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Formulation of the problem. In 2020, there were some radical changes that took place in the administrative and territorial structure of Zaporizhia region; as a result, 5 new administrative districts were created on its territory instead of 20 previous ones, which significantly affected the structure of the regional settlement system. Therefore, the question arises about the study of the settlement system of the region in the new socio-geographical realities. The purpose of the article. The purpose of the article consists in identification of the current state and spatial differences of the system of settlement of the territory of Zaporizhia region after the reform of the administrative and territorial structure. Methods. The study used methods for calculating quantitative and relative indicators of the state of urban and rural settlement systems, the comparative analysis of the assessment results, as well as methods for typing administrative districts according to the structure of the settlement system. Results. For each new district of the region, there were calculated the following indicators: the population density, population concentration index, the average population density of settlements, the average density of settlements, the average distance between them, the leadership index of the administrative centers of the districts, the level of urbanization of the territory by the share of the urban population, according to the hierarchical method of O. Tereshchenko and according to E. Arriaga’s approach. According to these indicators, the spatial differences in the settlement system of the administrative districts of the region were revealed. Differentiation of the system of urban settlements of the administrative districts of the region significantly exceeds the contrast of the average general indicators of the system of settlement of districts. This is especially evident when using hierarchical approaches to determine the level of urbanization. The district systems of rural settlements in Zaporizhia region have smoother differences in terms of similar indicators in comparison with the systems of urban settlement, which indicates the relative rationality of the new administrative-territorial structure. Based on the calculations, a typological grouping of the new administrative districts of Zaporizhia region according to the modern structure of settlement was carried out.As a result of this grouping, 2 types of districts were singled out: 1) districts with a monocentric settlement system; these include Zaporizhia, Melitopol and Berdyansk districts (they are clearly distinguished by the size, functions performed and the impact on the settlement system of multifunctional regional centers); 2) districts with a polycentric dispersed settlement system, these include Vasilievsky and Pologovsky districts (in these districts there are no centers with strongly marked leading positions both in terms of population and functions performed). Scientific novelty and practical significance. For the first time, there was carriedout an assessmentof the settlement system of the new administrative districts of Zaporizhia region; the spatial differencesof the settlement system were revealed according to various indicators. The data obtained can be used to optimize the territorial management of the region, to predict its further development and to work out strategies for socio-economic development.

Formulation of the problem. In 2020, there were some radical changes that took place in the administrative and territorial structure of Zaporizhia region; as a result, 5 new administrative districts were created on its territory instead of 20 previous ones, which significantly affected the structure of the regional settlement system. Therefore, the question arises about the study of the settlement system of the region in the new socio-geographical realities. The purpose of the article. The purpose of the article consists in identification of the current state and spatial differences of the system of settlement of the territory of Zaporizhia region after the reform of the administrative and territorial structure. Methods. The study used methods for calculating quantitative and relative indicators of the state of urban and rural settlement systems, the comparative analysis of the assessment results, as well as methods for typing administrative districts according to the structure of the settlement system. Results. For each new district of the region, there were calculated the following indicators: the population density, population concentration index, the average population density of settlements, the average density of settlements, the average distance between them, the leadership index of the administrative centers of the districts, the level of urbanization of the territory by the share of the urban population, according to the hierarchical method of O. Tereshchenko and according to E. Arriaga’s approach. According to these indicators, the spatial differences in the settlement system of the administrative districts of the region were revealed. Differentiation of the system of urban settlements of the administrative districts of the region significantly exceeds the contrast of the average general indicators of the system of settlement of districts. This is especially evident when using hierarchical approaches to determine the level of urbanization. The district systems of rural settlements in Zaporizhia region have smoother differences in terms of similar indicators in comparison with the systems of urban settlement, which indicates the relative rationality of the new administrative-territorial structure. Based on the calculations, a typological grouping of the new administrative districts of Zaporizhia region according to the modern structure of settlement was carried out.As a result of this grouping, 2 types of districts were singled out: 1) districts with a monocentric settlement system; these include Zaporizhia, Melitopol and Berdyansk districts (they are clearly distinguished by the size, functions performed and the impact on the settlement system of multifunctional regional centers); 2) districts with a polycentric dispersed settlement system, these include Vasilievsky and Pologovsky districts (in these districts there are no centers with strongly marked leading positions both in terms of population and functions performed). Scientific novelty and practical significance. For the first time, there was carriedout an assessmentof the settlement system of the new administrative districts of Zaporizhia region; the spatial differencesof the settlement system were revealed according to various indicators. The data obtained can be used to optimize the territorial management of the region, to predict its further development and to work out strategies for socio-economic development. [ABSTRACT FROM AUTHOR]

Changes in social relations in Ukraine, its transition to a post-industrial society, structural changes in regional development lead in modern conditions to changes in the territorial organization of society, which directly affects the trends of regional development. The highest form of territorial organization of society are agglomerations – uban agglomerations. Defining the boundaries of agglomerations is an important step in the process of studying agglomerations and managing regional development, because it is necessary to clearly understand the territory to which the administrative influence should extend and the number of city councils whose activities should be coordinated in implementing regional policy. The purpose of this work is to analyze the existing methods, approaches and techniques for determining the boundaries of agglomerations, development of an algorithm for establishing the boundaries of agglomerations and its testing on the materials of the Kharkiv region. The main theoretical and methodological starting points of delimitation of agglomeration boundaries are presented, approaches, methods and techniques, their quantitative and qualitative criteria, indicators, etc. are determined. The author 's algorithm for establishing agglomeration boundaries is substantiated, initial positions, key indicators, coefficients and indices are indicated. The proposed algorithm was tested on the materials of Kharkiv region. It is established that the Kharkiv agglomeration is monocentric and well formed. The development coefficient of the Kharkiv urban agglomeration is 30.7, the agglomeration coefficient is 0.13, the agglomeration index is 0.25, which confirms the high level of development of this agglomeration and the significant polarizing effect of the city of Kharkiv. The applied indicators of concentration and population density, transport accessibility, allowed to establish that the Kharkiv agglomeration has a powerful organizational center of development - the city of Kharkiv, the polarizing effect of which is more pronounced in two districts – Kharkiv and Dergachiv, which form the central zone of the agglomeration. The center of the agglomeration is connected with remote centers of peripheral areas by radial-radial connections by transport and other types of connections, which forms an external zone consisting of Bohodukhiv, Valkiv, Vovchansk, Zmiiv, Zolochiv, Novovodolazk, Pecheneg and Chuhuiv districts. Based on the study, based on the principle of superposition, the author's vision of delimitation of the Kharkiv agglomeration in 2019 is presented. The zone of influence of organizational functions of the center extends to a radius of 70 km, but there are significant territorial disparities in the center and periphery. The city of Kharkiv assumes most of the functions: administrative, economic, social, infrastructural and recreational, which to some extent hinders the development of small towns that are part of the agglomeration. The strengths of the Kharkiv agglomeration are indicated, as well as the priority directions of development are singled out. Given that the Kharkiv agglomeration is monocentric, and within it, as in the region there is a sharp uneven development of the center and periphery, effective management and addressing the hypertrophied development of the city, spatial planning and infrastructure development will alleviate this situation and facilitate the transition of the region. to the polycentric model of spatial organization, respectively, and the reduction of territorial disparities in the level and quality of life of the population of the Kharkiv region.

In the modern context of, one of the main tasks in the regional development management is to optimally realize the complex potential of the territories, which requires a comprehensive study of the spatial structure and evolutionary potential of agglomerations of all levels in order to identify disparities in their development, correct imbalances and optimize the spatial organization of the region. The first step to solve this problem is to identify the spatial structure and evaluate the interconnections of agglomerations sequentially, from local to regional level. This is becoming more relevant in the context of administrative and territorial reform in Ukraine. The purpose of this study is to analyze the prospects for the development of urban agglomerations and the organization of the administrative and territorial structure of Kharkiv region in view of the prevailing influence of the city of Kharkiv and the Kharkiv agglomeration. The basic theoretical and methodological starting points of the study of urban agglomerations are presented; their characteristics and parameters of boundary determination were defined. The essence of the method of modeling of integral influence function (IIF modeling) was revealed, the author's research methodology was substantiated. The tendencies of introduction of administrative and territorial reform in Ukraine were analyzed. It was established that Kharkiv region occupies mediocre places in terms of formation of the united territorial communities, there were 23 ones in the oblast (3 of them are city, 12 town, 8 rural ones) by the end of 2019. The scheme for dividing into enlarged districts has not yet been approved. According to different plans / proposals, the existing 27 districts of the oblast should be consolidated into nine, seven, six or four enlarged districts (counties). All of the above proposals were considered by the authors, it is established that the existing projects do not fully cover the main prevailing factors of allocation of competitive districts, do not take into account the role of historically formed system of settlement, spatial-statistical parameters, integral potential of territories, urbanization and agglomeration. The authors performed the IIF modeling and constructed the IIF surface of the weighted average settlement potential of Kharkiv region by the base radius of influence (2, 10, 20, and 30 km), which allowed to determine the features of the Kharkov agglomeration structure and the interaction of the settlements in the region by different radiuses of interaction, primary agglomerations, prospective growth points. On the basis of the obtained results of IIF modeling, the author's model of administrative and territorial division of Kharkiv region into eight enlarged districts was proposed, given the specific features of the settlement system and the correlation of area and population of the modeled administrative and territorial units. The scientifically grounded division of the region into enlarged districts (counties) and stimulation of their development will contribute to the most complete and rational use of the territories potential, increase of economic, human, investment potential, rise of the level and quality of life of the population, etc.

Reforming the administrative-territorial structure on the basis of union village and urban councils into territorial communities has led to new transformation processes in the settlement system of Zaporizhia region and the country as a whole. The article analyzes the union of territorial communities in Zaporizhia region after the completion of the decentralization reform, calculates the density of population, settlements and the average quantity of settlements in territorial communities in the districts of Zaporizhia region. The study region ranks fifth in Ukraine among of united territorial communities. Almost 65% of the total population of the region is concentrated in Zaporizhia, Melitopol, Berdyansk, Energodar and Tokmak urban territorial communities. In the course of the research it was determined that more than a third of all communities of Zaporizhia region have a population of 5 to 10 thousand people. In the region is dominated by communities with an area of 100-200 km² and 200-300 km2. Chernihivska, Yakymivska and Primorska united territorial communities were created without taking into account the availability of public services for all settlements of the community. The highest population density is observed in the north-west of Zaporizhia region and in points in the united territorial communities, which include large cities in the region. In two thirds of the territorial communities of the region the amount of settlements does not exceed 15. Territorially, the highest density of settlements is observed in the north of Zaporizhia region, and the lowest - in the south-east and west. During the calculation of the population concentration index, it was determined that in Vasylivka and Pologi districts there is an uneven distribution of the population. Zaporizhia, Melitopol, and Berdyansk districts stand out with their abruptly uneven distribution of population. As a result of the change of the administrative-territorial structure of the Zaporizhia region, the process of functional transformation of the settlement system began. The Chernihivska, Yakymivska, Huliaipilska and Primorska communities have merged a large amount of local councils, so they will be most affected by changes in the functional connections between the settlements. There was also a breaking in functional connections in the settlements that were separated from the main part of the territory of the former districts. [ABSTRACT FROM AUTHOR]

The article deals with analysis of population resettlement systems of the Kharkiv region in order to allocate the regional growth poles. The analysis of scientific researches in the field of "center-periphery" theories, the theory of "central places" and the study of the supporting framework of resettlement have been carried out. The works by J. Thünen, W. Christaller, A. Lösch, F. Per-roux, W. Isard, G. Lappo and other authors have been analyzed. Some aspects of the urban study woldwide are presented. The spatial formational aspects of the modern urban settlement system of Kharkiv region are revealed. There are two stages of formation of the regional growth poles. stage I – 16-17 centuries, formation of the supporting framework of population settlement in connection with settlement development of the regional territory; stage II – 19-20 centuries, active economic, industrial development of Kharkiv re-gion. In accordance with the theory of integral systems of resettlement, the diversified organizational cores of the settlement system by population of the Kharkiv region have been determined. The organizational core of the rank 1 is Kharkiv (the central city in the region), 2 rank`s cities are Lozova and Izium (major cities of oblast significance), 3 rank`s cities are Kupiansk, Balakliia, Liubotyn, Pervomaiskyi, (cities with the predominance of industrial and transport functions), 4 rank`s cities are Bohodukhiv, Vovchansk, Zmiiv, Barvinkovo, Nova Vodolaga, Vysokyi, Dergachi (regional agro-industrial centers), 5 rank`s cities are Panyutyne, Kozacha Lopan, Borova (cities and villages that have an important transport position), 6 rank`s cities are Blyzniuky, Vilcha, Chervonyi Oskil, Kolomak, Zachepilovka (villages with high development of agriculture). Problems and perspectives of evolution of the Kharkiv re-gion resettlement system are revealed.

Changes in social relations in Ukraine, its transition to a post-industrial society, structural changes in regional development lead in modern conditions to changes in the territorial organization of society, which directly affects the trends of regional development. The highest form of territorial organization of society are agglomerations - uban agglomerations. Defining the boundaries of agglomerations is an important step in the process of studying agglomerations and managing regional development, because it is necessary to clearly understand the territory to which the administrative influence should extend and the number of city councils whose activities should be coordinated in implementing regional policy. The purpose of this work is to analyze the existing methods, approaches and techniques for determining the boundaries of agglomerations, development of an algorithm for establishing the boundaries of agglomerations and its testing on the materials of the Kharkiv region. The main theoretical and methodological starting points of delimitation of agglomeration boundaries are presented, approaches, methods and techniques, their quantitative and qualitative criteria, indicators, etc. are determined. The author 's algorithm for establishing agglomeration boundaries is substantiated, initial positions, key indicators, coefficients and indices are indicated. The proposed algorithm was tested on the materials of Kharkiv region. It is established that the Kharkiv agglomeration is monocentric and well formed. The development coefficient of the Kharkiv urban agglomeration is 30.7, the agglomeration coefficient is 0.13, the agglomeration index is 0.25, which confirms the high level of development of this agglomeration and the significant polarizing effect of the city of Kharkiv. The applied indicators of concentration and population density, transport accessibility, allowed to establish that the Kharkiv agglomeration has a powerful organizational center of development - the city of Kharkiv, the polarizing effect of which is more pronounced in two districts - Kharkiv and Dergachiv, which form the central zone of the agglomeration. The center of the agglomeration is connected with remote centers of peripheral areas by radial-radial connections by transport and other types of connections, which forms an external zone consisting of Bohodukhiv, Valkiv, Vovchansk, Zmiiv, Zolochiv, Novovodolazk, Pecheneg and Chuhuiv districts. Based on the study, based on the principle of superposition, the author's vision of delimitation of the Kharkiv agglomeration in 2019 is presented. The zone of influence of organizational functions of the center extends to a radius of 70 km, but there are significant territorial disparities in the center and periphery. The city of Kharkiv assumes most of the functions: administrative, economic, social, infrastructural and recreational, which to some extent hinders the development of small towns that are part of the agglomeration. The strengths of the Kharkiv agglomeration are indicated, as well as the priority directions of development are singled out. Given that the Kharkiv agglomeration is monocentric, and within it, as in the region there is a sharp uneven development of the center and periphery, effective management and addressing the hypertrophied development of the city, spatial planning and infrastructure development will alleviate this situation and facilitate the transition of the region. to the polycentric model of spatial organization, respectively, and the reduction of territorial disparities in the level and quality of life of the population of the Kharkiv region. [ABSTRACT FROM AUTHOR]

In the modern context of, one of the main tasks in the regional development management is to optimally realize the complex potential of the territories, which requires a comprehensive study of the spatial structure and evolutionary potential of agglomerations of all levels in order to identify disparities in their development, correct imbalances and optimize the spatial organization of the region. The first step to solve this problem is to identify the spatial structure and evaluate the interconnections of agglomerations sequentially, from local to regional level. This is becoming more relevant in the context of administrative and territorial reform in Ukraine. The purpose of this study is to analyze the prospects for the development of urban agglomerations and the organization of the administrative and territorial structure of Kharkiv region in view of the prevailing influence of the city of Kharkiv and the Kharkiv agglomeration. The basic theoretical and methodological starting points of the study of urban agglomerations are presented; their characteristics and parameters of boundary determination were defined. The essence of the method of modeling of integral influence function (IIF modeling) was revealed, the author's research methodology was substantiated. The tendencies of introduction of administrative and territorial reform in Ukraine were analyzed. It was established that Kharkiv region occupies mediocre places in terms of formation of the united territorial communities, there were 23 ones in the oblast (3 of them are city, 12 town, 8 rural ones) by the end of 2019. The scheme for dividing into enlarged districts has not yet been approved. According to different plans / proposals, the existing 27 districts of the oblast should be consolidated into nine, seven, six or four enlarged districts (counties). All of the above proposals were considered by the authors, it is established that the existing projects do not fully cover the main prevailing factors of allocation of competitive districts, do not take into account the role of historically formed system of settlement, spatial-statistical parameters, integral potential of territories, urbanization and agglomeration. The authors performed the IIF modeling and constructed the IIF surface of the weighted average settlement potential of Kharkiv region by the base radius of influence (2, 10, 20, and 30 km), which allowed to determine the features of the Kharkov agglomeration structure and the interaction of the settlements in the region by different radiuses of interaction, primary agglomerations, prospective growth points. On the basis of the obtained results of IIF modeling, the author's model of administrative and territorial division of Kharkiv region into eight enlarged districts was proposed, given the specific features of the settlement system and the correlation of area and population of the modeled administrative and territorial units. The scientifically grounded division of the region into enlarged districts (counties) and stimulation of their development will contribute to the most complete and rational use of the territories potential, increase of economic, human, investment potential, rise of the level and quality of life of the population, etc. [ABSTRACT FROM AUTHOR]

The article deals with analysis of population resettlement systems of the Kharkiv region in order to allocate the regional growth poles. The analysis of scientific researches in the field of "center-periphery" theories, the theory of "central places" and the study of the supporting framework of resettlement have been carried out. The works by J. Thünen, W. Christaller, A. Lösch, F. Perroux, W. Isard, G. Lappo and other authors have been analyzed. Some aspects of the urban study woldwide are presented. The spatial formational aspects of the modern urban settlement system of Kharkiv region are revealed. There are two stages of formation of the regional growth poles. stage I - 16-17 centuries, formation of the supporting framework of population settlement in connection with settlement development of the regional territory; stage II - 19-20 centuries, active economic, industrial development of Kharkiv region. In accordance with the theory of integral systems of resettlement, the diversified organizational cores of the settlement system by population of the Kharkiv region have been determined. The organizational core of the rank 1 is Kharkiv (the central city in the region), 2 rank's cities are Lozova and Izium (major cities of oblast significance), 3 rank's cities are Kupiansk, Balakliia, Liubotyn, Pervomaiskyi, (cities with the predominance of industrial and transport functions), 4 rank's cities are Bohodukhiv, Vovchansk, Zmiiv, Barvinkovo, Nova Vodolaga, Vysokyi, Dergachi (regional agro-industrial centers), 5 rank's cities are Panyutyne, Kozacha Lopan, Borova (cities and villages that have an important transport position), 6 rank's cities are Blyzniuky, Vilcha, Chervonyi Oskil, Kolomak, Zachepilovka (villages with high development of agriculture). Problems and perspectives of evolution of the Kharkiv region resettlement system are revealed. [ABSTRACT FROM AUTHOR]

The article deals with current changes taking place in urban areas of agrarian regions of Ukraine. The analysis shows that big cities today are typically generators of innovation and investment development for a specific territory whereas towns are mainly serving centers in rural areas. It reflects changes in the socio-economic development of urban settlements that occur in trans-social relations. It was proved that the narrowing of production functions has led to imbalances between the major cities’ subsystems. All cities are elements of urban skeleton of geospatial management and resettlement that is why their development influences the entire economic space ofUkraine. They need state support and efforts on the part of governments in order to use competitive advantages of cities, enhance their socio-economic development. The development of modern urban settlements must be associated not only with the increase of their area or population, but with optimal use of inner-city resources and building of the urban environment. All cities are part of the geospatial reference frame of management and resettlement, as their development depends on the development of the entire economic space ofUkraine.

The article analyzes current changes that occur in the elementary structure of the settlement systems and also reflects the methodology of their study. Special attention is paid to the methodology of studying the directionality and intensity of relations between the settlements, dynamics of reciprocal development of the settlements in the system, homogeneity degree of the network of populated areas. All of the abovementioned provides an opportunity to establish the boundaries of the settlement system and allocate the nucleus of the system in the future. Investigation of the development level of the settlements’ functions is the foundation for the establishment of their role in the settlement system, particularly the centrality or peripherality of the settlement.

The article deals with current changes taking place in urban areas of agrarian regions of Ukraine. The analysis shows that big cities today are typically generators of innovation and investment development for a specific territory whereas towns are mainly serving centers in rural areas. It reflects changes in the socio-economic development of urban settlements that occur in trans-social relations. It was proved that the narrowing of production functions has led to imbalances between the major cities' subsystems. All cities are elements of urban skeleton of geospatial management and resettlement that is why their development influences the entire economic space of Ukraine. They need state support and efforts on the part of governments in order to use competitive advantages of cities, enhance their socio-economic development. The development of modern urban settlements must be associated not only with the increase of their area or population, but with optimal use of inner-city resources and building of the urban environment. All cities are part of the geospatial reference frame of management and resettlement, as their development depends on the development of the entire economic space of Ukraine. [ABSTRACT FROM AUTHOR]