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Mobile data measurement

A yellow sensor mounted on the roof of a city police vehicle.

Sparrow Node - Hyperlocal data collection on air quality, noise pollution and road conditions in Wiesbaden

The "Sparrow Nodes" are innovative, mobile and multifunctional sensors that are mounted on urban vehicles. Over a period of one year (January 2025 to February 2026), they will measure various parameters throughout the city. During their daily journeys, these sensors record a wide range of relevant environmental and infrastructure data, including air quality, noise pollution and road conditions. In conjunction with the existing stationary measuring stations, they enable fine-grained and comprehensive data collection, i.e. measurements in places where none could previously be taken.

The aim of the temporary data experiment is to test the added value of mobile sensor technology compared to stationary measurements. The findings of the data analysis will ultimately be evaluated together with experts from the Wiesbaden Environmental Agency and the Hessian State Agency for Nature Conservation, Environment and Geology (HLNUG).

The advantages:

  • Detailed, small-scale data enables a differentiated analysis of the environmental pollution situation in the entire urban area
  • Early detection of road damage
  • More informed decision-making basis for administration and politics
  • More efficient air pollution control and noise protection measures
  • Strengthening smart urban development through innovative sensor technology

Who benefits from it?

  • Citizens who benefit from better air quality and less noise
  • City administration departments that require detailed environmental data for their planning and measures
  • Decision-makers in politics and urban development for the well-founded implementation of environmental and mobility strategies

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