M Razazzadeh - Department of Environmental Engineering, School of Environmental and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran
M Monavvari - Department of Environmental Engineering, School of Environmental and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran
A Gharagozlo - Department of Environmental Engineering, School of Environmental and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran
N Khorasani - Department of Environmental Engineering, School of Environmental and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran

Introduction:Esfahan with 24 square meters of green space per capita,has the highest ranking in the major cities of Iran .Although these figure may seem desirable, in actuality major portions of the parks in thise city are located in the edge of zayanderood river so that only residents in these areas have optimal opportunity to use of these parks and for a large number of citizens Possibility to travel to these parks is relatively small.such disparity between statistics and actual usability comes mainly from the Inappropriate location of the parks.Material and method:Using the network analysis method of GIS, this study analyzed pedestrian accessibility to urban parks and the subsequent serviceability of them in part of region 6 of Esfahan . Study results indicated that first, the total service area of the urban parks identified by network analysis was 339/5 hectare, which was approximately half of the service area analyzed by the conventional simple buffering method(730/5 hectare). Next, the spatial distribution of parks in the 7 district (Bagh negar, Feyz, Abshar, Saadat abad, Mosala, Takhte foolad va Hemat abad) of this region was evaluated in terms of serviceability indices such as service area ratio, service population ratio, and time of accessibility.Result and discussion:Finally, urban parks in this region were found to have been inadequately distributed in relation to population and density. Parks serviceability in the districts of Baghnegar, Feyz and Abshar is more appropriate but in the district of Saadat abad was determined to be the most problematic . Considering the actual locations of parks and the corresponding local population and time of accessibility, the approach conducted in this study provided practical ways of understanding and managing spatial distribution of urban parks.

urbun parks, spatial distribution, network analys, accessibility, serviceability