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VEDENS Drivers
The main characteristics used to differentiate between various drivers
are a "safety factor" and the time taken to change lanes. The safety factor governs:
the amount of headway regarded as comfortable when following another vehicle;
the amount of space regarded as sufficient when changing lanes; the observance of
speed limits; the tendency to drive the vehicle at or near the limit of its performance;
the tendency to change lanes and overtake on the inside for short term gain; the
advance distance where action is considered when approaching an exit or lane closure.
Thus timid drivers will tend to leave a longer space, drive more slowly and be
reluctant to change lanes, whereas an aggressive driver will tend to "tailgate",
cut-in in front of others, change lanes to overtake on the inside and substantially
exceed the speed limit.
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