The Chamber said that the building of the line, which will run from the city centre to Dublin Airport, is urgently needed to address ever-worsening congestion in Dublin. It has been calling for an early start (link opens in new tab).
CEO Mary Rose Burke said: "Speeding up the construction of Metro North would send a clear signal to the people and businesses of Dublin - and also workers and companies looking to locate here in light of Brexit - that Ireland is serious about addressing the current infrastructure deficits that threaten to stifle growth. The lack of a rail link between the city and the Airport is proving a deterrent to companies moving jobs and business to Ireland."
The Chamber said that Metro North will provide a transport solution both for Dublin Airport and for the fast-growing North County Dublin region.
Burke added: "A new rail link is needed not only to serve Dublin Airport, but also to cater for the additional 40,000+ people who will be commuting into Dublin city centre from north county Dublin by 2023. At the same time, passenger numbers through Dublin Airport are expected to exceed 36 million by 2022, up from 25 million last year. A new rail link will go a long way to accommodating such strong growth levels."