Pratomo, R A; Islamiah, Z and Bhaskara, B E (2024) A pathway to urban resilience: Investigating green open space priority areas to mitigate the urban heat island phenomenon in Samarinda City, Indonesia. International Journal of Disaster Resilience in the Built Environment, 15(4), pp. 591-616. ISSN 1759-5916
Abstract
Purpose: The potential for massive economic growth exists in Samarinda City due to the intensification of activities in built-up areas. This suggests the potential for increased urban disease in the relocation of Indonesia’s new capital city to a location adjacent to Samarinda. One of the most striking impacts is the urban heat island (UHI). The increase in this phenomenon can be addressed effectively and efficiently through the provision and arrangement of appropriate vegetation-based actions. Therefore, this study aims to identify priority areas of green open space (GOS) based on UHI levels. In addition, this study also aims to present alternative mitigation measures to reduce the risk of disasters due to UHI. Design/methodology/approach: A mixed-method approach was used in this research, involving an initial land surface temperature analysis to identify the UHI class. This analysis was complemented by quantitative spatial analyses, such as scoring, overlay and intersect methods, to determine the priority level class and the typology of GOS priority. A qualitative analysis was also conducted through data triangulation or comparison methods, such as examining existing land use, GOS priority maps and spatial plan policies. Findings: The findings show that the total UHI area in Samarinda City was 6,936.4 ha in 2019 and is divided into three classifications. In Class 1, the UHI area is very dominant, reaching 87% of the total area. Meanwhile, the main results identified two priority classes of GOS in Samarinda, namely, the medium and high categories with an area of 960.43 ha and 113.57 ha, respectively. The results also showed that there were 17 typologies associated with five alternative mitigation measures: green industry, greening parking lots, improving urban green infrastructure and buildings, urban greening and mining restoration. Research limitations/implications: Specific to assessing UHI, image data were available only in medium spatial resolution, leading to a consequence of detailed accuracy. In addition, since the determination of mitigation considered local policies, the method should be used in other locations requiring adjustments to existing regulations, specifically those related to spatial planning. Originality/value: This study makes a significant contribution to the understanding of the UHI phenomenon in Indonesia, especially in the urban areas of Kalimantan Island. In addition, the study presents new insights into alternative mitigation actions to reduce the risk of UHI. Innovatively, this study introduces a typology of regions associated with appropriate alternative mitigation actions, making it an important achievement for the first time in the context of this study.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | disaster; disaster risk reduction; green open space priority; mitigation; Samarinda; urban heat island |
| Index terms: | land, economic growth, mining, open space, urban heat island, urban greening, green infrastructure, surface temperature, spatial planning, Indonesia, restoration, urban resilience, triangulation, disaster risk reduction, methodology, urban area, qualitative analysis, mitigation, regulation, spatial resolution, relocation, land use, accuracy, maps, greening |
| Subjects: | climate science, research design and methodology, sustainability and resilience, real estate economics, financial risk, urban design, professional development, sustainable design, Geography, urban form and morphology, spatial and geospatial analysis, research methods, economic development, renovation and retrofit, political science, thermal systems, environmental hazards, measurement and scaling, geotechnical engineering, market analysis |
| Topics: | Urban Studies, Design Practice, Information Management, Engineering Principles, Geographical Context, Research Practice, Cost Management, Governance, Sustainability |
| Descriptive scope: | 4 PCTA |
N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here