Research Article

The Spatial Patterns of Service Facilities Based on Internet Big Data: A Case Study on Chengdu

Table 4

Statistics of the largest cluster of all kinds of POIs.

POI typesCentral coordinates XCentral coordinates YMajor axis (km)Short axis (km)Ellipse area (km2)Azimuth (°)Maximum number of clusters (Piece)Percentage of maximum cluster in total number of points (%)

Catering services409876.843392601.516.248.72170.765157.512915856.83
Shopping services409322.593395173.2311.578.39304.88173.337206065.76
Transportation services409589.533392604.208.656.58178.82153.402305357.32
Scientific, educational and cultural services408424.733394477.8512.287.08273.07148.701264467.94