Presenter : Priyadharshini J

Type: Oral

2014 statistics indicate that 41.8 million metric tons of E-waste is generated globally per annum, which is becoming a great concern in today’s world. In the process of E-waste management, attention needs to be paid towards collection and transportation which itself requires 60-70% of the total cost. Hence there is a need for mapping the origin of such wastes, suitable sites to dispose them and determination of optimal routes to transport to disposal sites.
This abstract presents a work carried out using OS Data and OS software (QGIS) to identify optimal routes for transportation of e-waste generated in Chennai city to the suitable sites in Thiruvallur and Kancheepuram districts, south India, identified using ArcGIS.
To accomplish the task the following steps were involved:
 Data conversion from ArcGIS (proprietary) to QGIS(open source), mainly pertaining to data and maps of the suitable disposal sites in Kanchipuram and Thiruvallur districts.
 Location of e-waste generating sites in Chennai city in QGIS
 Extraction of road network in QGIS using open street map layers (open source data).
 Determining the various cost factors for optimal route selection
 Route optimization using pgRouting module in QGIS.
Thus, the highlight of this study is the effective application of an optimal routing model to achieve the minimum cost/distance/time efficient collection and transport path for e-waste management. This was achieved by linking a proprietary GIS (ArcGIS) and an open source GIS (QGIS) in conjunction with freely available satellite image data (Landsat OLI data) and road networks from Open Street Maps.

Keywords: QGIS, PgRouting, E-waste disposal sites, OSM