Time : The Missing Category in Christaller’s Model Bernard Marchand To cite this version: Bernard Marchand. Time : The Missing Category in Christaller’s Model. 2017. halshs-01587063 HAL Id: halshs-01587063 https://halshs.archives-ouvertes.fr/halshs-01587063 Preprint submitted on 13 Sep 2017 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. B. Marchand 1 Time : the missing category in Christaller's Model ____________________________________________________________________ Bernard Marchand, 2017,
[email protected] Institut d’Urbanisme, Université de Marne-la-Vallée ENTPE, Vaulx-en-Velin ____________________________________________________________________ Christaller's model is largely taught in geography courses and has inspired numerous developments in spatial analysis. As could be expected, geographers have been obsessed with space, the lay-out of central places networks, i.e the famous hexagonal pattern. They seem, however, to have neglected the time category, curiously absent from the model1. By "Christaller's model" is meant here the urban model proposed by Christaller in his famous thesis (Christaller, 1933)2. It has been so widely exposed and publicized that it does not seem necessary to expose it again : it will be assumed that the reader is familiar with its main parts.