Evaluation of vacant lands for infill development by used of hybrid decision-making techniques and ARCGIS (case study: Ahvaz city)

Infill development is one of the main approaches against of Distribution and horizontal growth cities phenomenon. One of the main areas that the urban infill development to attention is Vacant and unused lands in urban areas .attention to High capacity of vacant lands in city can be Provide Our Way In achieving sustainable urban. Therefore, in this research, Purpose, is Evaluation of vacant lands for infill development based on the variables affecting urban development in Ahvaz city. This study in terms of goal is an applied and in terms of research method is descriptive – analytical. Initially was chosen Suitable criteria topic. In ArcGIS Suitable layers using fuzzy normalization and suitable functions have been normalized.in Order to weight allocation to the layers Dematel technique and network analysis process (anp) was used. In this way, relationship between the criteria calculate by Dematel technique by using of Excel and Matlab. Then after determining the criteria relationship, the weight of criteria calculate by ANP and multiplied in layers and For Conflation maps used Vikor in geographical information system (GIS) context and final map Prioritize vacant lands for infill development presented. First priority vacant lands with an area of 368 hectares and the priorities of the second to fifth, respectively is 1659 hectares, 1470 hectares, 530 hectares and 1745 hectares. Prioritization vacant lands in seven regions of Ahvaz city Based on the area is respectively that in the one region first priority 16 hectares, in two region first priority 25 hectares, in the three region first priority124 hectares, In four region, first priority 93 hectares, in the six region 99 hectares, in the seven region, first priority 99 hectares in the eight region, the first priority is 148 hectares.