Total street names

The object class contains all current street names and their history at the time of warehouse creation. The data base for the city of Chemnitz takes into account the following definitions for the award of street names or road keys and for the management of the street name history: Each road key is unique within the entire database, i.e. it exists to a road key either a current or historical object. The relation of the indication under “from date” to the current date determines whether a street name is current or historical. If a street is given again under an equal name, it bears a new key. The road key may not be changed if it has been assigned for a street name once. The road key thus represents a unique key in the database. It can be used directly from the address warehouse to determine the street name without having to pay attention to the current or historical condition of the street name.