Holiday makers head north along the Princes Highway in Nowra.

Holiday makers head north along the Princes Highway in Nowra. Photo: Adam Wright

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Queues of traffic stretching for kilometres are causing lengthy delays across Sydney and NSW as motorists head home on the Easter long weekend.

The most affected areas are in the state’s north, the South Coast, Hunter and Central Coast regions.

Just after 4pm, traffic was queued 23km on the Pacific Highway at Ewingsdale, near Byron Bay, adding two hours to travel time, the Transport Management Centre said. Further south at Woodburn, traffic was banked up 10km and causing 35 minute delays around 1pm, but by 5pm this had mostly cleared adding five minute delays.

Drivers are being urged to pay extra attention southbound on the Pacific Highway at Port Macquarie, near Dennis Bridge, where traffic is banked up five kilometres.

The afternoon crawl showed no no sign of easing around Newcastle. The TMC said a 3.5 kilometre queue on the Pacific Highway between Heatherbrae and Hexham was causing 15 minute delays. 

On the Pacific Motorway (M1) at Warnervale, on the Central Coast, traffic was queued 25km shortly before 3pm, causing 55 minute delays. This fell to 18km and 45 minute delays just after 4pm.

South of Sydney, the TMC has advised heavy traffic throughout the afternoon along the Princes Highway at Batemans Bay, Ulladulla and Milton, Nowra, Berry, the Kiama Bends and Albion Park Rail.

At 5pm, traffic was banked 5km at Berry, adding an extra 30 minutes to travel time.

Heading east from the Blue Mountains, drivers can expect a 4km queue on the Great Western Highway in Blackheath, which is adding about 20 minutes journey time.

There is also a 7km eastbound queue on the Great Western Highway in Woodford, which is adding about 45 minutes journey time.

Motorists are advised to plan their trip, allow plenty of additional travel time, take extra breaks and expect delays throughout the afternoon.

With AAP