So.. New Zealand has 3.25m wide lanes typically. If you are interested in studies about how variables such as this and speed affect yearly fatality outcomes, NZ

So.. New Zealand has 3.25m wide lanes typically. If you are interested in studies about how variables such as this and speed affect yearly fatality outcomes, NZ Transport may be a good place to start. With ACC and public health in general safety and reducing healthcare costs(read: traffic accidents) is a huge concern. That being said, anyone driving from back to Auckland from the snow at 120kph+ knows that you don't drive slower due to the narrow lanes and crazy windy roads as much as you drive to the tolerances ;) Just like in US mountain areas you may be timid at first and get smoked by and annoy the locals, but you will soon learn to push the envelope.