Different Residential Forms under the Evolution of Urbanization

Residential areas are an important part of the city. The form of the settlement reflects the overall city fabric and the feelings of the living space of the resi-dents. The contemporary European settlements show the characteristics of multiple changes under different residential theories. This paper first sum-marizes the development of housing theory under different urbanizations, and then analyzes the settlement forms and space with Hilversum as an example, focused on what is important for residential areas in different contexts. Finally, starting from the current situation of Hilversum, combined with the current urbanization development it discusses the trend of its residential form.

H. W. Hu DOI: 10.4236/cus.2019.74031 588 Current Urban Studies ments, people focus on how to organize a healthy community. Through systematic understanding of the theory of settlements under urbanization, this paper divides the development of European settlement theory after the industrial revolution into three parts: early urban theory exploration, material function rationality and urban renewal under the guidance of humanistic theory, expounding the theory of settlements, taking Hilversum as an example to analyze the physical form of settlements in the corresponding urbanization state, and theories under different urbanizations. The theory of settlement formation under different urbanizations is related to the types of forms presented, but all involve the influence of social forms on them, expanding the understanding of the possibility of physical space of settlements, and analyzing the current development trend of Hilversum, try to find a favorable development direction for the future residential area form corresponding to urbanization development.

Early Urban Theory Exploration-Garden City
With the first industrial revolution in the 18th century, a large number of cities in Europe produced unprecedented expansion, and the population density reached a special height. At that time, the theoretical guidance of urban planning had not yet been formed, and the urban infrastructure was weak and could not meet the new production and living requirements. This formed a very chaotic and harsh living environment. Some ideal reformers proposed the idea of constructing an ideal community or an ideal city. For example, Robert Owen proposed the Agricultural Cooperatives program, hoping to establish a mixed community of agro-industrial workers to solve the social conflicts and workers' housing problems at that time.
At the end of the 19th century, the British E Howard published the book "Tomorrow-The Road to Peace for Social Reform". For urbanization, he proposed the idea of "Garden City" (Figure 1). It advocates combining the advantages of urban and rural areas, integrating park green space into urban land use planning, constructing gardens in urban centers, and arranging public buildings, commercial areas, and residential areas in a circle around the circle. The outermost area is the industrial area, surrounded by railways, surrounded by green areas and surrounding farmland (Stephen & Ward, 1992). Six boulevards radiate from the central square, and the entire green space forms a complete system, and with the self-sufficiency urban development model and the reservation of permanent green belt around the city to prevent the city from expanding. The concept of garden city has far-reaching effects, the garden village, garden suburb, satellite town and new town were international variants that were built on the conceptual foundations of the garden city (Graham Livesey, 2011).

Functionalism
At the beginning of the 20th century, Europe still faced the problem of housing    (Alexander, 1965). It separates the residential area from the urban planning system and deeply considers the scale of the residential area, laying a foundation for the planning of modern urban residential areas.

Humanism-New Urbanism
The proliferation of zoning regulations in the twentieth century is unprecedented in the history of urban design (Howard, 1985). The functionalized hierarchical urban spatial structure and the fixed living mode of neighborhood units have become new obstacles to residents' free contacts, leading to the inability to cross-integrate and create diversity among functions. So people began to think about how to improve the humanized interaction space of residential areas that material functionalism ignores after the 1960s.
In the 1960s, Jane Jacobs criticized the lack of vitality and over-emphasis on functional divisions in the big cities of the United States in his book-"The Life and Death of Big Cities in the United States" (Ewart & Culpin, 1993 (Figure 3), the Avani Declaration and the new urbanism have emerged. Among them, the new urbanism combines the results of the neighborhood unit, the garden city and the new town planning in the suburban settlement planning, rethinking the problems of excessive use of cars, urban expansion, and suburbanization caused by single-function land use division (Huang, 2014). In the later period it emphasized the walking of friendly streets, human scales and diversity of residential planning.

Garden Area-Peripheral, Determinant-Before 1930
The garden area is located in the south and east of Hilversum. Its residential form consists of two or three floors of enclosure houses and a small number of determinants. Plan Oost is located in the eastern part of Hilversum and consists of an east-expanded building designed by Dudok (Figure 4). The residential area is connected with each other to form a block, form a street, and enclose a square to form an organic urban form. Since 1915, Hilversum has urgently needed new working-class housing, when the municipal housing company led by Dudok would create more than 550 housing units. The entire project was influenced by the garden city movement. In order not to disturb the rural character of Hilversum, Dudok thought of low-rise dwellings and longed for-minimizing the  building. Later,-special buildings were used-such as churches, schools, reading rooms, and urban greening in the extended area to against monotonicity and diversifying houses, and due to the influence of the garden city movement, Dudok created a good continuous circular road. The street can be regarded as the visual axis, starting from a church, school or other special building, forming a relatively independent small-scale neighborhood.
In terms of space, the traditional surrounding houses have relatively closed features (The left part of Figure 4). Through the enclosure of the house, the space inside and outside the city is distinguished. The interior refers to the inner courtyard synthesized by the building, and the external space refers to the city streets and open spaces between blocks. In the urban space formed by this layout mode, the street interface is the facade of the building, and the interface is continuous, and the inner courtyard is relatively private and has a strong sense of field.
In greening, compared the detached residential to the surrounding houses, the surrounding houses not only the land utilization rate is higher, but also the private garden and independent households are satisfied. The green front garden and the continuous green belts of the street combine with the street trees to create a tranquil garden atmosphere.

Post-War Residential Area-Determinant, Group Type-Before 1960
Most   In terms of space, group-style settlements have more obvious spatial organization, and the community center is stronger. In greening, more greening is incorporated into the community and there is an open space between the city and the private.

Urban Expansion Area-Distributed, Hybrid-Before 2005
Most

Conclusion
It can be seen that the form of the settlements varies in different periods according to the needs of the people, from the ideal community derived to the rapid urbanization and housing. Under the guidance of the functionalism of demand and the theory of humanities, people have turned their attention to the livability and traditional interpersonal communication of the community. Through the combing of different residential forms of Hilversum, although Dudok self-consciously presented himself as an artist, and Hilversum was his personal work of art (Cor Wagenaar, 2015), in physical form, it better reflects the concept of garden city and solves the problem of living in Hilversum workers. With the self-sufficiency urban development model, it has complete urban functions including commercial, industrial, educational, etc., the surrounding nature reserves not only effectively limit the spread of the city but also prevent the closure of Hilversum from outside towns. It gives Hilversum a unique and good ecological environment. Its settlement form has not been influenced by functionalism, strictly controlling the height of the building, and maintaining the characteristics of Hilversum between the country and the city. From the form of housing, it is divided into five types: enclosure, determinant, distributed, group and hybrid (Figure 9), which reflects the consistency of the harmonious community pursued by Hilversum's community building and urbanization.
These types of settlements, in terms of spatial permeability, from the strong to the weak, are distributed, determinant, group, hybrid and enclosure. The lowest residential density is the distributed type, and the hybrid type has the highest flexibility, and various factors can be adjusted during the design process. The overall form of settlements is humanized and diversified (Zhao, 2007).
From the perspective of space and greening, the future development of Hilversum in the inner city can be implanted in different residential forms, enclosing a more flexible space, focusing on the human scale, increasing the penetration of the neighborhood and creating more active neighborhood space. In greening, it is more important to consider its accessibility rather than simply increase greening. Based on good walking and public transport systems, Hilversum can become a new garden city under the new urbanism.

Limitations
The study of European urban settlements has helped to understand the possibilities of diversified housing design in different periods, and provided many examples. The purpose of the research is to change the stereotyped residential form

Conflicts of Interest
The author declares no conflicts of interest regarding the publication of this paper.