PL
Mapa odgrywa istotna rolę w planowaniu przestrzennym, ponieważ umożliwia czytelne zobrazowanie ustaleń opracowań planistycznych w przestrzeni geograficznej. Jednak charakter map, sposób ich opracowania oraz przyjęte założenia metodyczne powinny odpowiadać funkcjom oraz głównym celom poszczególnych opracowań planistycznych. Tymczasem w Polsce sposób podejścia do wykonywania map do studium oraz rysunku planu miejscowego w praktyce jest bardzo zbliżony. Niniejszy artykuł stanowi krótką ocenę pod kątem kartograficznym graficznego zapisu ustaleń studium oraz planów miejscowych, która może stanowić przyczynek do dalszej dyskusji na temat jakości oraz graficznego wyrazu tych map.
EN
Cartographic generalization plays a major role in the process of map creation. Its essence consists of the purposeful selection and generalization of presented structures and phenomena. The article presents the results of research that aimed at the objectivization and increase of the automation process of generalization on the example of the road network of the Lublin province. At first an evaluation of the road network was performed in the scope of five criteria namely the communication function, technical class, type of road surface, intensity of road moss and connection priority. On this basis a hierarchical order was established for all segments in respect to their importance in the whole road network of the Lublin province. The next stage consisted of conducting a selection of roads taking into account the generalization factors: scale, purpose and graphic limitations. The calculations were performed on the basis of a modified „extraction law". The last stage consisted of the performance of a graphic generalization of the road network which is comprised of a simplification and evening out of the line shape, defining the tolerance limits relevant to the map scale. On the basis of the obtained results it can be concluded that the cartographer's experience and intuition are not always sufficient to correctly render the spatial differentiation of the phenomenon while also ensuring the proper legibility and clarity of the map. Therefore, the best solution is to base the cartographic generalization process on scientific foundations. The recommended procedure may represent a model for conduct aiming at increasing the level of objectivization and automation of the road network generalization process. The results obtained in the individual stages can be generalized into areas of similar road network concentration and differentiation in the scope of characteristic elements. The application of rules for other areas requires the performance of adaptation to conditions existing in the given area.