The introduction of a bus service, a near doubling of cycle routes, a 30km speed limit and the gradual deterrence of private cars are among plans to overhaul access to and transport in Phoenix Park.
No permanent entrance closures are proposed, but one, the Cabra Gate, is to be for buses, cyclists and walkers only.
Ashtown Gate will be entry-only and Knockmaroon Gate would lead to a cul-de-sac.
Several other culs-de-sac would be created to allow motorists to reach amenities but deter through traffic.
Buses would serve key attractions, including Dublin Zoo and Phoenix Park Visitor Centre, and provide commuter services for the 2,800 people who work in the park.
There will also be links to other services in the north of the city as well as to Heuston and Broombridge rail stations and the Luas Green Line.
Chesterfield Avenue would still be open to traffic but with extra cycle lanes and bus priority at junctions.
A total of 3km of internal roads would be traffic-free, while 13.5km would see re- duced traffic.
An extra 14km of cycling routes would be provided and the 17km of existing cycle lanes would be upgraded.
Upgrades for 7.2km of existing walking routes would be carried out and pedestrian crossings would be installed throughout the park.
The plans are contained in a study drawn up by the Office of Public Works (OPW), National Transport Authority, Dublin City Council and Fingal County Council.
Minister Patrick O'Donovan ordered the study after a temporary ban on cars in the park during the first Covid-19 restrictions prompted calls for a permanent prohibition.
A phased introduction of the changes is advised, beginning within months with an interim bus service and the piloting of culs-de-sac at North Road, Upper Glen Road and the Upper Glen Road car park.
Other changes would be rolled out over five years, with a review of the strategy to take place at the end of that period.