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- Turning with Wide Radius 65
- Straddling Center or Lane Marker 65
- Appearing to be Drunk 60
- Almost Striking Object or Vehicle 60
- Weaving 60
- Driving on Other Than Designated
Roadway 55
- Swerving 55
- Slow Speed (more than 10 miles per
hour below limit) 50
- Stopping (without cause) in Traffic
Lane 50
- Drifting 50
- Following too closely 45
- Tires on Center or Lane Marker 45
- Braking Erratically 45
- Driving Into Opposing or Crossing
Traffic 45
- Signaling Inconsistent with Driving
Actions 40
- Stopping Inappropriately (other than
in lane) 35
- Turning Abruptly or Illegally 35
- Accelerating or Decelerating Rapidly
30
- Headlights Off 30
The NHTSA research indicates that
symptoms are rarely seen in isolation; officers usually see a number of
driving symptoms before pulling the suspect over. And the chances of a
driver being intoxicated when multiple symptoms are observed can also be
calculated: "When two or more cues are seen, add 10 to the highest value
among the cues observed." For example, if the subject is observed to be
weaving (60) and following too closely (45), there are 70 chances out of
100 that his blood-alcohol is above the legal limit.
Speeding, incidentally, is not a
symptom of DUI. Because of the need for quicker judgment and reflexes,
it may actually indicate sobriety. You may get stopped for speeding, but
at least you won't have the officer approaching your car expecting to
make a DUI arrest.
So if you're driving home late some
night, keep in mind what the police are looking for -- and drive
accordingly. |