Parts of the quays in Dublin city centre will close to cars from August.
Bus gates at Bachelors Walk and Aston Quay will be the first measures of the council's new Transport Plan to be introduced.
A ban on cars turning left from Westland Row onto Pearse Street will also kick in in August in a bid to cut the number of motorists driving through the city.
Head of transport with the council, Brendan O'Brien, says it's not about closing off complete access but introducing a low-traffic environment;
"The idea behind this is to reduce these as being through routes so to take away what is really a watery dual carriageway with big road on either side of the quays."
He says the bus gates along the river Liffey will mean only public transport, taxis, pedestrians and cyclists will be allowed to use the route.
A public consultation on the plan last year found more than 80 per cent of people were in favour of reallocating road space from cars and vans to buses, cyclists and pedestrians.
