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Abstract摘要 Informal urban development processes in Hanoi, particularly since the economic reforms of Doi Moi,have overlaid what were originally formally-planned urban districts, and created a chaotic mix of urban morphologies and building typologies. This spatial milieu strongly influences the opportunities for small-scale, home-based income generating activities that are a significant component of many Hanoian household’s livelihoods. Hanoi的非正式城市发展进程，特别是自Doi Moi的经济改革以来，覆盖了原本正式规划的市区，并造成了混乱的城市结构和建筑类型。这种空间环境极大地影响了小规模的、家庭创收活动产生的机会，而它是许多Hanoi家庭的生活的重要组成部分。This paper investigates how the spatial distribution of home-based businesses in Hanoi is influenced by its mix of urban morphologies (a gridded, planned street network with later additions of informal street segments) and mix of building typologies (formal residential buildings with an infill of informal self-built ‘tube’ houses). It explores the self-organized urban development processes through which residents have overcome spatial barriers to improve their economic opportunities and facilitate business activities. 本文研究了基于家庭空间分布的Hanoi企业受到城市形态混合（网格化、有规划的街道网络以及后来增加的非正式街道部分）和建筑类型的混合（正式住宅、带有非正式的自建“管状”房屋的建筑物）的影响。探索城市居民通过自我组织，克服发展障碍，提高经济机遇，促进商业活动过程。The paper uses Space Syntax theories to investigate the locational characteristics of home-based businesses within Hanoi’s street network, and Conzenian methodologies to study changes in built form at the scale of individual land parcels. The findings confirm the critical role of the planned street network and open spaces in supporting home-based businesses locating along local main streets. The analysis also reveals the key spatial barriers that constrain opportunities for home-based businesses establishing at off-street locations, which segregate them from the main pools of potential customers on local main streets: namely the highly hierarchical street network and the confined shared stairs that provide access to a high percentage of individual households. 本文利用空间句法理论调查河内街道网络中家庭式企业的位置特征，并通过Conzenian的方法去研究单个土地面积范围内建筑形式的变化。研究结果证实了经过规划的街道网络和开放空间在支持本地主要街道上的家庭式企业发展上的关键作用。分析还揭示了限制了非街道位置建立家庭企业的机会的关键空间障碍，这些障碍将它们当地主要街道上的主要潜在客户群体隔离开来：即在很大程度上只供单个家庭访问的高度分层的街道网络和狭窄的共用楼梯。The paper provides evidence-based lessons for urban designers, planners and policy-makers regarding the potential impacts of key spatial planning decisions on urban dwellers’ economic well-being, and highlights the ways that residents’ economic needs can drive informal changes to urban form.本文为城市设计者、规划者和政策制定者提供了有实证支撑的、说明了关键空间规划决策对城市居民经济福利的潜在影响的经验教训，并着重强调了居民的经济需求如何推动城市形态的非正式变化。

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