pict. M. Van Olmen
- Observe the speed suggesting stripes.
Compare with other countries; f.e. Spain, Sicily, France, Pakistan. Norway brought the number down to the limit (one stroke, would that still work?). - The number of boulders is also reduced to the absolute minimum. Only Belgium has an old sign with only two rocks. Learn more about the Boulder statistics.
- The number of rocks falling is less than the number already down. The reverse is true on all other signs in the collection. Check that out.
