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area of space around the vehicle that is free of restriction, hazards, and conflicts when you use it
selecting and identifying only those clues or restrictions, hazards, or conflicts that are important to your driving task
12-15 second range
the recommended searching area for identifying changes in your line of sight and path of travel
4-6 second range
the searching range where you need to get the final update of how you are controlling your intended path of travel
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