EuroSDR Workshop | Crowdsourcing in National Mapping

16 - 17 January 2020 (Leuven, Belgium)


In the past number of years use of crowdsourcing by National Mapping and Cadastral Agencies (NMCA) has grown from being a disruptive technological idea to a mainstream source of geographic data and information. Today, many NMCAs and companies within the geospatial technologies industry use crowdsourcing to update databases and registries. However, it is often difficult to find information about what projects or initiatives are currently in operation or have been used in the past. Where has crowdsourcing being used? What role did crowdsourcing play in collecting, editing or updating data and information for NMCAs, companies or other institutions?

We welcome submissions from participants who are willing to share their experiences, knowledge, expectations, use-cases, future planning, etc. for VGI and crowdsourced geospatial data and information.

The workshop has two principal aims:

  • Create VGI-ME (the VGI Map of Europe). We will gather information and examples on projects and initiatives in European National Mapping and Cadastral Agencies and geospatial companies/SMEs where crowdsourcing has been successfully implemented. VGI-ME will be a conceptual ‘map’ of projects from around Europe which used crowdsourcing as a means of collecting geospatial data and information.
  • Plan the design and delivery of a VGI Hackathon event in the second half of 2020 which will feature the creation of new crowdsourcing applications (mobile and web) and extending/improving existing ones. For this part of the workshop we actively encourage the participation of developers from NMCAs, universities, research institutions and companies who were/are active in developing crowdsourcing applications. We invite you to present your software, the data produced with it and its use in the organization’s workflow and discuss extensions/new ideas which can be developed as proof of concept in a hackathon with other developers and creative thinkers, in order to make our VGI apps more versatile, more user-friendly, and more effective.

The workshop will engage with stakeholders from NMCAs, the Geomatics Industry, academic research, software developers, citizens involved in geographic crowdsourcing and VGI, leaders or managers of crowdsourcing or VGI projects over 1.5 days to understand the most prominent and pressing questions related to crowdsourcing and national mapping in Europe (and beyond) today and to begin building the inventory of projects for VGI-ME.


We invite participants to submit a short overview report (maximum 1 A4 page) of their experience with crowdsourcing in National Mapping or other related areas of the geospatial domain. The overview should highlight any specific projects or initiatives which they have been involved in, particularly in the European context. Of particular interest are projects where citizens are actively involved in the crowdsourcing activities of projects.

We also welcome short overview reports (maximum 1 A4 page) describing software development approaches to the design, implementation, delivery and maintenance of a web-based inventory system (VGI-ME) to manage information about crowdsourcing projects.

Submissions can be delivered to us before January 6th 2020.

You can register at until January 6th 2020. The cost of registration for this workshop is free.  However, travel, accommodation and other associated subsistence costs will be borne by participants. Pre-registration for the event will be necessary.

: 16 January 2020 (full day) – 17 January 2020 (half day until lunchtime)  

: Leuven Institute for Ireland in Europe, Janseniusstraat 1, 3000 Leuven - +32 16 31 04 30

: Leuven Institute for Ireland in Europe offers bedrooms facilities

: Rob Lemmens, Peter Mooney, and Joep Crompvoets    


Day 1 – Thursday January 16th 2020



08:30 – 09:30

Registration and arrival – The Irish College, Leuven.

09:30 – 10:00

Welcome to the Crowdsourcing in National Mapping 2020 Workshop – Joep Crompvoets and Rob Lemmens. This will include a brief ‘tour de table’ for all delegates to introduce themselves.

10:00 – 10:30

The VGI-ME concept – explaining what we want to do, the hackathon, etc. A presentation on previous hackathons, the Living Textbook, etc
Rob Lemmens

10:30 – 11:00

Coffee Break

Session: Developments and Overviews of Crowdsourcing Approaches  Chair Joep Crompvoets

11:00 – 11:25

Crowdsourcing at the Dutch Cadastre
Magdalena Grus, Kadaster NL.

11:25 – 11:5

Feedback on the collaborative program managed by the French National Mapping Agency
Yolene Jahard 1, Ana-Maria Olteanu-Raimond 2, Marie-Dominique Van Damme 2,
Bénédicte Bucher 2
1. Collaborative program, Direction of Programs, IGN, F-94160 Saint-Mande, France
2. Univ. Paris-Est, LASTIG MEIG, IGN, ENSG, F-94160 Saint-Mande, France

11:50 – 12:15

Academic Research Developments in Crowdsourcing and National Mapping,
Peter Mooney, Dept of Computer Science, Maynooth University, Ireland.

12:15 – 12:40

Crowdsourcing Opportunities at the OS
Ross Muir, Ordnance Survey-GB, Southampton, UK

12:40 – 12:50

Short time for additional questions, comments from delegates.

12:50 – 14:00

LUNCH – At venue in Irish College Leuven.

Session: Crowdsourcing in practice – spotlight on projects.  Chair Peter Mooney

14:00 – 14:25

Slovenian applied research project to utilise volunteered images for the national topographic map updating in scales 1:5000 and 1:50000
Mihaela Triglav Čekada, Geodetic Institute of Slovenia, Ljubljana, Slovenia

14:25 – 14:50

Crowdsourcing gardens in Flanders.
Pieterjan De Geest, KU Leuven, Belgium

14:50 – 15:15

Crowdsourcing projects in the National Land Survey of Finland
Sakeri Savola and Risto Ilves, National Land Survey of Finland, Helsinki, Finland

15:15 – 15:40

The OpenVetMap project
Bonato P., Mazzucato M., Trolese M., Lorenzetto M., Casarotto C., Bassan M., Ferrè N. Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell’Università 10, Legnaro (PD), Italy

15:40 – 15:50

Short time for additional questions, comments from delegates

15:50 – 16:15

Coffee Break

Session: The VGI Map of Europe (VGI-ME)

16:15 – 17:15

Session Leader. Rob Lemmens
What is VGI-ME?
Working with the conceptual model – how to capture metadata about VGI projects.
Hands-on in small working groups.

17:15 – 17:30

Wrap up and finish for Day 1


Dinner at Irish College

Day 2 – Friday January 17th 2020



09:00 - 09:05

Scene Setting Day 2 – Led by Joep, Rob and Peter

09:05 – 09:30

Lightning talks (details to be announced shortly

09:30 – 10:45

VGI-ME Continuation

Requirements for conceptualisation;

Suggest usability improvements;

Suggest other ways to manage VGI-ME.  

10:45 – 11:15

Coffee Break

11:15 – 13:00

Plan the design and delivery of a VGI Hackathon event in the second half of 2020 which will feature the creation of new crowdsourcing applications (mobile and web) and extending/improving existing ones.

13:00 – 13:15

Workshop Close – Wrap up, farewell and next steps (Joep, Rob and Peter)

13:15 – 14:00






Registration form

If you are interested in the VGI Hackathon event, then it would be great if you are able to present your software, the data produced with it and its use in your organization's workflow. If yes, please express what you are able to present in text box 'remarks'.