1. A method for generating a space-related traffic database for a radio network comprising a plurality of radio cells, which can each be assigned to a group of radio cells, with a region to be planned being subdivided into area elements by a grid and each area element being allocated a respective assignment probability to each of the radio cells serving the area element and also a land usage class from amongst a finite group of land usage classes, the generation being achieved by a minimization process in which the distance between the measured traffic of a radio cell and the traffic to be predicted of a given radio cell is minimized for each radio cell, with the traffic that is to be predicted of a respective radio cell being set equal to a sum of area elements that are weighted with land-usage-class-specific and group-specific coefficients, which area elements of the respective radio cell for a respective land usage class and for a respective group of radio cells are produced from the assignment probabilities of the area elements to the radio cells included in the process, and the coefficients are determined by the minimization process and assigned to the corresponding radio cell.