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Chapter 7 - Modeling Roads

For the modeling of the sound propagation of roads and of other source types (like traffic lights/crossings and parking lots) the following objects are available in the CadnaA-toolbox:

Road, traffic lights/crossing and parking lot on the CadnaA-toolbox

The handling of the objects "crossing" and "parking lot" depends on the regulations of the selected road noise standard.

In the following chapter the European calculation procedure CNOSSOS-EU is used as the calculation method for roads. Check for this setting on tab „Standards“ on dialog Configuration.

In this chapter the following topics are dealt with:

  • entering road geometry,
  • specifying road emission,
  • road with a parallel barrier,
  • elevated roads and bridges (also with barriers),
  • barrier optimization alongside of a road,
  • level vs. time diagram for vehicle pass-bys.