Geography And Urben Planning
Mmohammadreza Mirsaeedi; Fereshte Ahmadi; Moslem Seyed Alhossaini; Amirhossain Shabani
Abstract
The goal of this survey is the analysis of the influence of the city spatial oraganization and the study of the city commercial functioning in relation of eachother. The mono centrality and the poly centerality of the cities have an important influence on the trip distances, preventing the waste of time ...
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The goal of this survey is the analysis of the influence of the city spatial oraganization and the study of the city commercial functioning in relation of eachother. The mono centrality and the poly centerality of the cities have an important influence on the trip distances, preventing the waste of time and energy in the cities. The vehicles produce the greenhouse gases and increase the earth warming in a long run. The recognition of these factors can decrease the amount of greenhouse gasses and prevent the global warming.The type of research is practical and the analysis method is analytical descriptive. This research has been done after the scientific studies in order to estimate the greenhoause gases on the suggested Clean Development of CDM. The Mashhad metropolis spatial organization has been studied in two scenarioes. The first scenario, namely the mono centrality of the existing city and the other scenario, alongwith triple centrality spatial organization,along the city structure have been considered. The Mashhad metropolis balanced spatial organization has decreased the green houase gas emission up to 43 percent for the private cars . The average trip distance, traveled by the private cars in balanced spatial organizition is decreased about 4 kilometers. The decrease of the greenhouse emission rate for each passenger is 7.9 kilogram CO2 . The distinction and innovation of this research is to examine the relationship between the centrality index in the spatial organization of metropolises and the amount of greenhouse gas emissions.
