This is also challengeable: while it is true that in a crash, a bollard will heighten the risks for a motorist, we have to consider that bollards look dangerou

This is also challengeable: while it is true that in a crash, a bollard will heighten the risks for a motorist, we have to consider that bollards look dangerous to motorists. Thus they tend to drive slower and more carefully around them. That leads to lower risk of crashes. So all in all, we would need more info to actually argue whether they represent more or fewer risks for motorists