to divide attention between two or more sources of visual
information is a basic requirement of safe driving.
Drivers must perform two major tasks: (1) maintain their
vehicles in the proper lane and direction (a tracking
task), and (2) monitor the driving environment for vital
information, such as vehicles, traffic signals, pedestrians,
and other important events (a search and recognition
task). Because these tasks must be performed concurrently,
they require the division of attention.
If you think alcohol may have affected your ability
to drive safely then DO NOT GET BEHIND THE WHEEL! Get
a cab, get a friend to drive you home, or wait until
the alcohol no longer affects your ability.