Difference between revisions of "Safety threats"
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Within internal threats we can distinguish threats that originate from [[natural threat|natural]] processes, threats that originate from [[failure|failures]], and threats that originate in [[human intent|wilful acts]]. Within threats that originate from failure, we can again distinguish between failures of designs ([[technical failure]]) and failures of human action ([[human failure]]). This structure is graphically depicted in the figure below. |
Within internal threats we can distinguish threats that originate from [[natural threat|natural]] processes, threats that originate from [[failure|failures]], and threats that originate in [[human intent|wilful acts]]. Within threats that originate from failure, we can again distinguish between failures of designs ([[technical failure]]) and failures of human action ([[human failure]]). This structure is graphically depicted in the figure below. |
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| − | [[File:taxonomy threats.png|center|400px|taxonomy of threats]] |
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| + | rect 254 879 255 887 [[[[technical failure]]|technical failure]] |
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| + | rect 448 887 285 730 [[[[human failure|Human failure]] |
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| + | rect 88 917 256 1076 [[[[natural threat]]|natural threat]] |
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| + | rect 281 917 450 1076 [[[[human intent]]|human intent]] |
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| + | rect 548 772 720 933 [[[[critical infrastructure]]|critical services]] |
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| + | rect 165 618 378 649 [[[[internal threats]]|internal threats]] |
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| + | rect 537 620 741 646 [[[[external threats]]|external threats]] |
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== References == |
== References == |
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Revision as of 14:58, 17 April 2012
Threat
A threat is a source of potential harm. It can both originate in wilful act (such as the threat of violence), as in non-intentional circumstances (such as the threat of volcanic eruptions).
Types of threat for functional objects
When we look at the concept of threat from the perspective of its functional use (which we can also do for urban objects), a threat can be defined as any circumstance that threatens the continuity or quality of those functions (which include, amongst others, protection of life and economic use).
Threats can in this perspective be classified by their origin. This classification is layered: the first layer discriminates between internal threats that have impact on the internal processes (such as a car hitting a building and causing diminished structural safety for the inhabitants) and external threats that only have impact on external requirements for those processes (such as a discontinuation of electricity supply to a building). Both types of threats will result in diminished continuity or quality of functions provided by the building (reduced safety in the first example, reduced comfort in the second example).
Within internal threats we can distinguish threats that originate from natural processes, threats that originate from failures, and threats that originate in wilful acts. Within threats that originate from failure, we can again distinguish between failures of designs (technical failure) and failures of human action (human failure). This structure is graphically depicted in the figure below.
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References
MAP
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