Package org.noise_planet.noisemodelling.emission.railway.cnossos

Class RailwayCnossos

java.lang.Object

org.noise_planet.noisemodelling.emission.railway.Railway

org.noise_planet.noisemodelling.emission.railway.cnossos.RailwayCnossos

public class RailwayCnossos
extends Railway

Railway noise evaluation from Cnossos reference : COMMISSION DIRECTIVE (EU) 2015/996 of 19 May 2015 establishing common noise assessment methods according to Directive 2002/49/EC of the European Parliament and of the Council amending, for the purposes of adapting to scientific and technical progress, Annex II to Directive 2002/49/EC of the European Parliament and of the Council as regards common noise assessment methods part 2.3. Railway noise Return the dB value corresponding to the parameters

Author:

Adrien Le Bellec, Université Gustave Eiffel, Olivier Chiello, Université Gustave Eiffel

Constructor Summary

Constructors

Constructor	Description
RailwayCnossos()

Method Summary

Modifier and Type	Method	Description
RailWayCnossosParameters	evaluate(RailwayVehicleCnossosParameters vehicleParameters, RailwayTrackCnossosParameters trackParameters)	Evaluate the sound level for one Vehicle
double	getAerodynamicNoise(String typeVehicle, String sourceHeightId, String fileVersion, int freqId)	retrieve the aerodynamic noise value for a specific type of vehicle, source height, file version, and frequency ID by accessing the corresponding data from the vehicle node, railway data, and noise values.
double	getAxlesPerVeh(String typeVehicle)	Axles number by vehicles
Double	getBridgeStructural(int bridgeId, int freqId)	retrieves the structural constant for a specific bridge and frequency ID by accessing the corresponding data from the railway track's bridge constants.
Double	getContactFilter(String typeVehicle, int lambdaId)	get Contact Filter by wavenumber - Only CNOSSOS
Double	getImpactNoise(int impactNoiseId, int freqId)	fetches and returns the impact noise value from the railway data for a specific impact noise ID and frequency ID.
Double	getLRoughness(String typeVehicle, int trackRoughnessId, String vehicleFileVersion, int idLambda)	calculates the total roughness level for a specific type of vehicle, track roughness, vehicle file version, and lambda ID by retrieving the wheel roughness and track roughness
int	getNbCoach(String typeVehicle)	get Nb of coach by vehicle
Double	getTrackRoughness(int trackRoughnessId, int lambdaId)	get Track Roughness Filter by wavenumber - Only CNOSSOS
Double	getTrackTransfer(int trackTransferId, int freqId)	fetches and returns the transfer value from the railway data for a specific track transfer ID and frequency ID.
double	getTractionNoise(String typeVehicle, int runningCondition, String sourceHeightId, String fileVersion, int freqId)
Double	getVehTransfer(String typeVehicle, int freqId)	retrieve and return the transfer value associated with a given vehicle type and a specific frequency ID.
Double	getWheelRoughness(String typeVehicle, String fileVersion, int lambdaId)	get Wheel Roughness by wavenumber - Only CNOSSOS
static <T> Iterable<T>	iteratorToIterable(Iterator<T> iterator)

Methods inherited from class org.noise_planet.noisemodelling.emission.railway.Railway

evaluate, getRailWayData, getTrainsetData, getVehicleData, getVehicleFromTrainset, getVehicleNode, isInVehicleList, setRailwayDataFile, setTrainSetDataFile, setVehicleDataFile

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RailwayCnossos

public RailwayCnossos()

Method Detail

iteratorToIterable

public static <T> Iterable<T> iteratorToIterable(Iterator<T> iterator)

Type Parameters:

T -

Parameters:

iterator -

Returns:

an iterator

getWheelRoughness

public Double getWheelRoughness(String typeVehicle,
                                String fileVersion,
                                int lambdaId)

get Wheel Roughness by wavenumber - Only CNOSSOS

Parameters:

typeVehicle -

fileVersion -

lambdaId -

Returns:

getContactFilter

public Double getContactFilter(String typeVehicle,
                               int lambdaId)

get Contact Filter by wavenumber - Only CNOSSOS

Parameters:

typeVehicle - type of a vehicle, for example : SNCF2

lambdaId - wavenumber (between 1 and 34 corresponding the normalised third octave bands from 2000mm to 0.8mm).

Returns:

contact filter

getTrackRoughness

public Double getTrackRoughness(int trackRoughnessId,
                                int lambdaId)

get Track Roughness Filter by wavenumber - Only CNOSSOS

Parameters:

trackRoughnessId -

lambdaId -

Returns:

getAxlesPerVeh

public double getAxlesPerVeh(String typeVehicle)

Axles number by vehicles

Parameters:

typeVehicle -

Returns:

getNbCoach

public int getNbCoach(String typeVehicle)

get Nb of coach by vehicle

Parameters:

typeVehicle -

Returns:

getTractionNoise

public double getTractionNoise(String typeVehicle,
                               int runningCondition,
                               String sourceHeightId,
                               String fileVersion,
                               int freqId)

Parameters:

typeVehicle -

runningCondition -

sourceHeightId -

fileVersion -

freqId -

Returns:

getAerodynamicNoise

public double getAerodynamicNoise(String typeVehicle,
                                  String sourceHeightId,
                                  String fileVersion,
                                  int freqId)

retrieve the aerodynamic noise value for a specific type of vehicle, source height, file version, and frequency ID by accessing the corresponding data from the vehicle node, railway data, and noise values.

Parameters:

typeVehicle -

sourceHeightId -

fileVersion -

freqId -

Returns:

getBridgeStructural

public Double getBridgeStructural(int bridgeId,
                                  int freqId)

retrieves the structural constant for a specific bridge and frequency ID by accessing the corresponding data from the railway track's bridge constants.

Parameters:

bridgeId -

freqId -

Returns:

getTrackTransfer

public Double getTrackTransfer(int trackTransferId,
                               int freqId)

fetches and returns the transfer value from the railway data for a specific track transfer ID and frequency ID.

Parameters:

trackTransferId -

freqId -

Returns:

getImpactNoise

public Double getImpactNoise(int impactNoiseId,
                             int freqId)

fetches and returns the impact noise value from the railway data for a specific impact noise ID and frequency ID.

Parameters:

impactNoiseId -

freqId -

Returns:

getVehTransfer

public Double getVehTransfer(String typeVehicle,
                             int freqId)

retrieve and return the transfer value associated with a given vehicle type and a specific frequency ID.

Parameters:

typeVehicle -

freqId -

Returns:

getLRoughness

public Double getLRoughness(String typeVehicle,
                            int trackRoughnessId,
                            String vehicleFileVersion,
                            int idLambda)

calculates the total roughness level for a specific type of vehicle, track roughness, vehicle file version, and lambda ID by retrieving the wheel roughness and track roughness

Parameters:

typeVehicle -

trackRoughnessId -

vehicleFileVersion -

idLambda -

Returns:

evaluate

public RailWayCnossosParameters evaluate(RailwayVehicleCnossosParameters vehicleParameters,
                                         RailwayTrackCnossosParameters trackParameters)
                                  throws IOException

Evaluate the sound level for one Vehicle

Parameters:

vehicleParameters - Vehicle Noise emission parameters

trackParameters - Track Noise emission parameters constant speed

Returns:

LWRoll / LWTraction A and B / LWAerodynamic A and B / LWBridge level in dB

Throws:

IOException