Some of the most important contemporary threats to the population are global emergencies, such as pandemics, refugee waves, and climate disasters. Urban areas with high-density housing and limited access to services have been primarily affected. There is often a lack of time, resources, and space to develop primary services available near places of residence. In the face of progressing urbanisation and the expanding pandemic, it is necessary to rationally manage urban space, ensuring the use of unused, post-industrial areas, on the one hand, and minimise the negative effects of crises—the spread of a virus, the occurrence of an urban heat island, or the relocation of refugees. One beneficial solution in cities is effectively managing empty, undeveloped urban areas to develop cities in a way that is future-proof from new emergencies. In this study, we aimed to search for optimal solutions which can help to alleviate the negative effects of emergencies in the city using the decision-making model of field reserve management. Two districts of Warsaw, the capital city of Poland, were chosen for this study: one was typically urbanised, namely, Mokotów, and the other had large undeveloped areas for construction, namely, Białołęka. We analysed the land reserves of these districts. Spatial analyses of the data made it possible to identify optimal locations that constituted land reserves that can be used for essential services. Based on the analysis results, planners can effectively create a set of recommendations for local governments. Thanks to these recommendations, municipalities can manage their land reserves and eventually adapt them for the abovementioned purposes. As a result, it is expected that the effective management of land reserves using publicly available spatial data will improve preventive actions in an emergency, such as a pandemic. In addition, the proposed design solutions are universal; since they are based on the data on available field reserves and their statuses, management in emergencies will be possible.
Spatial planning based on environmental justice is a key activity in the process of the provision of equal rights to live in a safe environment and possess the opportunities of using it. Irrational development of land containing historical earth surface contamination constitutes a severe threat to the health safety of residents, and it may consequently lead to slow violence. This paper’s objective is to identify districts of Warsaw where the phenomena of environmental injustice and slow violence in post-industrial areas occur and fill in the indicated knowledge gap in such issues in Poland. The aim is also to answer the question as to whether contamination of the pedosphere and changes in land use in brownfields have a considerable effect on differences related to the health safety of residents of particular districts of Warsaw. The results of analyses of correlations of soil environment risk, health safety of residents, social, and planning conditions show that, in districts with a large share of areas included in the register of historical earth surface contamination, higher-than-average soil environment risk occurs, and it is related to the transformation of brownfields. Wola is a district affected by the phenomenon of slow violence and environmental injustice. According to the research, Wola is an area of accumulation of the highest levels of soil contamination, as well as some of the least favorable indices of health safety of residents and social conditions (in the case of both, Wola takes the second position). It is also a place of dynamic, unplanned transformations of brownfields, resulting in the “discovery” of historical earth surface contamination at the stage of the investment process. As evidenced based on the example of Wola, lack of spatial planning in contaminated areas leads to the exposure of their residents to a higher soil environment risk that may result in reduced health safety and the occurrence of slow violence. Therefore, rational planning of development of land containing historical earth surface contamination, with consideration of the aspects of health safety of residents, is an instrument of provision of environmental justice in terms of access to healthy life and residential environment.
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