In public space from time we find roads and paths that were clearly created to drive or walk on, but will never fulfill that purpose. The accepted tool in town planning to prevent riding on roads and walking on paths, is building barriers. The Wegsperre [Road Block] deals with the essential nature of these barriers and the contradictory nature of the spatial situation in which they appear. This is a speculation about how the species of Wegsperren would behave if they could as they wanted.