Modeling spatio-temporal diffusion of carsharing membership in Québec City

Auteur(s): Coll, Marie-Hélène; Vandersmissen, Marie-Hélène; Thériault, Marius
Résumé: Abstract During the last few years, car sharing has undergone significant growth, both in Canada and around the world. In this type of service, users share access to a fleet of vehicles, thereby giving them most of the advantages of automobile use, such as its temporal and spatial flexibility, without many of the constraints of ownership. This study analyzes the geographical and socio-economic factors that favour membership of a carsharing service in Québec City. We combined Cervero’s and Kockelman’s 5D model (density, diversity, design, distance to transit, and destination accessibility) with Hägerstrand’s concept of innovation diffusion so as to analyze the evolution of potential car-sharing membership. Zero-inflated negative binomial (ZINB) regression was used to model the spatial diffusion of the number of car-sharing members in Québec City from 1996 (two years after its inauguration) to 2008 at the local scale, with an annual time step. Results indicate that the carsharing distribution did, indeed, follow Hägerstrand’s innovation diffusion model and that, even though some of the 5D model significantly influenced membership, it was socio-economic factors (education, non-motorization, and family structure) that most greatly affected the membership rate in the service area. The model is used to assess and discuss market coverage potential in Québec City. Keywords: carsharing, sustainable mobility, Hägerstrand’s innovation diffusion model, 5D model, spatiotemporal modeling
Date de publication: 29 mai 2014
Date de la mise en libre accès: 29 mai 2017
Version du document: Accepted Manuscript
Lien permanent:
Ce document a été publié dans: Journal of Transport Geography, Vol. 38, 22-37 ( 2014)
Autre version disponible: 10.1016/j.jtrangeo.2014.04.017
Collection(s) :Articles publiés dans des revues avec comité de lecture

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