Studying of Urban Environment Sustainability Indicators by Emphasizing on Value Engineering in Iran (Case Study: Mashhad Metropolitan)
Alireza alamdar sheykhian, Salman hasanvand, Maryam Ebrahimpour, Amir Ranjbar, Mohammad hossein Nurani

Abstract
The sustainable development concept is one of the basic issue in 21 century . one of the its aspect is urban environment . In 21 agenda 1 has been considered special role for municipalities as local government in implementation sustainable principles . in future development document of Mashhad , creation of healthy environment is one of the basic objectives . Also, has been studied urban development with emphasis on sustainable principles. Municipals are connected to urban issues such as : transportation , green spaces , waste collection , traffic , urban sewage , land-use locating and etc . So value engineering is as efficient and effective technique for reducing costs and increasing environment quality. Therefore value engineering have special place in planning of urban issues. The propose of the paper is, studying the role of value engineering in Mashhad Municipal and urban planning.

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