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Are compact cities a desirable planning goal
The consequences of urban sprawl
The consequences of urban sprawl
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Abstract
With increasing population the quality of life in the city started to degrade and air pollution increased. Increased population gave rise to urban sprawl i.e. wide decentralization of the city outwards. The factors that responsible for bad shape of cities are excessive dependency on cars, the poorer public transport, lack of walking and cycling pathways and the excessive growth of built-up areas.
The main concern how the cities should be developed in future into sustainable model, the compact city hypothesis has been proposed to upgrade urban sustainability of cities.
The Compact city has become a popular urban development form and how the form of cities- e.g. their density, size, layout of streets, and building forms can contribute in sustainability. In this paper I analyse different views on compact city by analysing different cities. Compact city is characterize by high density, mixed use land, efficient public transport system and improved air quality. The cities moderately became too dense and price of land increased. With this transition of cities, the density has become a most important factor in creating sustainable city. In this paper I analyse the form of sustainable
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From 13% world urban population in twentieth century to 50% in 2010 shows the urban trend. This trend of urban growth is more rapid in the developing countries. There is a need to implement sustainable development and urban development to decrease human activities on environment. To achieve sustainable urban development there are four urban forms Neo-traditional development, Urban Containment, Eco-city and Compact city. These all urban form are comprised of seven design principles a) compactness b) density c) Mixed land use d) sustainable transportation e) passive solar design f) diversity g) green
So the natural layout of large urban centers eventually gave way to a structured, logically designed cities near the turn of the century. With the help of industrial products such as steel and concrete, new forms were being used to maximize utility in crowded urban areas. Sanitation reform was underway to combat the natural forces of disease and other health hazards, and science was beginning to find the origins of disease and decay. All these developments show mankind taking a less natural approach to society, and bending nature to its will.
Reading the article “City Solution” introduce students to previous solution to urbanization. Greenbelt are said to be like a ring of green space that prevent the growth of a city. The original idea derived from Ebenezer Howard who saw the negative side of urbanization and come up with a theory to migrate people to the rural area and resist the dispersion of poorly managed urbanization. Howard’s original idea was to prevent the city from overcrowding and provide the city with more greens. At present, even though urbanization continue to grow, human are reacting to it with a new dimension and put more thoughts in planning the city to prevent Howard’s horror from his living in London during the 20th century.
Urban sprawl is a widespread concern that impacts land use, transportation, social and economic development, and most importantly our health. Poorly planned development is threatening our health, our environment and our quality of life. Sprawl is blamed for many things such as asthma and global warming, flooding and erosion, extinction of wildlife, and most importantly the public health such as social isolation and obesity due to people driving everywhere. Building offices, homes, shops, schools and other buildings influences the building of roads, transit and other transportation modes. This relationship that can lead to safe, walkable, diverse and lively communities or out of control, poorly planned urban sprawl. Unfortunately sprawl has been winning and the public health is at risk.
An effort to combat the continual development of urban sprawl, smart growth development looks to solve this dilemma. The idea of smart growth concentrates its development around compact walkable centers within urban areas. The purpose of this is to avoid the growing sprawl through the implementation of walkable, bicycle-friendly and alternative transportation like b...
When the railroad first began, steam engines ran on coal; coal creates smoke which leads to even more pollution. Thankfully, railroad companies started using steam to power their trains. The same happened with the street cars that ran throughout the cities; originally, the only way people traveled to different locations by either walking or by horse and carriage. The horse and carriage ended up being replaced because of the amount of care the horses and the streets needed. Construction played its part in creating new and exciting moments; with the creation of skyscrapers, which contained about four to five levels, these buildings helped lower the amount of people in the streets. Sadly, any construction that took place left dust particles and medal shavings hanging in the air; this led to health problems in those who walked or lived close by. Some more problems that are caused by the factories and other large corporations, mostly affected the workers themselves; the reason for this is that the factory owners began to incorporate new and upgraded machinery to increase production and they themselves came with many new
First of all, as I explained before, the more urban development happens, the more the city has to pay for. Of course, if this sprawl continues at the same rate, civilians would have to pay more taxes in the future. Furthermore, although transit is being majorly developed, the sprawl is also making cities more dependent on automobiles. For example, to go somewhere nearby, it is much easier to go in a personal vehicle rather than having to wait for a bus. As the city develops more, it is creating more nearby places to go to. This is how suburban sprawl could result in me becoming more dependent on my personal automobile in the future. Lastly, sprawl can lead to climate change and air pollution in the future. This is because it requires energy for things like construction and automotive transit which results in burning fossil fuel. With the increased amount of fossil fuels burned, it would also increase the amount of greenhouse gas emissions. That is how suburban sprawl could affect my
Cities all over the world are developing. As war ended in 1942, a significant number of people move to the city because they want to improve life. This urbanization process is causing a number of problems and should be met by sustainable development policies. In the beginning, it is important to know the definition of sustainable development. There are some definitions for sustainable development, but simply they say that sustainable development is a development which using resources now and preserving them for future generations (Adams, 1999, p.137). This concept has been agreed internationally at a Rio Conference in 1992 to be implemented by all government policies which mostly known as “Agenda 21” principles (Adams, 1999, p.141). This paper will show that traffic jams and housing problems caused by urbanization can be met by sustainable development policies. The structure of this paper will first explain the situation that leads to traffic jams and housing problems. Next, it will elaborate the sustainable development solutions, implications for the solutions, and evaluations how effective the sustainable development solutions solved the problems.
The Negative Effects of Urbanization on People and their Environment As our world becomes increasingly globalized, numerous people travel to urban areas in search of economic prosperity. As a consequence of this, cities in periphery countries expand at rates of 4 to 7 percent annually. Many cities offer entrepreneurs the potential for resources, labor, and resources. With prosperity, cities also allow the freedom of a diversity of ways of life and manners (Knox & Marston, 2012). However, in the quest to be prosperous, increasing burdens are placed on our health and the condition of our environment.
The theory was proposed by the publication of the book Garden Cities of To-morrow. The author proposed more than harmony between man and nature, in fact he introduced a policy to maintain the social balance, threatened by the sordid conditions of urbanization of English folk layers during the nineteenth century. This concept of urbanization beyond plan forms, functions, financial and administrative resources of an ideal, healthy and beautiful city mainly considers the satisfaction of the masses, controlling their concentration in metropolitan centres. Initially, Howard uses diagrams to warrant the creation of a garden city.
There are three kinds of development in megacities we would like to explore in this paper, they are sustainable development, economic development and human development. Those kinds of development face many problems in megacities. In 1950 there were only New York and Tokyo as megacities and now in this 21 century the number of megacities are increasing.In 2013 noted there are 28 megacities (New Geography, 2013). Industrialization in developing countries is the main reason why the poor peasant in rural area moved to the cities in the name of better job and higher wages. This urbanization will change the population proportion which is decreasing the rural population and on the other side, increasing the population of urban areas. This continuing movement will inevitably create big and even bigger community in the city and in the end a megacity will be formed. This big number of population influences development of megacities.
In a world where over half of the human population calls a city their home, the need to restructure and revolutionize the way we design our urban environments has never been greater. Currently, the notion that these vast metropolises of metal, concrete, and sludge could one day be fully realized pillars of sustainability is certainly laughable. However, when these same cities are constantly growing and multiplying across the globe, all the while using a greater and greater chunk of our planet’s energy, this impossible task becomes a necessary focus. To strive towards the closed, continuous loop of “true” sustainability could greatly alter the image of the modern city. Any improvement over the current state of urban affairs could carry weight, and even if that goal is not entirely fulfilled, the gained benefits would be immense.
I consider it’s not very appropriate to say “sustainable X” because these “X”s are only sub-systems which exchange energy and materials within a larger overall system. Only a single small system reaching the “equivalence of sustainability” (if this ever exists) doesn’t mean the whole system is sustainable. That is to say, the hierarchy and complexity of systematical thinking must be taken into consideration of the definition of “sustainable city”. We should evaluate the city-system in its ecosystem and context. Sustainable is used to describe the overall complex system in which there are sub-systems exchanging energy and
With the development of urbanization, an increasing number of social problems have emerged. These problems will decelerate the urban development, however, there are many ways in which sustainable development can reduce the impact of these urbanization problems. “Sustainable development seeks to improve the quality of human life without undermining the quality of our natural environment” (Adams, W.M. 1999). Actually, sustainable development can partly solve the urbanization problems, for it can reduce the impact of the problems such as traffic jam, housing shortage and severe pollution, but it is difficult to completely solve these problems in a short time.
If a person living in a city living in the city goes out for a walk, they will see that everything is perfect. The air is fresh and the beaches are clean and the sea waters look crystal clear. Even though everything looks right, problem still persists in other parts of the world. A lot of people’s thinking about the environment is confined to their surroundings and where they live, so they do not realize that the environment is in danger because of their actions. What should come into their concern first is that even though everything looks perfect, their community and surroundings are also polluted. In cities, the streets and the parks may be sparkling clean, there is no guarantee that the air is clean. In large cities, megapolises and metropolises, a major mode of transportation are cars. Car usage produces a lot of carbon dioxid...
We all know the urbanization rate is an index to value the development of a country. However, though urbanization provides great convenience to some individuals, it also brings about negative effects. Problems such as pollution, overcrowded and the high unemployment appear during the process of urbanization and they are hard to cope with. In face of the sequence of problems, a new way of development ----sustainable development was put forward. Just like its literal meaning, the word sustainability has something to do with continuity. It was used since 1980s and first appeared in Britain law in 1993. Sustainable development can help solve parts of the problem caused by urbanization, including environmental damage, overuse of resources, and natural disasters.