On the 2010-06-24 I noticed that one section of the raised marker had come loose and was partly obstructing a lane used by traffic. Since then the markers have continued to move around. They are clearly not atached to the road any more.

Today at about 17:30 I took a photograph of the displaced markers.

These raised markers are a hazard to bicycles even when they remain in the same place on the road. If the markers move around they pose an additional hazard because they can be in an unpredictable position, and may move when struck by a vehicle.

The markers in Gatehouse drive have continued to degrade. They have continued to move out of position, presumably when cars run over them. This is another picture of a displaced marker.

The ongoing movement of these raised markers is increasing the hazard to bicyle riders on this street.