Traffic restrictions which will last for two years are to begin on Monday on the northern approach to Dublin to accommodate construction work on the Dublin port tunnel.
Stretches of the N1/M1 from the Coolock interchange to Whitehall church will be reduced to one lane in each direction while the northern end of the port tunnel is being built.
Motorists are likely to face delays of up to 15 minutes. Dublin Corporation is encouraging people to use buses and taxis, as priority will be given to public transport on the route. There are three northside quality bus corridor routes - Malahide Road, Finglas and Swords Road.
Motorists travelling to or from Dublin Airport should allow extra time for all journeys, the corporation advises. A traffic plan will be in operation throughout the 24 months in which the traffic restrictions apply.
A southbound bus lane will operate through the construction works area from Santry Bridge to Whitehall. The southbound slip road, from Shantalla Bridge, will be open to public transport only.
Motorists are being encouraged to use alternative routes to and from the city/airport.
Motorists approaching Dublin from the south-west should use the M50;
Motorists travelling from the city should travel via the Finglas Road to the M50 or via Griffith Avenue and Ballymun Road to the M50;.
Motorists travelling to destinations south-west of Dublin should use the M50;
Motorists travelling southbound into the city should use the signposted route via the Malahide Road and Fairview.
There will be no right turn from Swords Road, southbound, to Collins Avenue between 4 p.m. and 7 p.m. from Monday to Friday.
When completed in a little over three years, the Dublin port tunnel will take 9,000 heavy goods vehicles off the city's streets each day.
"The port tunnel will make a major contribution to tackling transportation problems in Dublin", said Mr Seβn Wynne, project engineer at Dublin Corporation. "It will allow trucks to use the M50 and access Dublin port via the tunnel."