Sustainable Urban Development by Expanding the Green Roofs to Improve the Urban Environment Quality (Case Study: Karaj, the fourth most populous City in Iran)

Henninger, Sascha and Moghaddam, Maral (2019) Sustainable Urban Development by Expanding the Green Roofs to Improve the Urban Environment Quality (Case Study: Karaj, the fourth most populous City in Iran). IS THIS THE REAL WORLD? Perfect Smart Cities vs. Real Emotional Cities. Proceedings of REAL CORP 2019, 24th International Conference on Urban Development, Regional Planning and Information Society. pp. 703-711. ISSN 2521-3938

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Abstract

Global climate change, which is also occasionally a result of urbanization, has brought the relationship between humans and the environment to a serious discussion. Humans have eroded the balance of nature because of incorrect use and the increasing rate of energy consumption and energy resource constraints. In addition to the environmental pollution and waste of human capitals, there is not only the danger of environment destruction, but also the future of human life is at risk. Iran is not spared from this global change and even because of various issues including e.g. geographical factors (a large part of Iran is located in hot and dry desert climate), energy consumption patterns, fossil fuel resources, is grappling with climatic and environmental problems more than other countries. Growth in annual consumption of energy has led the need to adherence to the goals of sustainable urban development to be more and more recognizable. Karaj city which is a metropolis in Iran and rapidly growing, has also the same situation. Karaj is the center of Alborz- the 31st province of Iran - and is located 34 kilometers west of Tehran. Unprecedented increase in the population of the city- Karaj is the forth populous city in Iran with a population of more than 2,000,000 people- and other urban issues today, have been followed by many problems including environmental onessuch as heavy traffic, noise and air pollution. Therefore, it seems to be a good solution for these problems helping Karaj to achieve the goals of sustainable urban development by rooftop greenin. Green roofs can have major environmental impacts on contemporary cities due to improve and sustain the quality of urban environment. That is why the purpose of this project is the introduction of green roofs as a strategy for sustainable urban development particularly in the city of Karaj. The project has been started to be processed. The environmental sustainability of Karaj should be assessed with the environmental and consumption data like e. g. annual energy consumption, air pollution, per-capita green space. Five regions have been chosen in different city areas based on the relation between built area volumes (buildings) and green spaces (each of them is one square kilometer at least). Based on this fact that climatic situations, framework shape and city components are the most important factors, which affect the performance of green roofs in an area, these areas have been simulated by the numeric simulation modelEnvimet. Afterwards, according to obtained statistics, there would be a particular program (Karaj environmental strategic plan) to make use of green roofs. This program will function based on the factors: regional climate and micro-climates, annual rainfall, average solar radiation energy, drought periods, frost days and wind direction as well as wind speed. In the end, specific criteria for future construction of green roofs and existing buildings would be suggested and implemented in a sample neighborhood.

Item Type:	Article
Uncontrolled Keywords:	green roofs, urbanisation, sustainable urban development, Karaj city in Iran, Envimet
Subjects:	G Geography. Anthropology. Recreation > GE Environmental Sciences H Social Sciences > HD Industries. Land use. Labor
Depositing User:	REAL CORP Administrator
Date Deposited:	28 Jan 2021 11:54
Last Modified:	28 Jan 2021 15:52
URI:	http://repository.corp.at/id/eprint/507

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