Modeling the Commuting Travel Activities within Historic Districts in Chinese Cities

Table 1

Description of exogenous variables in SEM.

Attributes	Exogenous variable	Description
Household attributes	Household size (HS)	HS = 1: 1 or 2 persons; HS = 2: 3 persons; HS = 3: more than 3 persons
	Preschool children (CHI)	CHI = 1: yes; CHI = 0: no
	Automobile ownership (AUTO)	AUTO = 1: yes; AUTO = 0: no
	Annual household income (INC)	INC = 1: <30000; INC = 2: 30000–50000; INC = 3: >50000
Individual attributes	Gender (GEN)	GEN = 1: male; GEN = 2: female
	Occupation (OCC)	OOC = 1: worker or attendant; OCC = 2: staff or official; OCC = 3: self-employed
	Age (AGE)	AGE = 1: <30 years old; AGE = 2: 30–50 years old; AGE = 3: >50 years old