- Tytuł:
-
Effects of choice of data aggregation method to a point on walking accessibility results using the G2SFCA method
Wpływ wyboru metody agregacji danych do punktu na wyniki dostępności pieszej uzyskane przy wykorzystaniu metody G2SFCA - Autorzy:
- Lechowski, Łukasz
- Powiązania:
- https://bibliotekanauki.pl/articles/34656131.pdf
- Data publikacji:
- 2022
- Wydawca:
- Uniwersytet Gdański. Komisja Geografii Komunikacji Polskiego Towarzystwa Geograficznego
- Tematy:
-
spatial accessibility
walking accessibility
GIS
2SFCA
data aggregation
dostępność przestrzenna
dostępność piesza
agregacja danych - Opis:
- In spatial accessibility studies based on market areas, such as floating catchment area (FCA) family methods, it is crucial to identify the point to which weights are assigned, both on the demand and supply side. Bearing in mind that it is not always possible to work on disaggregated data, the aim of this paper was to investigate which method of determining a point, minimises bias in the estimation of walking accessibility. The research used the G2SFCA method, introduced by Dai, which has been employed several times to model walking accessibility. Results clearly show that point location methods for area units, based on disaggregating data to buildings, perform better at the scale of statistical districts or cadastral precincts, compared to those based on the centrally weighted mean. They also show that positional measures such as the Euclidean centrally weighted median can improve the results of analyses in units that are heterogeneous in terms of settlement network pattern.
- Źródło:
-
Prace Komisji Geografii Komunikacji PTG; 2022, 25(4); 74-93
1426-5915
2543-859X - Pojawia się w:
- Prace Komisji Geografii Komunikacji PTG
- Dostawca treści:
- Biblioteka Nauki
Artykuł