A major milestone, to extend the DART line to Meath and Kildare, is set to get on track.
A planning application is being lodged that will mean faster and more frequent trains for places like Castleknock, Leixlip and Maynooth.
Under the plan, the DART will be extended from Connolly and Spencer Dock in Dublin to Maynooth and to the M3 Parkway in Meath.
The number of trains running per hour will double from 6 to 12 – while passenger capacity will almost triple.
Irish Rail hopes begin works in 2024, becoming operational in 2029.
Potentially impacted landowners and occupiers are be contacted directly before the application is lodged on Friday.
