Changes in sizes of daily activity spaces due to the change of residence according to mobile positioning data

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Migration is one of the main processes that affect the redistribution of population. Most often it has been defined as a change in usual residence between two points crossing municipal or country borders. In the era of mobilites this definition is solely no longer capable of describing the essence of migration and the faceted connections between different mobilities like daily spatial mobility and change in residence. To overcome this bottleneck a more dynamic approach is needed. For this no distinction is being made between migration and residential mobility, which are otherwise more often studied separately. A place of residence or home is seen as Hägertsrand has termed it the “centre of gravity”. To study the interconnectedness of change in residence and daily mobilities, the activity space conception is being implemented to view the relationships between mobilities on different levels. Many authors have accentuated the need for longitudinal data that is able to describe changes through time. Passive mobile positioning data and the anchor point model let us inspect these trends and associations between long-term movements, like change in residence, and short-term movements, like everyday mobility concerning work, leisure and home.
The aim of this study is to give an estimation on the size of the actual activity spaces of Estonians with different socio-demographic characteristics (sex, age, cultural background) and whose residences are located on different levels of settlement hierarchy (e.g regional centres and its hinterland etc). Activity spaces are being given area measure through activity ellipses and buffers. The next step is to estimate what kind of differences emerged in the size of activity spaces after the change of residence and whether the activity spaces of movers differed from those who did not move.
Preliminary results indicate that different socio-demographic characteristics had an impact on the size of daily activity spaces. The size of activity spaces also varied on different levels of settlement hierarchy. Those who moved had overall bigger activity spaces than those who did not. Migration or change in residence did not have an impact on the size of activity spaces – there was no clear trend demonstrating increase or decrease in the size of activity spaces that came with the change of residence.

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