Dynamic Accessibility using Big Data: The Role of the Changing Conditions of Network Congestion and Destination Attractiveness |
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Authors: | Borja Moya-Gómez María Henar Salas-Olmedo Juan Carlos García-Palomares Javier Gutiérrez |
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Affiliation: | 1.Transport, Infrastructure and Territory Research Group (t-GIS), Human Geography Department, Faculty of Geography and History,Universidad Complutense de Madrid (UCM),Madrid,Spain |
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Abstract: | Accessibility is essentially a dynamic concept. However, most studies on urban accessibility take a static approach, overlooking the fact that accessibility conditions change dramatically throughout the day. Due to their high spatial and temporal resolution, the new data sources (Big Data) offer new possibilities for the study of accessibility. The aim of this paper is to analyse urban accessibility considering its two components –the performance of the transport network and the attractiveness of the destinations– using a dynamic approach using data from TomTom and Twitter respectively. This allows us to obtain profiles that highlight the daily variations in accessibility in the city of Madrid, and identify the influence of congestion and the changes in location of the population. These profiles reveal significant variations according to transport zones. Each transport zone has its own accessibility profile, and thus its own specific problems, which require solutions that are also specific. |
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