| Titre | La desserte ferroviaire du port du Havre : la coordination défaillante. Un entretien avec André Graillot | |
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Revue | Flux |
| Numéro | no 38, octobre-décembre 1999 | |
| Rubrique / Thématique | Dossier : Réseaux et territoires en interconnexions |
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| Page | 47-55 | |
| Résumé anglais |
Since all trip-making in motor vehicles is constrained by the layout of transportation networks, only those spatial sectors being served by such networks actually turn out to be accessible. The Euclidean model, which defines the accessible surface A for a distance R from a point as : A - kR2, therefore seems to be less capable of effectively modeling this spatial relationship. Due to differences in performance (incomplete spatial coverage, variations in the speed of change), road network patterns serve to generate complex shapes in motorists' isochronal contours, which as opposed to resembling symmetrically filled-in disks tend to stretch out along the directions traversed by roads while containing some pockets of inaccessibility closer to the center. In order to define a more realistic model of land area accessibility that incorporates the quality of the spatial configuration of road transportation networks, we are proposing an approach based on fractal geometry. Such an approach presumes that space is not necessarily homogeneous and isotropic, a presumption which improves the understanding of our effective relationship with space. Keywords: Network, Accessibility, Fractal geometry, Morphology Source : Éditeur (via Persée) |
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| Article en ligne | http://www.persee.fr/web/revues/home/prescript/article/flux_1154-2721_1999_num_15_38_1291 |
