The substance of each, and the relative emphasis on one or the other, may differ between city-regions and depend on the dominant policy paradigm and the goals of interest groups. [...] Second, the method for measuring intensification was modified in the 2001–11 analysis because of concerns about the accuracy of the voluntary National Household Survey that replaced the long-form census in 2011 and the limited availability of data at the time of analysis. [...] The density of the existing urbanized area is lower than that in the expansion area, suggesting the creation of a higher-density ring of new subdivisions around the existing urban area. [...] The dissolution of the RPC in the mid-1990s inaugurated a period of disjointed planning and ongoing distrust between the city and its neighbours. [...] Over the decade, the population of station areas increased by 10,400 (nine per cent of total population growth), and the number of dwellings by 7,400, even as the overall population of the built-up urban area declined.