The definition I use in my classes is the one developed by Dr. Mica Endsley:
"Situational awareness involves being aware of what is happening around you to understand how information, events, and your own actions will impact your goals and objectives, both now and in the near future" - Dr. Mica Endsley
Goes on saying that there are 3 different levels of:
Perception:
the most basic level involves the processes of monitoring, and simple recognition, which lead to an awareness of multiple situational elements (objects, events, people, systems, environmental factors) and their current states (locations, conditions, modes, actions).
Comprehension
requires integrating this information to understand how it will impact upon the individual's goals and objectives. This includes developing a comprehensive picture of the world, or of that portion of the world of concern to the individual.
Projection
achieved through knowledge of the status and dynamics of the elements and comprehension of the situation, and then extrapolating this information forward in time to determine how it will affect future states of the operational environment.
To summarize I like to have students consider playing the "what if" game during normal daily activity. What if that guy is following me, what will I do? What if that person is tailing me on the roads, what will I do? What if there is a bank robbery while waiting for the next teller, what will I do?
Good Read shared with us during the DPS CHL Instructor Class: [FONT=TimesNewRoman,Bold][FONT=TimesNewRoman,Bold]On Sheep, Wolves, and Sheepdogs - Dave Grossman
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Be Safe,
Doc