The success of Dublin's metro will be compromised if the station at Dublin Airport is not located underneath the terminal facilities, Dublin Chamber has warned the Government.

The Rail Procurement Agency is currently finalising plans for the routing of Metro North and the favoured option has a station 700m away from the airport terminal at the Great Southern hotel.

Chamber CEO Gina Quin said that the metro will alleviate congestion around the city, but if the station is located almost one kilometre from the terminal, as is proposed, customers will not make the switch from their cars.

She said unless the more costly underground option is developed, the massive economic and social benefits the project promises to deliver to the country over the coming decades will be put at risk.