| 205 Geoplanning Vol 5, No. 2, 2018, 205-214 Journal of Geomatics and Planning E-ISSN: 2355-6544 http://ejournal.undip.ac.id/index.php/geoplanning doi: 10.14710/geoplanning.5.2.205-214 POTENTIAL OF BIG DATA FOR PRO-ACTIVE PARTICIPATORY LAND USE PLANNING W.T. de Vriesa a Department of Civil, Geo and Environmental Engineering, Technical University of Munich, Germany Abstract: The presence of (spatial) big data presumes that citizens can more actively collect and analyse data for their own land use goals. This article evaluates that claim. Given that land use planning heavily depends on participation and citizens own contributions the core question is whether and how (spatial) big data can enhance and or complement current land use planning endeavours. The article starts by defining and conceptualising the various phases and objectives of land use planning. This is needed to verify where citizen participation can play a crucial role and where bottom-up influence can aactually emerge. The article is fundamentally explorative. It relies on evaluating existing websites and documentation which conceptualise (spatial) big data and smart application, with a particular emphasis on ‘smart people’. A number of specific cases are explored in order to verify how and in which type of land use planning activity citizens are actively. The evaluation indicates that many the smart application making use of big data are still largely driven by conventional hierarchical governance structures. The choice of data and associated analytics are still largely confined and opportunities whereby the designs of the new and alternative land use option by citizens are accepted or adopted is still limited. The take-home message is that adoption of big data for the purpose of empowering citizens is still limited. There probably needs to be more exemplary projects and various forms of capacity development and exploratory pilots before the full potential of (spatial) big data can be employed for bottom-up land use planning. Copyright © 2018 GJGP-UNDIP This open access article is distributed under a Creative Commons Attribution (CC-BY-NC-SA) 4.0 International license. de Vries, W.T. (2018). Potential of Big Data for Pro-Active Participatory Land Use Planning. Geoplanning: Journal of Geomatics and Planning, 5(2), 205- 214. doi: 10.14710/geoplanning.5.2.205-214 1. INTRODUCTION Globally the impacts of land use, land occupation and allocations of land rights are changing. Emerging effects include increasing land scarcity (Gerber, Hartmann, & Hengstermann, 2018), rapid urbanization and growing hazards whereby ever larger numbers of people are at risk. This situation calls on the one hand for information sources which are available instantly and which have better quality, reliability and actuality, and on the other hand for planning processes which rely on more active participation and co-creation of citizens and enhanced informed decision making mechanisms. The rise of big, open, linked and voluntary data is claimed to (partly) address the former, whereas the renewed interests in concept of the ‘right to the city’ (Brenner et al., 2012; Mayer, 2012), the experiments of co-creation of spatial design and spatial governance (Franz, Tausz, & Thiel, 2015; Rooij & Frank, 2016), and the occurrence of neo-cadastres (De Vries, Bennett, & Zevenbergen, 2015) amongst others may address the latter. What are these developments however, and to which extent are they truly changing the landscape and the practice of spatial planning? The main research question of this article is Does the presence of spatial big data-(1) increase the number of citizen-driven land use planning contributions; (2) Improve the quality with which citizens can actively collect and analyse data to pursue their own land use goals; and (3) make citizens smarter. OPEN ACCESS Article Info: Received: 30 June 2018 in revised form: 15 Sept 2018 Accepted: 15 October 2018 Available Online: 25 October 2018 Keywords: Big data, Land use planning, smart cities, land management, participation. Corresponding Author: Walter Timo de Vries Technical University of Munich, Germany Email: wt.de-vries@tum.de https://orcid.org/0000-0002-1942-4714 https://doi.org/10.14710/geoplanning.5.2.205-214 https://doi.org/10.14710/geoplanning.5.2.205-214 mailto:wt.de-vries@tum.de De Vries / Geoplanning: Journal of Geomatics and Planning, Vol 5, No 2, 2018, 205-214 doi: 10.14710/geoplanning.5.2.205-214 206 | This article discusses first qualifications and appraisals of big data, with a particular focus on geospatial or geotagged/georeferenced big data. This discussion also highlights a number of current concerns, i.e. dangers for privacy, unequal access, digital divides, etc. After this review on spatial big data, it discusses the variations in spatial and land use planning. This discussion is necessary to understand where and how big data can play a role in which parts or which phases land use planning. This includes a review of goals, tools and instruments in the different types of spatial planning, including the role of geospatial tools and instruments in spatial (land use) planning. Part of this discourse is a specific focus on smart cities and smart (rural) regions. It is therefore crucial to understand how big data are influencing the ‘smart’ land use planning. This article will focus specifically on the element of ‘smart people’ and a classification of how and where smart people play a role in different actions and phases of land use planning. With this classification different examples in Germany of smart people applications in spatial planning are discussed and reviewed in order to answer the research questions more specifically. The conclusion section then discusses how the research questions can be answered and what sort of further research is required to obtain a better understanding of the role and potential of big data in spatial land use planning. 2. DATA AND METHODS 2.1. Qualification and Appraisals of (Spatial) Big Data Big data have gained a significant place in the discourse of multiple domains. However, in these discourses one can also observe a number of developments and variations in understanding and defining big data. Batty (2013) characterizes big data as ‘any data that cannot fit into an Excel spreadsheet’. However, size is not the only characteristic of big data. Schintler & Chen (2017) and Doornik & Hendry (2014) classify further that big data can be ’fat’ or ‘tall’. Fat data has many attributes ‘M’ but lesser number of observations ‘N’ , while tall data has few attributes but many observations (M