University of Twente Student Theses


Crowdsourcing geoportals for rapid post-disaster damage mapping

Yulfa, Arie (2012) Crowdsourcing geoportals for rapid post-disaster damage mapping.

[img] PDF
Abstract:Rapid post-disaster damage mapping is important for emergency responses after disasters. Currently, many organizations and individuals have implemented this mapping method. However, those organizations and individuals have different missions and methodologies to create the rapid damage map within limited time. These may result in different data from different sources; hence, confusion occurs. In attempts to deal with such case, a geoportal - the medium for communication and crowdsourcing - as a method to collect data becomes the potential solution to overcome this problem, without necessarily interfering with the organizational missions and individual interests in rapid post-disaster damage mapping. This research is aimed at designing the architecture of crowdsourcing geoportals to rapidly create post-disaster damage maps by integrating different geographic data sources. For this purpose, we have developed a prototype to implement this architecture using Ushahidi, Google Map Maker, and OpenStreetMap since these applications have already adopted crowdsourcing systems, and are commonly used in creating geoportals. Phases of prototype development include analysis of users’ needs, identification of what a certain geoportal can function, implementation and, finally, evaluating the designed prototype. The designed geoportal prototype consists of four elements, namely reporting damage, creating a base map, creating a request map, and showing the latest information. We used several scenarios to evaluate if the prototype functions as expected. Through request map tool, geoportal prototype differs from other existing geoportals in creating rapid post-disaster damage maps, in the sense that it allows efficiency in mapping post-disaster damage area. The request will help contributors to prioritize their contributions and understand what and where to contribute. The result of this research shows that the design can be used as a model to take advantage of crowdsourcing in creating post-disaster damage map. Keywords Crowdsourcing, Geoportals, Rapid Post-disaster damage mappin
Item Type:Essay (Master)
Faculty:ITC: Faculty of Geo-information Science and Earth Observation
Programme:Geoinformation Science and Earth Observation MSc (75014)
Link to this item:
Export this item as:BibTeX
HTML Citation
Reference Manager


Repository Staff Only: item control page