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Principle

You can choose an existing noise indicator or specify new characteristics from an existing indicator.

An indicator covers the simulation periods corresponding to the map.

Each time an indicator is changed, fields are automatically updated.

Each period can be activated/disabled and its weighting (Weig.) altered (from 0 to 30).

Formula applied to determine the acoustic level (unit: dB or dB(A))

where :

i is a period of time (day, evening, etc.).

Leqi the equivalent (eq) sound level over the period i.

Ti is the number of hours in the period i.

Ci is the weighting coefficient for a period i.

Predefined indicator

•Indicator present for a simulation with periods: "All Day"

LAeq

•Indicator present for a simulation with periods: 'Day / Night'

LAeq, LAeq 6-22h , LAeq 22h-6h

•Indicator present for a simulation with periods: 'Day / Evening / Night'

LAeq, LAeq 6-22h , LAeq 22h-6h , LAeq Day , LAeq Evening , LAeq Night , LDEN , LN.

•Indicator present for a simulation with periods: 'Hour / hour'

LAeq, LAeq 6-22h , LAeq 22h-6h , LAeq Day , LAeq Evening , LAeq Night , Lden , Ln, LAeq 0-1h , LAeq 1-2h, LAeq 2-3h , ... , LAeq 23-0h

Dynamic indicators

A simulation with a storage mode of the LAmax type allows access to dynamic indicators:

•Indicator present for a simulation with periods: "All Day"

LAmax

•Indicator present for a simulation with periods: "Day / Night"

LAmax , LAmax 6-22h , LAmax 22h-6h

•Indicator present for a simulation with periods: 'Day / Evening / Night'

LAmax , LAmax 6-22h , LAmax 22h-6h , LAmax Day , LAmax Evening , LAmax Night

•Indicator present for a simulation with periods: 'Hour / hour'

LAmax , LAmax 6-22h , LAmax 22h-6h , LAmax Day , LAmax Evening , LAmax Night , LAmax 0-1h , LAmax 1-2h , LAmax 2-3h , ... , LAmax 23-0h