Section: Application Domains


There is a growing interest for environmental problems at city scale, where a large part of the population is concentrated and where major pollutions can develop. Numerical simulation is well established to study the urban environment, e.g., for road traffic modeling. As part of the smartcity movement, an increasing number of sensors collect measurements, at traditional fixed observation stations, but also on mobile devices, like smartphones. A number of research issues can be raised:

  • How to properly take into account the city geometry that makes the data assimilation problems unique?

  • How to make use of the various sensors, sometimes mobile, of low quality but numerous?

  • How to couple all the systems that are intricated at urban scale?

Pratical applications include air pollution and noise pollution. These directly relate to road traffic. Data assimilation and uncertainty propagation are key topics in these applications.