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Mapping Korail Bosti: A GIS Case Study
- 1. Mapping Korail Bosti: A case study in GIS Rebecca Stevenson Anjali Sarker July 18, 2013
- 3. BRAC Manoshi map of Korail Slum (in 2007)
- 4. BRAC Manoshi
- 5. 18 hours… 4 interns… 2 smartphones… 0 taka…
- 6. Korail Slum community resources map
- 7. Step 1: Design the questionnaire • Split into 2 surveys
- 8. Step 2: Collect and send the data
- 9. TEAM: Rebecca Stevenson, Mahzabeen Mahfuz, Cyrus Khan, Mahmoud • Engage Manoshi guide: Tapan Bhai • 18 hours over 3 weeks in the slum • Divided hand-drawn map into sections • Stay together in a group for collection Step 2: Collect and send the data
- 10. TEAM: Raniya Shams, Anjali Sarker, Rebecca Stevenson, Farah Sarwar, Mahzabeen Mahfuz Step 3: Store and analyze the data
- 11. Step 3: Store and analyze the data
- 12. Questions raised by this digital survey map • Why are the health clinics clustered together in one area? • Why does bkash center 2:4 have twice as many daily customers as the others? • Why do areas 3 and 4 have so few students, but twice as many community and political offices? • Why are the most long-standing clinics the only two that also serve as schools? In this case, questions are more relevant to us interns, who have no prior experience in the slum. In an area where BRAC has little knowledge, this particular survey would be more useful.
- 13. Challenges of digital data collection • Usual data collection challenges – Unique identifier – Appropriate questions – Informed survey source • Specific to software – Design of survey • Make sure answers must be saved – Dependent on internet for geocode • Specific to this project – Scheduling – Conditions – Buy-in and understanding of project goals
- 14. BEP Microfinance HNPP WASH CEP Step 4: Data dissemination
- 15. Challenges of digital data analysis, aggregation, and dissemination • Data storage – Data correction impossible in ODK – Limitation on free data storage • Data preparation – Multiple surveys made aggregation more time consuming – Difficulties due to some unsaved answers • Making sure people pay attention!
- 16. Why go digital? Data collection
- 17. Why go digital? Data Presentation • Easily understood information • Quickly understood information • Standard framework for BRAC programs • Community Engagement Digital maps cannot replace paper maps, but can supplement them
- 18. Why go digital? Data Presentation Combined knowledge Location specific management Real time updates Engage world community Not just a map, but GIS
- 19. Applications of digital maps New projects • Community resources • Infrastructure conditions • Health and sanitation conditions • Social society maps • Disaster/crisis management Maintaining areas • Continually update location of schools in slum and how many students still attending class • Infrastructure conditions • Health monitoring • Crime reporting • Election monitoring CEP WASH DECC BEP HRLS Gender, Justice, and Diversity Safe Migration
- 20. One Billion Rising Crowd-mapping the world we want Cheetah Camp, Mumbai. (External to BRAC) 100 social innovators across South Asia SIL experience in GIS
- 21. Technology and Software • Open Data Kit – Accuracy 10 meters – Cheapest smartphone in Bangladesh: $55.80 (4,350 TK) • GPS tracking device – Accuracy 2-3 meters – $100-$500 (7,795-38,975 TK) • Open Street Map – Online platform for sharing GIS • Ushahidi – Platform for mobile surveying – Free and crowdsource
- 23. Methods of data collection • BRAC field workers • Crowd sourcing – Open Street Map • Barefoot researchers – Pukar (India) http://pukar.org.in/ – Research is a right • Mobile phone carriers – Work with them to get geocode of non-smartphones – Connect to mobile survey platforms • Awaaz.De • Ushahidi Pukar 2010 anthropometrics study
- 24. Recommendations Make digital mapping a habit
Notes de l'éditeur
- The drawback of paper maps,
- This means you don’t just know that there are 8 toilets out of 46 that are not functioning. You know WHICH ones. Depending on the survey, you may know what is wrong with them and how long it has been that way and who is responsible.. T The map is a starting point for fixing this problem.We can immediately see it on a map or make charts…
- Gives you solid direct for further research –what should be the scope and opportunitiesHelps management make better decisions
- Usual data collection challengesResponses not standardQuestions not quite rightInformants uncertain of answersGet a unique identifier!Specific to this projectSchedulingConditionsBuy-in and understanding of project goals (Explain how this may be in part a result of it being digital)
- There is not much here because really, one the data is collected, it is so simple to aggregate, analyze, and disseminate the information
- So why go digital:Reduces cost, Reduces time, Reduces expertise necessary, Increases access to information, Improves accuracy/ relevancy: not only of location, but time as well—can be done in real time, Standardizes multiple programs
- So the point of all this project is that we now how a tool which can be shared and information that can be easily accessed. The power of the information that we have is that it is combined information.
- Map of GO, NGO, and community facilitiesMap of sanitation conditionsMap of infrastructure conditionsMap of how long families have been in their housesMap of houses rented out by mazaans (slum lord)Maintaining areasContinually update location of schools in slum and how many students still attending classCondition of
- Brief examples of digital mapping –as involved with BRAC. THE POINT: This has been used before to effect. Mumbai map is the inspiration for this project.
- http://bdgsmarena.blogspot.com/2013/06/cheapest-android-phone-in-bangladesh-by_6.html