Blockchain increases confidence in subsidence data for Gouda

Published: 20 June 2018

Reliable data is vital to make the right policy decisions and to make land subsidence manageable for Gouda. Deltares, in collaboration with Xurux and Wareco, is creating a blockchain for the data from the Land Subsidence Living Lab. 'That helps people not to get bogged down in discussions about the origin of data', explains Bob Hoogendoorn, a geologist at Deltares. 'The blockchain technology ensures that data origin and processing are transparent. It increases confidence in the data for all stakeholders.'

Land subsidence in this city results in high costs every year due to damage and flooding. Land subsidence is complex: it is a challenge both technically and administratively to unravel the mechanisms properly, to understand them and to use them to develop measures and policies. The use of blockchain allows all the parties involved – the local government, the water authority, the residents and companies – to get the same information. It shows which groundwater levels have been measured and how they have been processed. Examples are the conversion of the water pressure above the sensor in the monitoring well but also the processing of satellite data in the future. This processing is logged by all participants in the blockchain, making the data and the process transparent.

Mock up blockchain viewer for land subsidence Gouda

The blockchain for land subsidence in Gouda is a pilot project and it fits in with the ‘living lab’ philosophy of Gouda, which brings together knowledge and experience that go beyond innovative technical solutions. The following organisations are involved in the pilot project: Gouda City Authority, Hoogheemraadschap Rijnland water authority, het Watergilde historical society, the provincial authority of Zuid-Holland, Wareco and Xurux. The pilot will continue through to late September.