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Overcoming flaws in permeability measures: modified route directness

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  • Paul Stangl

Abstract

Increased levels of walking have been associated with a range of individual and societal benefits, including reductions in energy use and greenhouse gas emissions, and improved public health. Recent scholarship has sought to provide evidence that good street connectivity encourages walking, and though some correlation is evident, the statistical significance of these studies is generally weak. This paper asserts that the most commonly used methods to measure street connectivity, intersection density and block length, are weakened by random variation, and more significantly, utterly fail to detect street patterns. An alternative measure, modified route directness, is introduced, and shown to be capable of measuring the impact of street pattern on permeability. A more effective measure of connectivity could help demonstrate the correlation between street connectivity and walking, enabling stronger arguments for changes regulatory activity and public investment that supports improved connectivity.

Suggested Citation

  • Paul Stangl, 2019. "Overcoming flaws in permeability measures: modified route directness," Journal of Urbanism: International Research on Placemaking and Urban Sustainability, Taylor & Francis Journals, vol. 12(1), pages 1-14, January.
    • Handle: RePEc:taf:rjouxx:v:12:y:2019:i:1:p:1-14
    DOI: 10.1080/17549175.2017.1381143
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    Cited by:

    1. Lingzhu Zhang & Alain JF Chiaradia, 2022. "Walking in the cities without ground, how 3d complex network volumetrics improve analysis," Environment and Planning B, , vol. 49(7), pages 1857-1874, September.
    2. Crispin H. V. Cooper & Ian Harvey & Scott Orford & Alain J. F. Chiaradia, 2021. "Using multiple hybrid spatial design network analysis to predict longitudinal effect of a major city centre redevelopment on pedestrian flows," Transportation, Springer, vol. 48(2), pages 643-672, April.
    3. Ayse Ozbil & Tugce Gurleyen & Demet Yesiltepe & Ezgi Zunbuloglu, 2019. "Comparative Associations of Street Network Design, Streetscape Attributes and Land-Use Characteristics on Pedestrian Flows in Peripheral Neighbourhoods," IJERPH, MDPI, vol. 16(10), pages 1-23, May.

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