

Interestingly, it’s about adhering to expectations more than anything else. If you have a road that seems to be fine to travel at a certain velocity and the speed limit is significantly lower, people will still speed and therefore create massive velocity differences between themselves and those obeying the law, causing dangerous circumstances.
For example, a highway has a posted speed limit of 25. Some will still attempt to use the road for the purpose that it was paved and posted, so now you have some driving 25 and others at near-highway speed. The difference in velocity is the issue.
The solution? Just paving, signing, painting, etc. correctly. Glad New Zealand found the proper signage


I find it a little funny that you were downvoted for understanding defensive driving. But I can understand why she would be uncomfortable driving any faster. That road looks thin