Print Email Facebook Twitter Differences in levels of accessibility Title Differences in levels of accessibility: The importance of spatial scale when measuring distributions of the accessibility of health and emergency services Author van Wee, G.P. (TU Delft Transport and Logistics) de Jong, Tom (Stellenbosch University) Date 2023 Abstract This paper explores to what extent inequalities in travel times, measured via the Gini index, depend on the spatial scale at which (average) travel times are measured. By using the new concept of Dedicated Accessibility Points, for the Netherlands we calculated average travel times at four spatial levels, ranging from virtually individual addresses to the level of municipalities. Travel times by car and bicycle to three medical points of interest are calculated: pharmacies, family doctors, and hospitals, as well as travel times by car from three other points of interest: ambulance stations, fire stations and police stations. At the level of individual addresses the errors made due to spatial aggregation is absent, but at higher spatial scales it plays a role. The results show that the Gini index is heavily influenced by the spatial scale at which the indices are calculated, with smaller indices at higher spatial scales. We discuss the implications of these differences for research and policy. Subject AccessibilityEquityMAUPSpatial aggregation To reference this document use: http://resolver.tudelft.nl/uuid:94716349-d26d-4df5-8726-4ea7d7929154 DOI https://doi.org/10.1016/j.jtrangeo.2022.103511 ISSN 0966-6923 Source Journal of Transport Geography, 106 Part of collection Institutional Repository Document type journal article Rights © 2023 G.P. van Wee, Tom de Jong Files PDF 1_s2.0_S0966692322002344_main.pdf 5.4 MB Close viewer /islandora/object/uuid:94716349-d26d-4df5-8726-4ea7d7929154/datastream/OBJ/view