The weekend's traffic and travel will be dominated by Sunday's military parade in Dublin to mark the 90th anniversary of the Easter Rising.
Tens of thousands of people are expected to attend the parade which will start at 12.30pm from Dublin Castle and pass through Dame Street, College Green, Westmoreland Street, O'Connell Bridge, O'Connell Street, Parnell Street, Parnell Square, Granby Row, and Western Way.
Gardai are advising motorists that there will be a number of road closures and diversions in the city centre from 7pm on Saturday.
They have also asked people attending the parade to use public transport.
Due to ongoing street works viewing of the parade will be restricted on Upper O'Connell Street from Henry Street to Flanagan's restaurant, on the median strip opposite the Royal Dublin Hotel and on Lower O'Connell Street from Bachelors Walk to Middle Abbey Street and median strip. All other areas of the route are fully accessible to pedestrians.
The sporting front is dominated by the Grand National meeting at Fairyhouse which begins on Sunday.
The big race itself is on at 12 noon on Monday and motorists are advised to expect delays in and around the Meath racecourse.
There are also two national football league division semi finals on Sunday. Mayo meet with Connaught rivals Galway in Castlebar at 2pm while Kerry take one Laois in Killarney at 3.45pm.
Dublin Airport Authority expect more than 300,000 passengers to travel through the Airport over the course of the Easter Bank Holiday weekend.
Passengers are advised to arrive at check-in at least 90 minutes before their flight departure time. Passengers are also advised not to check in three or more hours before their flight departure time as airline check-in desks will not be open this far in advance of the flight departure time.