Changes in mobility over the life course: the importance of biographical and accessibility-related key events

“流动性传记”方法最近在交通研究中得到发展，用于调查个人生命过程中流动性的稳定性和可变性。这里有意使用“移动性”一词，包括已实现的出行行为和可获得的移动性工具，如汽车和公共交通季票。生命历程中的关键事件在流动性传记中起着核心作用。这些可能被分配到三个生活领域（或“部分传记”）：家庭和家庭传记，就业传记和居住传记。更重要的是，流动性传记与一个人生活的空间和交通系统背景的变化密切相关。该项目旨在将现有的关于流动性传记的研究扩展到7个，可能是8个关键的实证问题上，在这样做的过程中，也有助于该方法的进一步理论和方法发展：(1)不同生命历程相关关键事件之间相互作用的作用，(2)关键事件对流动性的影响中群体特定差异的作用，(3)父母流动性对子女流动性的影响（社会化），(4)家庭中两个伴侣之间的互动对流动性的影响，(5)关键事件和流动性变化之间的顺序结构。包括滞后效应和领先效应，(6)队列效应和时期效应的建模，(7)使用德国流动性小组的全国代表性样本。迄今为止，该领域的大多数研究都是基于小区域样本，代表性有限。

'Mobility biography' approaches have recently been developed in transport studies that investigate the stability and variability of mobility over an individual's life course. The term 'mobility' is used deliberately here to include realised travel behaviour and the availability of mobility tools, such as cars and public transport season tickets. Key events over the life course play a central role for mobility biographies. These may be assigned to three life domains (or 'partial biographies'): household and family biography, employment biography, and residential biography. What is more, mobility biographies are closely connected to changes in the spatial and transport system context in which a person lives.The project aims to extend existing research on mobility biographies with respect to seven, possibly eight, key empirical issues and, in doing so, also contribute to the further theoretical and methodological development of this approach:(1) The role of interactions between different life course-related key events,(2) the role of group-specific differences in the effects of key events on mobility,(3) effects of parental mobility on their children's mobility (socialisation),(4) interactions between two partners in a household in the effects of key events on mobility,(5) sequential structures between key events and changes in mobility, including lagged and lead effects,(6) the modelling of cohort effects and period effects,(7) the use of the nation-wide representative sample of the German Mobility Panel. Most research in the field to date is based on small regional samples with limited representativeness.