Skip to main content
. 2021 May 27;16(5):e0251988. doi: 10.1371/journal.pone.0251988

Table 2. Functional classification of POI and reference value of coverage area.

Primary classification Secondary classification Reference area (ha) Remarks
Residential Residential district 3
Business residential district 0.1
Villas 1
Dormitories 0.1
Commercial and business facilities Shopping services 5/3/0.3/0.01 Shopping services include shopping malls, shopping malls, supermarkets and convenience stores
Life services 0.02
Automobile services 0.05/0.3 Automobile service is divided into automobile maintenance or automobile 4S shop
Catering services 0.02/0.1 The catering service is divided into general restaurants or high-end restaurants
Accommodation services 0.08
Leisure and entertainment 0.05
Financial insurance 0.02/0.5 Financial services are divided into financial and insurance stores, financial and insurance companies
Industrial Incorporated business 0.4
Industrial and mining factory building 1
Parks 6
Administration and public services Government agencies and social organizations 1
Health care 5/1.5/0.1 Medical and health care is divided into comprehensive type, specialized type, clinic and pharmacy
Public facilities 0.02
Science and education Institutions of higher learning 10
Scientific research units 0.2
Primary and secondary schools 2
Other 0.01
Green space Tourist attractions 2
Park Square 3