The extension of the DART to Drogheda train station will go ahead as planned after a legal objection to the project was dropped.
Irish Rail confirmed the judicial review case in the High Court against the project has been struck out after an out of court settlement in the proceedings was reached.
There were fears the legal action could delay the DART for a couple of years.
Work on the electrification of the network from Malahide to the town can now go ahead.
The arrival of the Dart+ coastal north route as it is officially known should mean more trains running more frequently between Drogheda and the capital.
Whether this will be every hour, half hour or fifteen minutes is still not known yet.
Irish Rail and their northern partners Translink have also finalised a deal to buy new trains to replace the current Dublin to Belfast Enterprise fleet.
The Railway Gazette says new electric-diesel trains will replace the current fleet of locomotive hauled stock and the new trains will also work on the new electric DART lines.
The DART service is due to be available in Drogheda in 2027.
