Motoring body NRMA has called for NSW to introduce breathalyser-equipped boom gates to stop people driving from venues while over the alcohol limit.

Football fans, music lovers and New Year's Eve revellers would have to pass a breath test before driving out of some car parks under a new proposal to stop drink-drivers.

The NRMA called for NSW to trial alco-gates - boom gates equipped with breathalysers - at car parks near high-risk drink driving environments, such as major sporting events and festivals.

"It is vital that NSW is at the forefront of new and emerging road safety technology if we are serious about reducing the road toll," the NRMA said in a report on Tuesday.

Sweden trialled alco-gates at Port of Gothenburg in 2013 after noticing drink-driving rates at some ports were three times higher than on other roads.

The NRMA report - titled 'Still Smashed?' - also detailed a survey of 1400 members that suggests one-in-16 drivers had driven the morning after a drinking session despite thinking they were still over the 0.05 blood alcohol limit.

Among drivers under 25 that behaviour was apparent for five-in-16 people.

Reasons offered for getting behind the wheel while still feeling alcohol-affected included work or plans the next morning (67 per cent) or no other form of transport being available (32 per cent).