Road traffic and footfall in Dublin is down by around 7% since work-from-home advice returned.
It's led to concerns about the impact on retailers in the run-up to Christmas.
The number of cars on the roads has returned to around 90% of pre-pandemic levels since the country emerged from lockdown.
But the re-introduction of working from home on November 19th has led to a slight reversal of that trend.
Around 23,000 cars used a stretch of the M50 on the Monday before that policy came in.
But yesterday's figure was around 7% lower - with similar drop-offs recorded on the M1 and M4.
Footfall in Dublin city is also down - from 85% of pre-covid levels at the start of the month, to just over 75% now.
Latest figures also show 360,000 passenger journeys on public transport in Dublin in the week working from home took effect - down from 380 thousand the previous week.