Table 2.

Categorization of stops into various activity locations.

Activity Locations (AL)	AND/OR	Classification Conditions
Home	OR	AL within 25 meter buffer from home address, obtained through questionnaire. AL within 25 meter buffer from home address, obtained by using GPS-data: if the first and last coordinates of multiple days were identical, these coordinates were considered the home location—only when the home address missed or was incomplete
Other residential area		BF25 = residence
	AND	BF25 ≠ shops or foodservice industry
	AND	LU25 = residences > 70%
Residential & shopping area		BF25 = shops or foodservice industry
	AND	BF25 = residence
	AND	BF25 ≠ other functions
Shopping area		BF25 = shops or foodservice industry
	AND	BF25 ≠ other functions
	OR	BF25 = shops or foodservice industry
	AND	LU0 = shops or foodservice industry
	AND	LU25 = shops or foodservice industry > 70%
Workplace	OR	AL within 50 meter buffer from work address obtained through questionnaire. AL located within 25 meter from health care institutions, offices, educational institutions, lodging, industry or shops according to building data, and if participants spent at least 240 min at that location.
Small green area		LU0 = parks and public garden or allotment garden
Larger green area		LU0 = recreational area, agricultural area, forest, or natural terrain
Sports facilities	OR	LU0 = sport terrain BF10 = sport facility Sports facilities in the Netherlands require membership or subscription, this comes with certain costs that differ per type of sport.
Other		If not classified as any other category

Note: BF₂₅ = Building function within 25 meter buffer from stop. BF₁₀ = Building function within 10 meter buffer from stop. BF₅₀ = Building function within 50 meter buffer from stop. LU₀ = Type of land use in which the stop is located. LU₂₅ = Type(s) of land use (%) within a 25 meter buffer around the stop.