Faculty of Physical Education & Health, University of Toronto, Toronto, Ontario, M5S 2W6, Canada.
BMC Public Health. 2011 Aug 3;11:618. doi: 10.1186/1471-2458-11-618.
Studies examining the correlates of school transport commonly fail to make the distinction between morning and afternoon school trips. The purpose of this study was to examine the prevalence and correlates of mode shift from passive in the morning to active in the afternoon among elementary and secondary school students in Ontario, Canada.
Data were derived from the 2009 cycle of the Ontario Student Drug Use and Health Survey (OSDUHS). 3,633 students in grades 7 through 12 completed self-administered questionnaires. Socio-demographic, behavioural, psychological, and environmental predictors of active school transport (AST) were assessed using logistic regression.
Overall, 47% and 38% of elementary school students reported AST to and from school, respectively. The corresponding figures were 23% and 32% for secondary school students. The prevalence of AST varied temporarily and spatially. There was a higher prevalence of walking/biking found for elementary school students than for secondary school students, and there was an approximate 10% increase in AST in the afternoon. Different correlates of active school transport were also found across elementary and secondary school students. For all ages, students living in urban areas, with a shorter travel time between home and school, and having some input to the decision making process, were more likely to walk to and from school.
Future research examining AST should continue to make the analytic distinction between the morning and afternoon trip, and control for the moderating effect of age and geography in predicting mode choice. In terms of practice, these variations highlight the need for school-specific travel plans rather than 'one size fits all' interventions in promoting active school transport.
研究学校交通的相关性通常未能区分上学日的早晨和下午的上下学行程。本研究的目的是检验加拿大安大略省中小学生从早晨被动模式转变为下午主动模式的流行率和相关因素。
数据来自 2009 年安大略省学生毒品使用和健康调查（OSDUHS）的周期。7 至 12 年级的 3633 名学生完成了自我管理的问卷。使用逻辑回归评估社会人口统计学、行为、心理和环境因素对主动上学交通（AST）的预测作用。
总体而言，分别有 47%和 38%的小学生报告了上下学的 AST。相应的数字分别为 23%和 32%的中学生。AST 的流行率在时间和空间上有所不同。小学生步行/骑自行车的比例高于中学生，下午 AST 的比例约增加了 10%。不同的 AST 相关因素也在小学生和中学生中有所不同。对于所有年龄段的学生，居住在城市地区、上学路程较短、并且在决策过程中有一定发言权的学生更有可能步行上下学。
未来研究 AST 应该继续在分析中区分早晨和下午的行程，并控制年龄和地理位置在预测模式选择中的调节作用。就实践而言，这些变化突出了需要针对特定学校的旅行计划，而不是推广主动上学交通的“一刀切”干预措施。
