In my time, personal vehicles run along the ground. They don't fly. In my homeland, cones are placed on the road when a portion of the road is going to be dug up for maintenance or to fix infrastructure below. The cones are made of plastic and tell the drivers that they can't drive there. They are like boundary markers for no go areas.
The problem is that sometimes the cones are placed on the ground too long before the maintenance starts, so the road can have cones on it for days or weeks without anyone touching the road. This is very frustrating for motorists.
For the past month I have been annoyed because cones we're placed on the slip road for junction 3 of the M40. This means all vehicles are forced on to the outside lane when they join the road. I don't like being forced into the outside lane, especially when the road has not been touched for a long time.
