It's not rocket science, but it seems some drivers need a reminder.
Part of SH1 was blocked while officials cleared the area.
"What an absolute muppet that person in the car is, could have killed someone."
There are detours in place.
The three accidents come after eleven deaths on our roads over the last week.
Campaigners say until the right infrastructure and technologies are here, everyone needs to watch out for blind spots.
There is traffic congestion and lanes are currently closed at the scene.
But New Zealand experts want parents to understand that each child is unique and age isn't the only factor.
The crash has blocked access to a side street.