The number of motorists arrested on suspicion of drink-drive offences in the Avon and Somerset force area is expected to stay at an eight-year low.
Since 1 December 132 drivers have been arrested out of more than 28,000 stopped for roadside checks.
A police spokeswoman said they were pleased drivers appeared to be heeding the message.
But there were dangers associated with driving the next morning after drinking, she added.
"People need to be aware that even if they do not drive on new year's eve, that by drinking for a long period later into the night or early into new year's day, they could be over the drink drive limit that morning."