A piece of the curb on the outside edge of the roundabout is dislodged and has been for some time, probably torn up by a city snow plow over the winter. It tore up my tire tonight. A very unforgiving roundabout if you miss it by an inch and this makes it very dangerous and expensive (to replace tire). This has been reported by others before, and still has not been fixed. FIX THE CURB!