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            <gco:CharacterString>Pistes cyclables issues de la Base Nationale des Aménagements Cyclables (BNAC) - CA Portes de France Thionville</gco:CharacterString>
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            <gco:CharacterString>Ce jeu de données a été conçu pour la visualisation et l’analyse du réseau cyclable à l’échelle territoriale. Il ne convient pas à des usages de précision métrique, notamment pour :

la géo-référencement précis d’adresses ou d’objets ponctuels,
ou la navigation en temps réel.

La précision géométrique varie selon les sources utilisées (OpenStreetMap, plans de récolement, orthophoto), et certains tronçons peuvent présenter des légers décalages avec les limites de voirie ou les emprises réelles.

Par ailleurs, la typologie ou le statut des aménagements (existant, en projet, supprimé) dépend des mises à jour transmises par les partenaires locaux, ce qui peut entraîner un décalage temporel entre la donnée et la réalité de terrain.

Il est donc recommandé de recouper ces informations avec les données locales les plus récentes pour toute utilisation opérationnelle ou réglementaire.</gco:CharacterString>
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Ces différentes sources permettent une couverture assez fiable du réseau cyclable existant, mais certaines limites demeurent, notamment :
- des écarts de précision selon les communes ou les périodes de saisie,
- une exhaustivité variable selon le niveau d’implication locale dans la mise à jour des données,

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