine whether it is possible to suspect the presence of explosives. Thus, for ground-moving work, a historical investigation must be carried out to determine whether the location is suspicious. 4. Suspected from ground level; in these areas, there has been little earthmoving after the war, so that very shallow explosives can also be present. 5. Suspected from 0.5 m below ground level; In these areas a relatively large amount of earthmoving has taken place, which means that the risk of explosives in the upper half meter is nil.