BANK holiday weekend travellers have been advised by gardai to plan their trip in advance and use public transport wherever possible.
It is expected to be a particularly busy weekend in the capital, with a number of large events taking place around the city.
Gardai have mounted traffic checkpoints throughout the country in a bid to keep collisions down and are urging drivers everywhere to slow down.
Meanwhile, many streets around the city will face closures, with motorists being strongly advised to avoid the city centre over the weekend.
The Bloom garden festival is taking place in the Phoenix Park until Monday, and local traffic is expected to be affected by road closures.
Gardai advise those planning to attend the event to use the park and ride service, which will run from Heuston Station for the duration.
Tomorrow's Bavaria City Racing event will see wide-scale disruption in the city centre, with only North and South Quays open to traffic.
Motorists are urged to avoid non-essential driving in the city centre during the event, with those planning to attend advised to use public transport.
Further disruption can also be expected all weekend in the vicinity of Kilmainham, with thousands of music fans expected for the Forbidden Fruit festival.
Motorists travelling this weekend have also been strongly warned to familiarise themselves with the lower drink-drive limits.
Meanwhile Dublin Airport is expecting a busy weekend, with 245,000 people set to use the airport in the next three days.
DAA has advised travellers to arrive at least 90 minutes before their scheduled departure time.
Temperatures will be 13-14C, with Met Eireann predicting Monday to be the driest day of the long weekend. Rain is expected today and tomorrow.