Abstract Urban growth is a significant trend in Africa. Scholarly attention and urban planning efforts have focused disproportionately on the challenges of big cities, while small and medium-sized urban settlements are growing most rapidly and house the majority of urban residents. Small towns have received some attention, but very few studies have focused on secondary cities. This paper offers a study of urban transformations, migration and residential mobility patterns in Arusha, a rapidly growing secondary city of Tanzania. Arusha functions as a major attraction for migrants and in-migration is a central dynamic shaping transformation processes in central areas characterized by high population turnovers, vibrant rental markets and widespread landlordism. There is also a considerable degree of intra-urban residential mobility within and between central areas. Intra-urban residential mobility is the most important dynamic shaping transformation processes in peripheral areas characterized by long-term urban residents moving from central parts of the city as part of a process of establishing themselves as homeowners. Overall, the paper provides crucial insights on how migration and residential mobility patterns influence processes of urban growth and transformation in the context of large secondary city, and thereby contributes to fill a significant knowledge gap on secondary cities in Africa.

中文翻译：

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非洲二线城市的城市转型、移民和居民流动模式

摘要 城市增长是非洲的一个重要趋势。学术关注和城市规划工作不成比例地集中在大城市的挑战上，而中小型城市住区增长最快，并容纳了大多数城市居民。小城镇受到了一些关注，但很少有研究关注二线城市。本文研究了坦桑尼亚快速发展的二级城市阿鲁沙的城市转型、移民和居民流动模式。阿鲁沙是对移民的主要吸引力，移民是中心地区的一个核心动态塑造转型过程，其特点是人口流动率高、租赁市场充满活力和广泛的地主主义。中心区域内和中心区域之间也存在相当程度的城市内住宅流动性。城内住宅流动是外围地区最重要的动态塑造转型过程，其特征是长期城市居民从城市中心地区迁移，作为建立自己的房主过程的一部分。总体而言，本文提供了关于迁移和居住流动模式如何影响大型二级城市背景下城市增长和转型过程的重要见解，从而有助于填补非洲二级城市的重大知识空白。城内住宅流动是外围地区最重要的动态塑造转型过程，其特征是长期城市居民从城市中心地区迁移，作为建立自己的房主过程的一部分。总体而言，本文提供了关于迁移和居住流动模式如何影响大型二级城市背景下城市增长和转型过程的重要见解，从而有助于填补非洲二级城市的重大知识空白。城内居民流动性是外围地区最重要的动态塑造转型过程，其特征是长期城市居民从城市中心地区迁移，作为建立自己的房主过程的一部分。总体而言，本文提供了关于迁移和居住流动模式如何影响大型二级城市背景下城市增长和转型过程的重要见解，从而有助于填补非洲二级城市的重大知识空白。