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Evolution of Edges and Porosity of Urban Blue Spaces

A Case Study of Gdańsk

Bibliographic Data

ID22018516
AuthorsJustyna Breś (Gdańsk University of Technology), Karolina Krośnicka (0000-0002-7844-8572, Gdańsk University of Technology)
Year2021
Volume6
Issue3
Pages90-104
Publication date2021-07-27
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueUrban Planning (JOURNAL)
Journal identifiersISSN: 2183-7635 • E-ISSN: 2183-7635
PublisherCogitatio (PUBLISHER • PT)
DOI10.17645/up.v6i3.4108
OpenAlexW3184768757
LanguageEN
Citations received5
References cited13

Current waterfront studies focus mainly on a land-based perspective, failing to include the water side. Water is, however, not just a resource for port and industrial purposes and an edge to the waterfront; it is also a feature of the waterfront and the complex relation between water and city. Thus, the article suggests that water-land edges need to be re-contextualised, taking into consideration also their shape, functionality, and evolution over time. This article therefore introduces the concept of urban blue spaces, that is, spaces that include at least one land-water edge, such as a shoreline or river edge. The types and character of these edges define the porosity of urban blue spaces: Spaces with easy connections, such as boulevards or parks, are highly porous, while fenced areas have low porosity. The research first analyses the existing literature on the spatial and functional characteristics of the land-water edge in port cities, and explores existing typologies of urban blue spaces. The results of this investigation are used to examine the most iconic urban blue space of Gdańsk, the Motława river, over the last 1000 years. The case study shows that the porosity of the Gdańsk urban blue space has been increasing over time, in line with its spatial and functional development from an undeveloped riverbank to a ‘gated’ port and industry area, to urban living spaces today. The article thus presents the whole breadth of urban blue spaces through the case study of the Motława river urban blue space. The spatial evolution of the urban blue space is depicted through the transformation of its land-water edge—from a natural sloping edge to the dominance of vertical edged structures or ones overhanging the surface of the water, to the emergence of spatially ‘blurred’ sloping, slanted, terraced, and floating structures, partially independent of the riverbank. The transformation of the structure of the Motława urban blue space edges increased its complexity over time, from a single-edge structure to a double and multiple-edged one

Civil engineering · Data mining · Geography · Porosity · Shore · Urban planning · Water resource management · Computer Science · Engineering · Environmental Science · Land Use and Ecosystem Services · Urban Development and Cultural Heritage · Geology

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  • Coordination of planning regulations at the edge of water and land. Conflicts within planning policy for urban blue space in small and medium-sized Polish port cities and possible directions of change

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  • River.Space.Design

    Martin Prominski, Antje Stokman et al.•River, space, design•2012

  • Coastal area management

    Open Access•Adalberto Vallega•GeoJournal•1992

  • The port—City interface

    Open Access•Brian Hoyle, Brian Stewart Hoyle•Geoforum•1989

Unique citing works5
Citations per year1
Citation span2021 - 2026 (6)
Citation velocitycurrent
Highly citedNo
Citation typesNeutral: 5

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