Abstract. The paper deals with the defects, faults and accidents of contemporary constructions. The increasing number of constructions provides higher probability of occurrence of the defects. The defect is a lack of structure, which is caused by faulty design, inadequate or imperfect execution. The defect may affect the performance of the structure. The fault is the temporary or permanent loss of ability to perform its function. A defect may be causing disorder of structure. A special attention is paid to the defects and disruptions of buildings, which caused death or serious injuries (human or animal), safety hazards or major property damage. The aim of the paper is a description and analysis of data from the Construction and Technical Prevention System (CTPS) in the Czech Republic in several last years. It is necessary to take measures to prevent serious or excessively repetitive defects of buildings.
Human error can be defined as any unintentional or inadequate decision, taken at any level in the hierarchy of an organization, which is, or was inappropriate in a given situation. Human errors can occur in all human activities across an organization-at a managerial, conceptual or technical level-in connection with mistakes in the construction project itself, mistakes made by the investor, mistakes made by those using the building, mistakes in supplier relations, mistakes in the maintenance of the structure, and others. The factors that can affect the reliability of those people making the decisions that lead to the mistakes include the quality of their education, their experience with stress, or lack thereof, as well as issues such as workload, fatigue, workplace ergonomics, working hours, social climate and private matters.
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