The southside section of the MetroLink rail line in Dublin is set to be abandoned due to the government's unwillingness to disrupt the Luas Green Line for up to four years.
The line will still run from Swords to the city, but is likely to stop north of Ranelagh at Charlemont, and not continue to Sandyford.
The Irish Times reports that the change will be announced next month when the National Transport Authority is due to publish a revised route for the line.
The original plan involved the construction of a new underground track from Swords to Charlemont.
An upgrade of the Luas Green line from there out to Sandyford was also planned.
It is unclear if a southern Metro route will be constructed at a later date.