نتایج جستجو برای: tehran metropolitan area
تعداد نتایج: 618418 فیلتر نتایج به سال:
One of the Challenging problems of Tehran metropolitan region is Air pollution. Suburban expansion in the form of sprawl patterns have created the travels and transportations, due to the dependence on personal vehicles contributes more than 85 percent of creators of air pollution. The article studied the role of transportation in emergence of urban air pollution in Tehran metropolitan region, h...
tehran has been facing water shortage challenge for decades and it has not hesitated to exploit neighboring watersheds. rising demand and limited resources might make water crisis a strong possibility in the near future. an accurate and applied analysis of tehran's urban water system (uws) would be the first step to be taken to prevent such a crisis. this research is an effort to make an a...
This research is an attempt to explore the nature and characteristics of urban travel behavior in metropolitan area Iranian capital, Tehran. To this end, using perspectives 822 participants via a questionnaire survey, we assessed six major Travel Behavior Components (TBCs)—namely, mode, time, destination, frequency, choice, purpose—from lens five different sociodemographic characteristics—that ...
Worldwide, metropolises of today are often prone to damage from natural hazards by various reasons. One of the slope instabilities that causes financial and human losses annually on socio-economics and the environment are landslides. There are tens of landslides that occur in different parts of the country each year, which threaten more residential areas, roads and facilities. In this study we ...
BACKGROUND Low birth weight (LBW) is considered as a major multifaceted public health concern. Seventy-two percent of LBW infants are born in Asia. An estimation of 8% LBW infants has been reported for Eastern Mediterranean region including Iran. This study investigated contributory factors of LBW in singleton term births in Tehran, Iran. Tehran is a multicultural metropolitan area and a sample...
The aim of this study is to produce landslide susceptibility mapping by probabilistic likelihood ratio (PLR) and spatial multi-criteria evaluation (SMCE) models based on geographic information system (GIS) in the north of Tehran metropolitan, Iran. The landslide locations in the study area were identified by interpretation of aerial photographs, satellite images, and field surveys. In order to ...
The main objective of this research is to find the extent to which the minimal variability Ordered Weighted Averaging (OWA) model of seismic vulnerability assessment is sensitive to variation of optimism degree. There are a variety of models proposed for seismic vulnerability assessment. In order to examine the efficiency of seismic vulnerability assessment models, the stability of results coul...
tehran as the biggest metropolitan of iran is located in the areas that are at high-risk of earthquake. what increases tehran's vulnerability toward earthquake is the urban physical expansion in vaious dimensions. since the analysis of the mentioned expansion is a solution to many urban problems, the effects of tehran expansion in increasing vulnerability to earthquake has been surveyed in...
OBJECTIVES The aim of this study was to describe the temporal determinants of meningitis incidence in the population living in the Tehran metropolis. METHODS All cases of meningitis reported to health districts throughout the Tehran metropolis from 1999 to 2005 were abstracted from patient files. Referral cases (patients who did not reside in the Tehran metropolis) were excluded. For each yea...
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