Location location location! A good urban planning is the most important prerequisite for successful areas. This implies that the shopping area is centrally located and easily accessible to consumers and supplying. It should be a place where people “automatically” come when they pass through the neighborhood or to the center. This has everything to do with the design of the street pattern and the routing of in- and through-bound traffic. The relative position of a shopping area within the grid can be calculated mathematically. This way, insight can be gained e.g. in the the relationship between the decline in visitor numbers and urban interventions elsewhere in the city (post-evaluation), or the projected effects of interventions which are not yet implemented (predictive evaluation). Past mistakes sometimes have disastrous consequences in the present. In those cases, it is necessary to adjust the urban structure to optimize or revitalize the shopping area.