> "Note that the people drive the speed they feel comfortable with regardless of the posted speed limit if enforcement is not present"
- ref: https://books.google.co.jp/books?id=tF7uyw7feOMC&pg=SA13-PA1...
And a paper:
- "PEOPLE DRIVE THE SPEED THEY ARE COMFORTABLE WITH ON GRAVEL ROADS REGARDLESS OF SPEED LIMIT, K-STATE RESEARCHERS SAY"
- https://www.k-state.edu/media/newsreleases/april09/speedlimi...
> "Note that the people drive the speed they feel comfortable with regardless of the posted speed limit if enforcement is not present"
- ref: https://books.google.co.jp/books?id=tF7uyw7feOMC&pg=SA13-PA1...
And a paper:
- "PEOPLE DRIVE THE SPEED THEY ARE COMFORTABLE WITH ON GRAVEL ROADS REGARDLESS OF SPEED LIMIT, K-STATE RESEARCHERS SAY"
- https://www.k-state.edu/media/newsreleases/april09/speedlimi...