Influence of land use diversity upon neighborhood success: An analysis of Jacobs' theory

Schmidt, Charles G.

doi:10.1007/bf01287248

Cited by 16 publications

(16 citation statements)

References 1 publication

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“…Early attempts to quantify Jacobs' small/short blocks principle at the scale of neighbourhoods used the average block area as a measure (Weicher 1973, Schmidt 1977). This does not, however, account for long thin blocks.…”

Section: Permeabilitymentioning

confidence: 99%

Permeability and interface catchment: measuring and mapping walkable access

Pafka

Dovey

2016

Journal of Urbanism: International Research on Placemaking and

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The relationship between urban morphology and walkability is central to urban design theory and practice. In this paper we develop new measures for pedestrian permeability and catchment areas, suggesting that their joint use can progress our understanding of the ways urban morphology mediates walkability. Existing measures of permeability do not account for heterogeneous morphologies. Likewise, measures of pedestrian catchment do not account for what it is that is caught. The proposed 'area-weighted average perimeter' and 'interface catchments' together integrate both street width and block size, measuring both walkable access and what one gets access to. What is at stake is not only correlations with health and transport, but also measures of walkable access that are geared to the social and economic productivity of the city.

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Section: Permeabilitymentioning

confidence: 99%

Permeability and interface catchment: measuring and mapping walkable access

Pafka

Dovey

2016

Journal of Urbanism: International Research on Placemaking and

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“…He turned Jacobs' central hypothesis into a mathematical formulation and tested it with evidence from Chicago, concluding: 'Little evidence is found to support Jacobs, except on points where there is no disagreement between her and orthodox city planning' (ibid.). A subsequent study by Schmidt (1977), doing a similar analysis for Denver, similarly found Jacobs' theory 'not substantiated'. These two studies should have been sounding alarm bells, but Weicher's and Schmidt's findings seem to be practically unknown in urban design and planning circles.…”

Section: The Death and Life Of Great American Citiesmentioning

confidence: 50%

Science, pseudo-science and urban design

Marshall

2012

Urban Des Int

105

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Urban design theory has been criticised for being incoherent and insubstantial. It is suggested that this is partly because urban design theory is not robustly based on a fully scientific underpinning. In so far as urban design theory appears to be scientific, it is in danger of being pseudo-scientific. This article explores the relationship between science and pseudo-science, and questions the extent to which urban design theory could be called pseudo-scientific, by considering the hypotheses underlying four classic urban design theory texts. It is found that although the individual texts are more or less scientific, the way the field as a whole combines and uses these can be interpreted as pseudo-scientific. The article reflects on the interpretation of pseudo-science and suggests the need for urban design to have a better system of validation and critical assimilation of scientific knowledge.

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“…The early attempts to measure the accessibility of a pedestrian network incorporated the average block area [32][33][34], perimeter [35], length [36], diagonal [37] and the number of blocks within a given area. Other popular metrics for measuring the connectivity of the walkable environments indicate the total length of streets per area (or 'network density') [38] and the total number of intersections per area (or 'intersection density') [36,39].…”

Section: Access Networkmentioning

confidence: 99%

Access and Forms of Urbanity in Public Space: Transit Urban Design Beyond the Global North

Peimani

Kamalipour

2020

Sustainability

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There has been an emerging interest in the study of urban design dimensions associated with Transit-Oriented Developments (TODs). However, addressing the question of how TOD principles laid out in the international literature can be explored in the context of the global South remains in an incipient stage. In this paper, we investigate the nexus between station walkable catchments and forms of urbanity around transit nodes by adopting an assemblage approach to cut across any separation of sociality and spatiality. Drawing on empirical research from two case studies in Tehran, this paper contributes to studies on transit urban design by developing two measures of accessibility—the Catchment of Accessible Public Spaces (CAPS) and Accessible Interfaces (AI). We found that the combination of high CAPS and high AI within a given time can enable streetlife intensity, which is also linked to a synergistic effect of a larger assemblage, including the number of entries and diversity of functions. We argue that a focus on both measures is critical to understand the performance and potential transformation of street networks in a TOD.

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Influence of land use diversity upon neighborhood success: An analysis of Jacobs' theory

Cited by 16 publications

References 1 publication

Permeability and interface catchment: measuring and mapping walkable access

Permeability and interface catchment: measuring and mapping walkable access

Science, pseudo-science and urban design

Access and Forms of Urbanity in Public Space: Transit Urban Design Beyond the Global North

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