Package org.noise_planet.noisemodelling.emission.railway.schall03

Class TramwaySchall03

java.lang.Object

org.noise_planet.noisemodelling.emission.railway.schall03.TramwaySchall03

public class TramwaySchall03
extends Object

Compute sound emission levels of tramway sound source The proposed model is a very simplified version, inspired by : Moehler, U.; Liepert, M.; Kurze, U.J.; Onnich, H. The new German prediction model for railway noise 'Schall 03 2006'. In Noise and Vibration Mitigation for Rail Transportation Systems; Springer: Berlin, Germany, 2008; pp. 186–192.

Author:

Nicolas Fortin, Université Gustave Eiffel

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	TramwaySchall03.GROUND_TYPE

Field Summary

Fields

Modifier and Type	Field	Description
static final double	grass_a_factor
static final double	grass_b_factor
static final double	rigid_a_factor
static final double	rigid_b_factor
static final double	speed_reference

Method Summary

Modifier and Type	Method	Description
static double	evaluate(double speed, double tw_per_hour, TramwaySchall03.GROUND_TYPE ground_type, boolean has_anti_vibration)	Evaluation of Tramway sound source

Methods inherited from class java.lang.Object

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

Field Details

grass_a_factor

public static final double grass_a_factor

See Also:

• Constant Field Values

rigid_a_factor

public static final double rigid_a_factor

See Also:

• Constant Field Values

grass_b_factor

public static final double grass_b_factor

See Also:

• Constant Field Values

rigid_b_factor

public static final double rigid_b_factor

See Also:

• Constant Field Values

speed_reference

public static final double speed_reference

See Also:

• Constant Field Values

Method Details

evaluate

public static double evaluate(double speed,
 double tw_per_hour,
 TramwaySchall03.GROUND_TYPE ground_type,
 boolean has_anti_vibration)

Evaluation of Tramway sound source

Parameters:

speed - Average tramway speed

tw_per_hour - Average tramway count per hour

ground_type - Ground category

has_anti_vibration - True if rails lies on anti-vibration system

Returns:

Value in dB(A)