Fewer accidents are caused by traffic jams than by pickled drivers.

If this sentence is true, it is a very interesting fact.
It means that most people on the road when there is a traffic jam they are considering possibility considered possible cause of accidents. So, they defend other cars. We all know that if we have accidents in rush hours, we are going to get ourselves into big trouble.
However, the drunk driver can't reason right decision.  -->> What do you mean by this?
They forget the fear consequences of accidents. So, when we properly think our situation if we think of the possible outcomes, we avoide most dangers of accident can prevent accidents from happening. But if we lose our mind, it may cause many troubles.

Word choice
Sentence completion
Sentence construction
Spelling
Capitalization

Have a great day!