Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Estimating the Impacts of Urban Planning Concepts on Reducing Urban Sprawl Using Certain Spatial Indicators

Version 1 : Received: 1 September 2020 / Approved: 3 September 2020 / Online: 3 September 2020 (03:59:55 CEST)

How to cite: Batsuuri, B.; Fürst, C.; Myagmarsuren, B. Estimating the Impacts of Urban Planning Concepts on Reducing Urban Sprawl Using Certain Spatial Indicators. Preprints 2020, 2020090048 (doi: 10.20944/preprints202009.0048.v1). Batsuuri, B.; Fürst, C.; Myagmarsuren, B. Estimating the Impacts of Urban Planning Concepts on Reducing Urban Sprawl Using Certain Spatial Indicators. Preprints 2020, 2020090048 (doi: 10.20944/preprints202009.0048.v1).

Abstract

Numerous cities in our modern world are unfortunately encountering the negative effects of urban sprawl: this includes unrestricted settlement, degradation in the quality of their environment, traffic congestion, sub-standard buildings, and air pollution as well as flooding, swampy areas, landslides, and settlement zones with dilapidated utilities and infrastructures that are not safe for living. The Ulaanbaatar City land management master plan defined the settlement zone area suitable for living as 33,698 hectares. However, due to unrestricted urban sprawl caused by exponential growth of the city’s population, the settlement zone area reached 39,235 hectares, which exceeds the limit by 5,537 hectares. In order to tackle this issue, several urban planning concepts were developed to be implemented within the Ulaanbaatar City urban planning framework. It is, in any case, problematic to choose a single planning concept due to the fact that neither measurements nor analyses are being made of the respective spatial quantitative indicators in urban planning assumptions that are taking the current situation into consideration. One of the prerequisites for identifying an optimal concept in urban planning is an assessment of the current situation, and measuring the impacts against its quantitative data. In the current research, when defining Ulaanbaatar city sprawl, the base year was selected as 1990, the time when the city started to sprawl. Research analyses were made using geographic information systems based on the satellite data 1990, 1995, 2000, 2005 Landsat ТМ-5, 2010 Quickbird, 2015 World View and 2020 Sentinel2, respectively. Based on the results of determining the city sprawl using spatial indicators, the urban planning concepts applied thus far have been analyzed in relation to land use efficiency and land use structural changes. This research paper addresses the issue of reducing unrestricted urban sprawl by increasing the internal density of the city. The research results show that, by applying the concept of a compact city in urban redevelopment planning for 4,604 hectares, and by allocating the settlements in 12,479 hectares, it is possible to reduce the urban expansion threefold and increase land use efficiency accordingly.

Subject Areas

urban planning; land management; urban sprawl; spatial analysis

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