Many bike lanes and traffic diverters have light flexible plastic bollards with a pivot at the base, to help discourage motor vehicle traffic. It is pretty clear that these are routinely run down, and sometimes torn off their base, by scofflaw people driving motor vehicles (you can see black marks on the bollards).
Here’s a different kind of bollard at the intersection of Adanac and McLean, near Woodland Park. It’s made of sterner stuff — steel pipe, embedded firmly into the roadbed, and probably filled with concrete.
Someone evidently decided to drive over it at speed, perhaps thinking (“what fun!!”) it was another of the light flexible pivoted plastic types (if indeed any thinking at all was involved). According to neighbours, there was a loud crashing sound accompanied by sparks. And somewhere, there is a badly damaged motor vehicle and a person trying to hide the shame of their decision.
I do wonder how the vehicle was able to flee the scene, without leaving a trail of even more parts, and of motor oil. Or to flee at all.