Motorists heading out of the city are being urged to be patient following a four-car crash on Auckland's northern motorway.

A study for Auckland Transport has calculated the "social cost" of cycle crashes for the region's biking routes.

Two young girls in trouble last week after crashing their parents' cars are unlikely to face charges.

Dozens of drivers have been ticketed by police after they were snapped on the wrong side of the road on busy South Island tourist route the Devil's Staircase near Queenstown.

Roads up and down the country are moving relatively smoothly as holidaymakers head home following the Christmas and New Year break.

One woman is dead after a car she was a passenger in left the road and crashed into a tree this afternoon.

Overseas drivers were involved in more than 400 crashes on New Zealand roads last year, and failure to keep left, poor handling and fatigue the leading causes of deadly crashes.

Who is your driver tonight? That's the question police want all New Year partygoers to consider - before the celebrations begin.

Police are reminding drivers to refrain from driving if they have been drinking and drive within the speed limits after a 22-year-old man was killed last night on the roads.

A 23-year-old man from North Canterbury is in a critical condition after being thrown from his vehicle when it crashed into a pole. The accident happened in Harwarden, near Lake Sumner Forest Park, just after midnight on Thursday.

A motorist travelling at 135km/h in the central North Island is among bad drivers caught by a police "eye in the sky".

New Zealanders are dying and being seriously injured in crashes that could have been avoided with a lower drink-drive limit.

Greg Reynolds has seen too many young, inexperienced drivers, older drivers and those who should know better crash outside his business.

Pedestrians have suffered almost a quarter of all deaths on roads around Auckland this year, fuelling a call for greater protection from vehicles at intersections.

A central Auckland bridge is netting $150,000 in traffic fines from confused motorists every month.

A 22-year-old man is dead and three others seriously injured after an overloaded car lost control and landed in a ditch in Northland early this morning.