“…The studies showed a wide range of indicators or definitions to determine patterns of commuting to and from school and used different categories for differentiating between active and passive travelers (Table 1). Overall, researchers included information regarding the mode of commuting to and from school [25,40,41,42,43,44,45,47,48,49,50], duration of ACS [25,40,42,44,45,46,48,49,50], number of active trips on a weekly basis [42] and distance between home to school [45]. Finally, the mode of ACS varied across studies: three studies [25,40,42] included only information regarding walkers; eight studies [41,44,45,46,47,48,49,50] combined walkers with cyclists and skaters in the analyses; and only one study [43] analyzed cyclists and walkers separately.…”