The concurrent rise of Internet-connected smart phones, access to global navigation satellite systems, and social media networks have created a geospatial data revolution in cities around the world. The smartphone’s ability to capture, compute and communicate data in collaboration with platforms such as OpenStreetMap, and the power afforded to organize mass participation by social media, have imploded traditional data vacuums and access protocols in cities around the world.
It has now been proven that when it is shared in an open manner, crowd-sourced geospatial media collected by residents can be used to solve real-world engineering challenges. Furthermore, the instantaneous nature of data sharing between mobile devices enabled by social media networks means that cities can harness this information to respond to critical events in real-time.
This public lecture explores the design, creation and deployment of the world’s first real-time megacity flood map PetaJakarta.org in Jakarta, Indonesia. Using a geosocial intelligence approach to megacity flooding, the project engages social media, citizen journalism, digital sensors and government alerts to plot locations of flooding in real-time on a free and open map. By connecting both informal and formal data sources, the map acts as a cartographic interface for civic co-management, enabling individuals, communities, government agencies and NGOs to respond more effectively to flood events caused by the annual monsoon rains.
PetaJakarta.org is now used operationally by the Jakarta Emergency Management Agency to collect and communicate locations of flooding with residents. In conclusion, the presentation will examine how these methodologies and techniques can be applied to different application domains and geographic regions, as a platform for information gathering and sharing in cities around the world.
About the Speaker
Dr Tomas Holderness is a Geomatics Specialist and Chartered Geographer at the SMART Infrastructure Facility, University of Wollongong where he leads the Open Source Geospatial Lab and co-directs the PetaJakarta.org project with Dr Etienne Turpin. His research focuses on understanding the response of megacities to extreme weather events, through the development of new geographical information systems. His research into the use of social media to crowdsource
real-time flood information in Jakarta has been featured in the World Disasters Report, the Wall Street Journal, the Guardian and National Geographic.
This lecture is jointly organized by Melissa Cate Christ (School of Design, PolyU), Dr. Daisy Tam (Department of Humanities and Creative Writing, HKBU) and Open Data Hong Kong and supported by the General Research Fund HKBU12609215 and HKBU Faculty Research Grant.