TABLE 2. Travel Mode and Purpose Discussed in Different Studies.

Subject matter		Study
Travel mode	Driving	[45], [53], [62], [64]
	Transit	[45], [52], [53], [62]
	Walking	[45], [53], [62]
	Others (e.g., bike, air flight)	[62], [64]
Travel purpose	Retail and recreation	[7], [45], [48], [49], [53], [55], [57], [59], [61]
	Grocery store and pharmacy	[7], [45], [48]–[50], [53], [55], [57], [59], [61]
	Park	[45], [48]–[50], [53], [57], [61]
	Transit station	[45], [48]–[50], [53], [57], [61]
	Workplace	[45], [48], [49], [53], [57], [61]
	Residential	[45], [47]–[49], [53], [57], [61]
	Others (e.g., airport, tourist place, school, fitness center, place of worship, gas station, migration)	[7], [45], [47], [50]–[52], [55], [59], [63]
Traffic volume and accident		[58]