3.3. THE BIG 5 The Big 5 are a group of terrain-based features that may have provided opportunities for IED emplacement during a conflict. In conjunction with other evidence, these features may be used to good effect when assessing where, inside a suspected hazardous area or confirmed hazardous area, IEDs are most likely to be located and what type(s) they will be.
3.3.1.CULVERT / WADI / FORD / BRIDGE
Image 23. Culverts provide an opportunity for the emplacement of IEDs
Culverts, like the one in Image 23, provide an opportunity to emplace a large main charge under a hard- topped route with relative ease. These features are often associated with command IEDs as the route can remain open to other traffic until a suitable target is present. In the example above, the culvert also creates a slowdown point, channelling a ground move on this very route, further aiding the use of IEDs.
ׁ WARNING. If the armed group did not need to use the route and civilian casualties were not an issue, VOIEDs could also be a threat.
IED indicators
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