DART services have returned to normal after an incident at Booterstown meant there were no trains between Dún Laoghaire and Blackrock.
Meanwhile, all lanes of the M50 northbound are now reopened after three collisions earlier today.
There was a crash on the southbound lanes just before Junction 4 at Ballymun.
This added to two earlier collisions in the same area, one at Junction 5 and one just before Finglas.
There were no fatalities in the crashes.
There were delays from Junction 7 at Lucan as a result of the crashes. The Southbound M50 was also very slow from Junction 4 at Ballymun to Junction 5 at Finglas due to onlookers.
Elsewhere, the N21 in Limerick northbound at Adare has also reopened after an earlier closure following a crash.
Traffic diversions have now been lifted.
