Dublin City Council has asked the public to help decide if a controversial cycle route running alongside the banks of the River Liffey should go ahead.
The council has proposed building a cycle path running from Phoenix Park to the Point Village, which could result in less road space for general traffic and bus diversions.
Four options are being considered, two of which involve changes to traffic routes around the city.
A public consultation, which opens today, asks the public to pick their preferred route, or to state whether the proposal should go ahead.
The council's Director of Traffic, Michael Phillips, said it was important to offer commuters choice and to grow the number of cyclists in the city.
"The number of people cycling in Dublin has increased as better cycling facilities become available," he said.
"Off-road cycle routes can play an important role in encouraging people to take up cycling and also gives commuters more options when they decide how they want to travel to work."
The Liffey Corridor would run from the Phoenix Park to the 3Arena in the Docklands. The four options are:
l A two-way route along the north quays. This would not see a reduction in the number of traffic lanes, but a new section of boardwalk would be needed between Arran and Ellis Quay.
l The second option also includes a two-way route on the north quays, with buses re-routed to a new public transport corridor on Benburb Street between Heuston Station and Ellis Quay.
l The third involves a two-way north quays route with buses re-routed to the north of the Croppy Acre, which would be extended down towards the Liffey.
l The final option involves a one-way route on each side of the Liffey. The cycle tracks would be alongside the buildings and general traffic would not be affected. Bicycles would be segregated from traffic for most of the route, except at bridges and junctions.
A report has been published on the cycle website www.cycledublin.ie and information is also available at the Civic Offices, at the Central Library in the Ilac Centre and at the Dublin City Library and Archive on Pearse Street. The closing date for submissions is April 17. The preferred route will be subject to statutory consultation and planning.