pattern of urban services concentration and its environmental impacts on tehran city

نویسندگان

فرانک سیف الدینی

دانشگاه تهران ، دانشیار دانشکدة جغرافیا حسین منصوریان

دانشجوی دکترای جغرافیا و برنامه ریزی شهری، دانشکدة جغرافیا، دانشگاه تهران

چکیده

one of the indicators of sustainable urban growth is the balance of development between different regions of the city, quality of the environment, equality in job opportunities, housing, basic services, social infrastructures, and transportation in urban areas. urban sprawl has some negative consequences. some of the consequences that are frequently mentioned are destroying green spaces, high cost of infrastructure, private car dependency and consequently, increasing level of traffic, use of energy, pollution and higher temperature and decreasing water quality. this article examines the relation between urban sprawl, concentration of urban facilities and environmental quality variables. using satellites images, and other data, indicator of accessibility to urban services, indicators of quality of environment including air pollution, land cover vegetation, temperature, sounds pollution have been obtained. the spatial analysis of the distribution of urban services shows concentration of urban services in center of city and its significant correlation with environmental indicators. the results of study show that urban sprawl, concentration of urban facilities in central parts of city, use of private car to commute to urban facilities, and pattern of infrastructure investments have had numerous environmental impacts. the results of study can help policy makers and decision makers to establish and implement policies to prevent the negative impacts of urban sprawl.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

environmental impacts of urban utility tunnel construction (case study: urban utility tunnel district 22 of tehran)

urban facilities are necessary components of cities. in all grown and developed cities of the world there are tremendous network of facilities such as water and electric ties, water sewage drainage, water piping and gas piping. that has not been installed in proper depth underground and locations and with growing of the cities and consumption of population. they need to be replaced by excavatin...

متن کامل

an investigation of the impact of self monitoring on langauge teachers motivational practice and its effect on learners motivation

the central purpose of this study was to conduct a case study about the role of self monitoring in teacher’s use of motivational strategies. furthermore it focused on how these strategies affected students’ motivational behavior. although many studies have been done to investigate teachers’ motivational strategies use (cheng & d?rnyei, 2007; d?rnyei & csizer, 1998; green, 2001, guilloteaux & d?...

tehran metro's environmental graphics and its impacts on culture and identity

the main tasks of ‘environmental graphics’ have been designated as: provision of instructions and essential information, environmental embellishment, ease of interconnection and visual identity establishment all of which can affect the culture and identity of the audience through an unconscious process. if we consider, on the one hand, the crisis of identity and cultural problems of the present...

متن کامل

Bioenergy and Its Environmental Impacts

1Guangdong Institute of Eco-Environmental and Soil Sciences, Guangzhou 510650, China 2School of The Environment, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China 3School of Civil & Environmental Engineering and Singapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 4School of Environment & Energy, Peking Univ...

متن کامل

Theoretical Genealogy of Inner-city Highways and Analyzing Its Impacts on Surroundings

Urban highways, as one of the most important sectors of transportation, have always been one of the most challenging, both in terms of budget consumption and its spatial, social, economic and environmental impacts on the city. It has been urban elements. To this end, this study analyzes the impacts of inter-city highways, examines the theories of how to deal with this spatial element, as well a...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
محیط شناسی

جلد ۳۷، شماره ۶۰، صفحات ۵۳-۶۴

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023