CadnaA has more than 30 implemented standards and guidelines, powerful calculation algorithms, extensive tools for object handling, outstanding 3D visualization and a very user-friendly interface.

CadnaA is the perfect software to handle national and international noise calculation and noise mapping projects of any size, compliant with the various regulations.

Various dedicated CadnaA modules are available:

• Industrial Noise
• Rustles road and railroad Infrastructures
• Aircraft Noise (Option FLG)
• Air Pollution (Option APL).

A result from the partnership between Datakustik and 01dB-Metravib, CadnaA allows for prediction studies in three domains of application:

• Environmental impact of ground transportation infrastructures
• Acoustic studies of industrial sites
• Airport modelling

Noise from road and railway infrastructures

• Import of GIS (Arcview, MapInfo…) and dxf files
• Management of traffic data (TMJA, train count per period...)
• Modelling of tunnels and bridges, walls and screens
• Ranking of lanes, new infrastructure and/or urban planning projects

Industrial noise

In accordance with ISO 9613, CadnaA allows for:

• Modelling of point/line/area sources
• Building of a database (power levels, absorption…)
• Assessment of ranking and contribution of sources, management of classified sites
• Taking into account of building facades
• Display of rays used for calculation

Aircraft noise

Airports are addressed using different methods, among which ECAC Doc.29 (1997).

• Simulation of air corridors
• Modelling of civil and military airports
• Aircraft and helicopter database

CadnaA allows local authorities and transport infrastructure managers meeting the requirements of current regulations in accordance with European Directive 2002/49/EC of June 25, 2002, which imposes:

• advanced knowledge of the noise situation over a territory and population census based on their exposure
• definition and implementation of catch-up and prevention action plans for quiet areas
• wide public circulation of the information relative to noise exposure

Compatibility with Geographic Information Systems

• Easy processing of available georeferenced data
• Recognition of many GIS formats making information import/export easier
• Selection of the projection system used among several hundred references (Lambert I, II, II extended, III, ...)
• Change of projection systems for harmonised georeferencing
• Management of attributes as a database

Powerful calculations for large-scale territories

CadnaA allows calculating sound levels, assessing statistics on the impact on population and generating interactive maps that can be published on the Internet

• Noisy and quiet areas, building facade noise maps
• Population exposure, definition of action plans
• Simultaneous calculation of indicators (Lden, Ln, Ld, Le)

Optimised mapping publishing

Connections between CadnaA and Google EarthTM provide many possibilities to publish noise maps in order to inform the public.

• Automatic use of background map images from Google EarthTM
• Georeferencing of objects is kept
• Export of projects to Google EarthTM and GIS
• Export of bitmap objects for Internet publishing (WebBitmap)

Main functions

Import

• GIS (Arcview, MapInfo) and dxf data
• Image background : jpeg, bmp, Google EarthTM, ...

Modelling, Query and Operations on objects

• Interactive 3D display
• Cross-section view
• Management of projection systems
• Creation of variants, allowing for the comparison of noise maps (e.g., impact of a noise screen)

Calculations

• Over 30 calculation methods available, among which European methods
• Calculation of 4 acoustic indicators simultaneously (Lden, Ld, Le, Ln, ...)
• Calculation on point receivers
• Horrizontal and vertical noise maps
• Operation on noise maps (e.g., addition of residual noise)
• Area calculation further to project partitioning (PCSP mode)

Presentation/Export of results

• Export of files compatible with GIS (.dxf, .shp, ...)
• Export of projects in .kmz or .kml format
• Publishing of WebBitmap files
• Export of videos
• Dynamic noise map, measurement coupling (DYNMAP)

X

• Mapping. Assessment of noise exposure maps according to European Directive 2002/49/EC, using the “Object scan” function for cross reference, population exposure, conflict maps, etc.

L

• Mapping regardless of the number of objects (up to 16 million objects)

XL

• Management of an unlimited number of objects for large-scale projects, such as city mapping, according to European Directive 2002/49/CE

64bits

• Improved performances for large-scale project management
• Reduced calculation time

CALC

• Simultaneous calculation of projects on several computers connected over a local network
• PCSP calculation, project partitioning

BMP  

• Import of background images under 40 file formats
• Import/Export of projects under Google Earth and management of projection systems

MITHRA

• Implementation of the Mithra calculation method to use NMPB-Routes 96 and NMPB-Fer standards
• Possible import of Mithra files in CadnaA
• Inverse rays shot

SET

• Determination of sound power levels from technical characteristics
• Modelling of complex industrial sources

BPL

• Optimisation of source power from point receivers with known pressure level

FLG

• Calculation of noise related to airport activities, including nearby air corridors