[oostevo]

>> For whatever reason this seems to get motorists to drive more slowly and makes it safer for everyone.

That's actually a known phenomenon. When drivers experience unusual situations (like roads without stripes down the middle), they're forced to pay much more attention to the actual act of driving.

For more, see here: http://www.theatlantic.com/health/archive/2015/02/to-make-ro...

[ptaipale]

But then, if you want to make use of these unusual situations to make people drive more slowly, and build more of them, then they come not unusual situations, and everyone gets used to them and drives normally.

Where I live (Finland), we have plenty of separate bike/pedestrian paths, so biking is overall nice, but not like Copenhagen which is a) completely flat and b) in a milder climate.