File:VoitureDensitéUrbaineUSAfr.jpg

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English: Association between urban density (nb. of people/hectare) and car use (average nb.of kmdriven per capita/year)
Français : liens entre densité urbaine et l'utilisation de voitures en Amérique du Nord (pour quelques villes, 1991). Le constat est fait d'un lien statistiquement très significatif (R2 = 0,694) entre densité urbaine (mesurée en nombre de personnes par hectare) et usage de l'automobile (nombre moyen de kilomètres parcourus par habitant et par an). Attention, les politiques locales encourageant ou non le transport en commun et d'autres alternatives à la boiture (vélo, tram, train, piéton, etc.) ont aussi une grande importance. Des villes comme Houston et Phoenix, sans véritable centres urbains ni services de proximité, à l'habitat dispersés et forte tendance à la périurbanisation encouragent fortement l'usage de la voiture alors que des villes plus denses (ex : New York, Toronto, Montréal) proposent beaucoup plus d'alternatives "douces". rem: de 1950 à 1990, la population de Chicago s'est accrue de 38%, mais sa surface construite a augmenté de 124%. Les plans de développement urbains (PDU en France) et la "ville dense" sont des solutions qui tendent à devenir ou redevenir des modèles de bonnes pratiques. La même image existe légendée en anglais. D'après w:en:Bureau of Transportation StatisticsBureau of Transportation Statistics notamment repris parle géographe Jean-Paul Rodrigue Dept. of Global Studies & Geography, Hofstra University
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