Collard

Bollard collar, a circular piece of hardware installed in the ground that holds a bollard. Collards tend to stick up from the ground a few inches and can be very difficult to see.
Collards are usually left behind even when a bollard is removed which can be more dangerous because cyclists are less likely to see them.
==Reference==
Comes from combining the term bollard collar into one word. It has nothing to do with collard greens, even if it may be disliked much more than the food.
==Forum Introduction==
*Hazardous Bollard and Bollard Collar Map http://bikearlingtonforum.com/showthread.php?p=22194#post22194
==Links==
Category:Forum Dictionary