7 April 2025

Drivers underestimate their alcohol levels - RSA


Almost half of drivers who tested their alcohol levels at breathalyser kiosks underestimated the levels, writes Brian Byrne. The results are from a 7-month pilot study by the Road Safety Authority who placed the kiosks in hotels, bars, and event venues across Mayo, Galway, Cork, Limerick, Laois, and Westmeath.

The research showed that 45pc of those who tested over the limit thought they were fit to drive. With 64pc of those who exceeded the blood alcohol legal limit of 0.50 g/l having said they were going to drive, young men aged 18-34 were most likely to underestimate their alcohol levels and say they were going to drive.

Sarah O’Connor, Director of Partnerships and External Affairs at the RSA, said the data is a stark reminder that our perception of how alcohol affects us is often flawed.

The study was begun at the Electric Picnic, and also included kiosks at the National Ploughing Championships.