Police in Canterbury are urging drivers to slow down after dozens of people were snapped crossing the centre line because of speed.
Roading policing manager for Canterbury, acting Inspector Leairne Dow, said officers out monitoring driver behaviour on the inland route between Christchurch and Nelson over the weekend found a high number of motorists crossing the centre line at bends.
As a result, 14 people were stopped near Mauria on State Highway 65 during a four-hour period on Sunday.
The next day, 21 drivers were stopped for crossing the centre line between 9.30am and 4.30pm.
Dow said motorists not only needed to slow down around bends, but to drive to the conditions - particularly when the weather is bad.