Open Data Reuse, Recycling and Sharing as Potential Solution to Data and Information Resource Inadequacies

. This paper explores the reuse, recycling and sharing of open data (OD) as a potential solution to bridge gaps in existing baseline data and information in areas with scarce data resources. It focuses on open data generated during disasters, and analyses how these voluminous ‘free disaster data,’ such as social media posts, images, damage assessment reports, etc., could be reused and recycled to serve purposes other than emergency response and relief. To illustrate this, the paper makes use of a previous research that analysed how the open data of Super Typhoon Haiyan, the hydrometeorological disaster which affected several nations, and gained both local and global attention, could be reused and recycled as inputs for development planning, especially in post-disaster recovery and rehabilitation, and pre-disaster mitigation and prevention planning.


INTRODUCTION
Information and communications technologies (ICT) are the impetus of this information age (Masuda, 1981) wherein data and information are the new raw materials (Maeng & Nedovic-Budic, 2007). Given this crucial role in the development and growth of societies, it may be said that data and information are the most valuable commodities of planning (Lord, 2012).
As an inherently knowledge-intensive exercise (Goodspeed, 2011), planning requires a steady stock of readily available and reliable data and information that could provide causal knowledge (Wildavsky, 1973) that is needed to support strategy development and inform decision-making.
Fortunately, current ICT advancements are able to fulfill this demand through new and innovative data collection technologies and techniques, and wider data distribution channels (Sustainable Development Solutions Network (SDSN), 2015), which has made data generation and exchanges easier and faster. However, this is a privilege that is not enjoyed by all due to disparate development conditions and unequal distribution of resources (Graham, 2002). These conditons pose limitations and create tensions, especially in developing regions (Maxwell & Reuveny, 2000), where varying issues and interests abound and compete for the allocation of scarce resources. These areas struggle to sustain and boost growth and development while also trying to address other pressing issues, such as climate change, environmental hazards or disasters (UNISDR & ESCAP, 2012). As a result, the obvious and perceptible problems get prioritised, while other "trifling" issues, such as the need to improve one's baseline data and information or geospatial data infrastructures, end up filed away and forgotten until the moment of necessity presents itself again.
Although data and information only form a part of the requirements for promoting and boosting one's growth and development, it plays an important part in accurately identifying vital concerns that must be put on top of the agenda. It is also required for monitoring and evaluating the performance and effectiveness of implemented programs and strategies so that adjustments could be made accordingly in order to avoid further resource wastage, which is crucial for disadvantaged communities. As such, greater attention must be accorded to these data and information gaps if we were to plan effectively and efficiently towards promoting sustainable development, and safeguarding achievements and gains.
In response to the issue, the paper offers an insight on how present ICT trends and developments could help deal with the problem, and explores potential alternatives that could ease data and information resource inadequacies, such as harnessing the potential of open data (OD). The next section discusses factors contributing to the problem, including conceivable hindrances to its resolution. It is followed by a case study that presents a practical application of OD reuse, recyling, and sharing, and concludes by discussing the perceived benefits and challenges that could be the subject of future investigation.

DATA AND INFORMATION RESOURCE INADEQUACY ISSUES
Data and information gaps come in various forms such as being unavailable, inaccessible or having questionable integrity and quality (World Bank, 2014). While it is obvious that the absence of data and information can pose serious consequences, the utilisation of poor quality data and information may also lead to undesirable outcomes. Both were witnessed in past disaster events, such as the 2010 Haiti Earthquake where unmapped areas and roads had to be traced to aid emergency response, and the 2013 Typhoon Haiyan in the Philippines, wherein storm surge hazard maps underestimated the maximum inundation levels, which led to a false sense of security and complacency.
The aforementioned examples showed that the lack of information slowed down emergency response and relief efforts, while the use of imprecise data aggravated the disaster's ill effects. Both of these unfortunate situations have contributed to the larger number of casualties, and could have been averted if better information had been available and accessible.
This problem is not only evident in disaster management, its crucial effects also extend to other components of development: social services, economy, etc., and could could translate to poorer services, imbalanced growth and development trends, and although indirectly, lesser investment opportunities.
In everyday life it may seem that data and information issues do not pose grave immediate threats nor evoke a "real" sense of urgency, but the examples illustrate that leaving it unaddressed could impact future events. It also stresses the importance of having and sharing reliable data and information in order to fully understand various issues, and avoid making erroneous choices.
This problem is usually more critical in underdeveloped and developing regions where baseline datasets and information are scarce and often outdated. Understandably, there is a cost in addressing these issues, and it would require upfront investments being made. This cost becomes a major inhibiting factor for those that are typically plagued by this problem. For in most cases, the creation and access to data and information comes at a price tag that these lower and middle-income economies could hardly afford.
These are great challenges that could discourage and hinder willingness to genuinely address the issue, but the need to protect development gains and societies' well-being, as well as ensure the sustainability of progress, should be accorded with much greater significance, and this can only be attained when there's a full understanding of issues and situations so that the appropriate decisions and actions are made with sound judgment.

REDUCE, REUSE, RECYCLE: THE POTENTIAL OF OPEN DATA AS SOLUTION TO DATA AND INFORMATION INADEQUACIES
There is no skirting around the fact that resources must be allotted to resolve data and information inaedquacies. Fortunately, recent ICT developments could be utilised to devise more affordable and innovative solutions to this problem.
With the proliferation of the internet and the World Wide Web, data and information creation, access, and sharing have become convenient for all, especially the public (Stauffacher, Hattotuwa, & Weekes, 2012). These incessant technological advancements have also led to the breaking down of physical boundaries. Previously, data and information sharing have been confined within common spaces, but now it is possible to access and share data and information even when you are in a different geographical region. This has been observed in the recent disaster events where in people from all over the globe actively participated in disaster information exchanges, as well as "remote disaster response efforts." The ease of access and sharing is a great feat made possible by modern technology, and it has allowed greater civic engagement and unrestricted information exchanges that has further led to an exponential growth of freely accessible information (Stauffacher, Hattotuwa, & Weekes, 2012) such as ODs.
In order to demonstrate how ODs can be reused and recycled for purposes other than its original intent, the case of Tacloban City in the Philippines was selected. The reasons for this are (1) its involvement in a recent event that attracted immense attention and efforts to the area, (2) the availability of widespread materials generated by various volunteers and organisations around the globe, and (3) access to official maps and information supplied by the local authorities.

TYPHOON HAIYAN QUICK FACTS AND FIGURES
In the early weeks of November 2013, Typhoon Haiyan, a Saffir-Simpson Category 5 typhoon, struck the Asia-Pacific region. It affected several countries including the Federated States of Micronesia (FSM), Philippines, Vietnam and China. Nonetheless, the massive destruction was concentrated in the Philippines where 9 out of 17 administrative regions of the country were disturbed. It was later reported that Haiyan claimed approximately 6,300 lives and caused immense damage amounting to an estimated $2B US dollars (National Disaster Risk Reduction and Management Council (NDRRMC), 2014). Tacloban City in the Province of Leyte, Philippines suffered the most due to the unexpectedly high inundation from the storm surge, which was further aggravated by the robust winds. Despite carrying out pre-emptive evacuation, the number of casualties still soared as some of the evacuation centres were also submerged (ABS-CBN News, 2013). As shown in Table 1, in Tacloban City alone, there were 2,678 casualties, which accounts for the 42.5% of the total number of fatalities in the country, and nearly 60,000 homes were destroyed and damaged causing the displacement of families, and leaving many parents and children bereaved.

DATA DELUGE: MINING HAIYAN'S VOLUMINOUS OPEN DATA
Recent technological advancements have allowed both the authorities and the public to forecast imminent disasters, and prepare for it. The case of Typhoon Haiyan was no exception. Despite the soaring number of casualties brought about by the disaster's overwhelming destruction, it was a well-anticipated event whose enormous magnitude piqued various interests, and captured both local and global attention and concern. Countless contributors from all over the globe, and all walks of life took advantage of the world wide web to collect and share data and information regarding the super typhoon, which eventally led to the generation of innumerable ODs. These ODs came in various formats and from different platforms such as text-based or image-based social media posts, interactive disaster simulation models, satellite images as well as dynamic maps.
These various data and information became useful during the course of the disaster as it aided preparedness, and response and relief efforts. However, after the catastrophe, many of these ODs and information will not be utilised, but will still remain in the wild. Given that many of these contain significant information that were once outdated or inaccessible, especially to those with scarce data and information resources, it may be worth considering to recycle and reuse these, and harness their potential.
With the primary objective of identifying how ODs generated during disaster events could be applied for other purposes other than the original intent, Typhoon Haiyan's case was used and its ODs were later collected manually using search engines, RSS feeds, social media, etc.
The resulting collection had diverse characteristics, which offered a wealth of information, but required tedious work to organise, and analyse prior to application and use. These were simplified through tabulation as shown in Table 2, which contains a partial list of the collected ODs. These were later grouped into different typologies using taxonomy and ontology, such as Figure 1, which provided a visual representation of the collected data's typologies and relationships. This process of grouping and reorganising of the data helped uncover similarities in the nature of the collected data, Source: National Disaster Risk Reduction and Management Council (NDRRMC), 2014 and its potential usage. Most of the collected ODs were spatially-enabled, and had similar characteristics to the data requirements of local development planning. As such, reusing ODs as alternative inputs for local development planning of the typhoon afflicted area could be one of the practical applications of disaster-related ODs, and a suitable model for OD reuse and recycling.

HAIYAN'S OPEN DATA REUSE AND RECYCLING
In the Philippines, land use planning is commonly used by local authorities to guide area development. Coincidentally, there is also a prevalence of gaps in the existing planning datasets and information stock. Bearing this in mind, Haiyan's ODs were tested as alternative inputs for planning. This would also determine whether the retrieved open data may be reused and recycled to serve another purpose, and if it could help bridge existing data and information gaps. Given the huge variety of the ODs, only those data that were spatially-enabled, and specfic to the study area were chosen to be used. These data are listed in Table 2, and were applied as inputs in a land use planning exercise that is used to evaluate land suitability, commonly known as sieve mapping. It is done by placing maps over another to produce new images that would reveal potential opportunities and threats for the area that is proposed to be developed.
In order to carry this out, the collected ODs need to be combined with other relevant data from the study area, such as administrative and hazard maps. These were obtained from the local and national authorities. (See Figures 2 and 3.) By combining these official maps and the open data collected, new maps were generated. (See Figures 4 and 5.) Unfortunately, the collected ODs and the information supplied by the authorities came in varying formats and scales, which restricted its manipulation. As a consequence, scale has been sacrificed during the sieve mapping. Thus, the resulting overlays are more of approximations for illustrative purposes. Nevertheless, the resulting overlays fairly give us an idea how an area might have changed due to the recent disaster. It is also useful to highlight issues and problems that might have been previously overlooked during plan creation or review. Any finding from the new overlays could be later verified and further studied prior to making the necessary amendments in existing plans.
In the case of the generated maps using Haiyan's OD, it highlighted the weakness of the previous storm surge hazard map that have only illustrated modest levels of inundation as depicted in Figure 3. Comparing this with Figure 4, the overlay of the administrative map and the storm surge simulation map from Harvard's World Map site clearly shows that inundation could, and actually extended beyond the identified areas in the official storm surge hazard map. The OD map depicted a scenario that was closer to the actual flooding that happened during the typhoon.
Additionally, Figure 5, the overlay of the storm surge model, crisis information and Tacloban's proposed land use, highlights other potentially hazardous areas, such as areas designated as future residential zones, that could be further evaluated during future amendments.

CONCLUSION
Scarcity of resources has been the classic excuse for incompetence, slow growth or stunted development. Though it may be true that the availability of resources such as data, information and intellectual capacities influence one's own ability to be comprehensive (Lindblom, 1959) when tackling problems, there are novel ways to deal with these inadequacies.
In response to these insufficiencies in data and information, the example cited in this paper investigated how open data can be reused and recycled to fill in these gaps. It analysed the case of Typhoon Haiyan in Tacloban, Philippines to show how freely available and publicly accessible data that were generated during disaster events could be retooled for local development planning, especially in pre-disaster mitigation and prevention, and post-disaster recovery and rehabilitation scenarios. It could be useful in aiding planners to craft more risk-sensitive development plans that would integrate appropriate disaster management strategies for their respective areas.
Various ODs of Typhoon Haiyan were collected, but priority was given to those with spatial references. These were utilised as inputs in a mock sieve mapping, an exercise that was commonly utilised for land use planning within the study area. The resulting overlay maps have highlighted some inconsistencies in the proposed land use plan and existing hazard maps, which might have been overlooked during plan creation and review, or could have been altered by the recent event, and may be investigated further in future planning exercises and research. Even though it was a test case, it demonstrated the possibility of reusing and recycling open data as an alternative input, specifically in situations where data and information resources are limited.
However, reusing and recycling ODs is not without challenges. Despite its potential, various concerns may arise, such as the need for data validation, source credibility check, the addition of requirements for technical capacity building for data manipulation, interpretation and utilisation, and for ensuring interoperability among different datasets. These concerns underline the problem's complexity, and underscores the fact that while scarcity of resources poses limitations, its abundance does not necessarily translate to more effective plans and strategies.
Such complex problems will always be difficult to solve using traditional methods and policy-making as more often than not, existing resources are not as unbounded as it assumes it to be. This is not just true for money and time, but also for knowledge and intellectual capacities (Lindblom, 1959). Innovation and education can help overcome these. Teaching communities about the significance of data and information in decision-making, and promoting a culture of data appreciation, literacy and sharing will enable communities with minimal to no technological resources to still benefit from modern ICT advancements, and adapt using local means to create and retrieve pertinent information required to wield sound judgment, and take appropriate courses of action until such time that better data and information infrastructures could be afforded.