4.4.3. THE AGE OF SIGNS The time that has elapsed between when signs were first made and when they are observed, is one of the most significant factors affecting their application in MA. The longer the amount of time that has passed, the greater the probability that signs will have altered, for better or for worse. Experience and practice will help to overcome this difficulty, and this is explored further below.
4.4.4.OTHER CONSIDERATIONS
In addition to the factors above, there are a number of other considerations that will affect how IED signs can change.
For example, in built-up areas , there are many other considerations related to the application of signs, due to high population density. This includes how a sign relates to information gained from the community and how a sign can be incorporated into risk education specific to these environments. Also, there will be even more false signs identified that are extremely difficult to differentiate from true IED signs.
ׁ HINT. As visual identification of IEDs in urban environments can often be the primary means of detection, when applied well, both ground signs and top signs can be extremely important tools.
Image 68. Is that normal?
There is a metallic-looking wire protruding from the paving slab in Image 68. It could be difficult to assess whether this is an IED component or an innocent item such as a wire for a doorbell.
ׁ HINT. Providing MA staff with training on construction methods specific to a region, as well as the IED threat, can significantly help with the effective application of IED signs in an urban environment.
IED signs
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