Carmel Police will participate in a special enforcement effort to crackdown on impaired driving this Thanksgiving weekend.  It’s one of the busiest travel times of the year, and police say that means the potential for more vehicle crashes. In a combined effort to stop impaired driving, prevent injuries and save lives-- law enforcement officers across New York State will take to the roads. The STOP-DWI Crackdown efforts start on Wednesday and will end on Sunday.  Carmel Police say research shows that high-visibility enforcement can reduce impaired driving fatalities by as much as 20 percent. Sobriety checkpoints play a key part in raising awareness about the problem.