Urban Dynamics with Its Relation to Urban Ecology: A literature Review
Nefel Tellioğlu
Abstract
1. Introduction
Urban areas consist of human settlements with high population density. Urban population in the world has increased up to 3.9 billion from 746 million in 1950. The population of urban areas exceeded the number living in rural areas in 2009. From then, world population is more urban than rural. According to the data of Global Health Observatory in 2014, there were 7.25 billion population living in the world, of which urban population has reached to 3.9 billion (“Urban population growth”, 2014). Today, 54 percent of the population living in urban areas and it is predicted that urban population will grow to 6.4 billion by 2050, reaching
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There are industries, housing, and people as the main parts of this system. This literature review covers details of Forrester’s book, the critiques on the book and the question of necessity of adding some excluded environmental components to the urban dynamics to analyze the interactions within an urban system which is both a social and environmental system. Be clearer.
2. Forrester’s Urban Dynamics The growth processes of urban areas are the main issue of the book. Urban areas are considered as a system of interacting industries, housing, and people. The book examines the life cycle of an urban area using the system dynamics methodology.
2.1. System Dynamics Methodology System dynamics is a simulation based methodology which can be used in analyzing dynamics systems. This methodology can be applicable to many fields that have dynamic structure and behavior that change through time. As examples, followings can be considered as dynamics systems: the processes of engineering systems, biology, social systems, psychology, ecology, and all those where positive and negative feedback processes can be
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Outputs of the model
As the base run result, it can be seen from Figure 2.1 that urban system stagnates into a high level of underemployed housing and decreasing industry. There are high ratios of underemployed to skilled labor and of declining industry to others. Figure 2.1. Base run result: Life cycle of an urban area
By conducting some scenario analysis throughout the model, Forrester suggests some policies to prevent the undesirable stagnation of urban development. The policies are as following:
-Until the internal population balance is established, there must be a delay of immigration rate.
-Before the deterioration of housing creates an imbalance, city must focus on removal of aging housing.
-Since aging is continuous, the renewal process should be continuous instead of happening in specific times.
-To create job opportunities for the people living in the city, industrial areas should be established to the decayed housing areas.
-City regulations and tax policies should be considered to bring the most needed industries to the city.
-All the regulations must be conducted together to prevent the stagnation of urban
Principal among his solutions was housing reform, not just the making of laws to limit the number of people who could be packed into a given living space, but also the destruction or renovation of old buildings. Riis also believed that the landlords must be subject to law and punishment for their malpractice. He suggest that the states have the power to regulate and control of overcrowding and that the tenements and the landlords set a fair ground between them. The following proposals mean that the landlords must set the rent at a reasonable price for both the tenants and the landlords, and provide appropriate repairs and necessities when needed. Accordingly, the tenants must show respect and take care of their home with proper treatment.
Synthesis Essay Whether for better or for worse, America’s society is always changing. Some changes benefit the communities in America while other changes affect it negatively. One of those changes that happened in America is called gentrification. Gentrification is the process of renewing a low-income living area .
Cities improve due to innovation, but humans residing in them may not. The Industrial Revolution was a period in time where new inventions helped labor become less taxing and more efficient in the South. On the other hand, the North developed urban cities, which attracted many people. Urban cities had become the epitome of civilization: ease of life and wealth was present, but not available to everyone. To elaborate, these urban cities provided job opportunities to women.
Urbanization in America Business and industrialization centered on the cities in America like New York, Boston, and Chicago. The increasing number of factories created an immense need for labor which got people in rural areas to move to the city, and bringing immigrants from Europe to the United States. Urbanization changed America in many ways but specifically in a social and economic way leading to today’s America. In the late 1800’s and early 1900’s, urbanization was increasing at a startling rate.
Urban areas copied New York with their foundation of an appropriate and expert police division. Before at that point, the police were inexpert volunteers. New innovation was additionally acquainted with enhance conditions like steam pumpers. Transportation enhanced and wellbeing offices were additionally settled. Every one of these advances help to better enhance the nature of water, squander expulsion, and the neatness of the roads.
Introduction As the world’s population continues to migrate and live in urban areas, planners, engineers, and politicians have an important role to ensure that they are livable and sustainable. But what defines an urban area and what makes it so attractive? In my opinion, urban areas are places that consist of a variety of land uses and buildings, where services and amenities are easily accessible to the general public, and includes an established multimodal transportation network. Also, it should be a place where people can play, learn, work, and grow in a safe and collaborative manner.
Affordable housing is a necessary requirement in life for people who accept low income and has a good effect for society. According to Tran, (2015) view that, affordable housing is a worthy resource which has great potentialities in the economic system and it has contributed enormously to change the appearance of the metropolis as well as the countryside. The target of affordable housing gives the support to the community. For example, affordable housing can give us benefit in all aspects such as it brings profit in commercial enterprise, improving the standard of animation and an affordable housing can bring down some of the problems which related to the surroundings. As a consequence, the government should make more affordable lodging for
Research must be done to review the reduced amenities with the large demand and insufficient supply that it should be reasonable to control immigrants in the country. This can be accomplished when new policies are created to restrict immigrants from flooding Canada. Canada is ranked as the top country in the west that has more reception for immigrants. This is a great achievement but it is definitely out of control due to the large population. A city must be able to handle its population otherwise negative effects such as crime can arise.
Government need to intervene at the areas of urban extensions and new towns which combined Central and Local
There should be a plan for a mix of housing based on current and future demographic trends, market trends and the needs of different groups in the community. Furthermore, there is a need to identify the size, type, tenure and range of housing that is required in particular locations, reflecting local demand and that there should be policies which are sufficiently flexible of the changing market conditions (Affordable housing Supplementary
Overpopulation Overpopulation is a condition that is undesirable. Overpopulation is one of the problems that people concern it to. One of the serious countries facing this problem is China. Reports in China show that it has about 1.4 billion people in this country; it takes about one over seven people of the world population. China is the third largest land after Russia and Canada in the world.
Davis describes the urbanization process as occurring along an S curve, beginning slow, becoming fast, and then slowing down again. Based on this idea of S curve, he predicts an end to urbanization. The next essay “The Urban Revolution” was by arguably the single most influential archaeologist of twentieth century, V. Gordon Childe. In this writing, he redefines the major eras of human development.
Urbanization To what extent is urbanization a critical driver of social instability, failure of infrastructure, water crises & the spread of infectious diseases? Urbanization is basically the gradual increase in the proportion of people living in the urban areas or a specific area, and the ways in how the society adapts to it. Urbanization can be a good impact to a country and has the ability to improve its economy and the life of people but it also has the ability to destroy the country and the life of all the people that exist there. GLOBAL PERSPECTIVE:
Introduction Overpopulation is the excessive population of an area to the point of overcrowding and it is an undesirable condition in every country where the number of existing human population rises to an extent exceeding the carrying capacity of ecological setting. Overpopulation can be result from an increase in births, an increase in immigration, a decline in mortality rates and other factors that may cause overpopulated environment. Therefore, this can cause influence as lack of the available essential materials for survival like water, shelter, social amenities and other because of the numbers of people might be more than the materials for survival. In such condition, this regularly contributes to environmental deterioration, worsening
The employment growth has not been proportionate with population and GDP growth. The fact that there has not been any significant growth in employment despite considerable acceleration