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Commission Directive (EU) 2015/996Dangos y teitl llawn

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 (Text with EEA relevance)

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  1. Introductory Text

  2. Article 1.Annex II to Directive 2002/49/EC is replaced by the text...

  3. Article 2.(1) Member States shall bring into force the laws, regulations...

  4. Article 3.This Directive shall enter into force on the day following...

  5. Article 4.This Directive is addressed to the Member States.

  6. Signature

    1. ANNEX

      1. ASSESSMENT METHODS FOR THE NOISE INDICATORS (Referred to in Article 6 of Directive 2002/49/EC)

        1. 1. INTRODUCTION

        2. 2. COMMON NOISE ASSESSMENT METHODS

          1. 2.1. General provisions — Road traffic, railway and industrial noise

            1. 2.1.1. Indicators, frequency range and band definitions

            2. 2.1.2. Quality framework

              1. Accuracy of input values

              2. Use of default values

              3. Quality of the software used for the calculations

          2. 2.2. Road traffic noise

            1. 2.2.1. Source description

              1. Classification of vehicles

              2. Number and position of equivalent sound sources

              3. Sound power emission

                1. General considerations

                2. Traffic flow

                3. Individual vehicle

            2. 2.2.2. Reference conditions

            3. 2.2.3. Rolling noise

              1. General equation

              2. Correction for studded tyres

              3. Effect of air temperature on rolling noise correction

            4. 2.2.4. Propulsion noise

              1. General equation

              2. Effect of road gradients

            5. 2.2.5. Effect of the acceleration and deceleration of vehicles

            6. 2.2.6. Effect of the type of road surface

              1. General principles

              2. Age effect on road surface noise properties

          3. 2.3. Railway noise

            1. 2.3.1. Source description

              1. Classification of vehicles

                1. Definition of vehicle and train

              2. Classification of tracks and support structure

              3. Number and position of the equivalent sound sources

            2. 2.3.2. Sound power emission

              1. General equations

                1. Individual vehicle

                2. Traffic flow

              2. Rolling noise

              3. Wheel and rail roughness

                1. Definition

              4. Vehicle, track and superstructure transfer function

              5. Impact noise (crossings, switches and junctions)

              6. Squeal

              7. Traction noise

              8. Aerodynamic noise

              9. Source directivity

            3. 2.3.3. Additional effects

              1. Correction for structural radiation (bridges and viaducts)

              2. Correction for other railway-related noise sources

          4. 2.4. Industrial noise

            1. 2.4.1. Source description

              1. Classification of source types (point, line, area)

              2. Number and position of equivalent sound sources

              3. Sound power emission

                1. General

              4. Source directivity

          5. 2.5. Calculation of noise propagation for road, railway, industrial sources.

            1. 2.5.1. Scope and applicability of the method

            2. 2.5.2. Definitions used

            3. 2.5.3. Geometrical considerations

              1. Source segmentation

              2. Propagation paths

              3. Significant heights above the ground

              4. Calculation of the mean plane

              5. Reflections by building façades and other vertical obstacles

            4. 2.5.4. Sound propagation model

            5. 2.5.5. Calculation process

              1. Sound level in favourable conditions (LF) for a path (S,R)...

              2. Sound level in homogeneous conditions (LH) for a path (S,R)...

              3. Statistical approach inside urban areas for a path (S,R)

              4. Long-term sound level for a path (S,R)

              5. Long-term sound level at point R for all paths

              6. Long-term sound level at point R in decibels A (dBA)...

            6. 2.5.6. Calculation of noise propagation for road, railway, industrial sources.

              1. Geometrical divergence

              2. Atmospheric absorption

              3. Ground effect

              4. Acoustic characterisation of ground

              5. Calculations in homogeneous conditions

              6. Calculation in favourable conditions

              7. Diffraction

              8. General principles

              9. Pure diffraction

              10. Calculation of the path difference

              11. Homogeneous conditions

              12. Favourable conditions

              13. Calculation of the attenuation Adif

              14. Calculation of the term Δ ground(S,O)

              15. Calculation of the term Δ ground(O,R)

              16. Vertical edge scenarios

              17. Reflections on vertical obstacles

                1. Attenuation through absorption

                2. Attenuation through retrodiffraction

          6. 2.6. General provisions — Aircraft noise

            1. 2.6.1. Definitions and symbols

              1. Terms

              2. Symbols

              3. Subscripts

            2. 2.6.2. Quality framework

              1. Accuracy of input values

              2. Use of default values

              3. Quality of the software used for the calculations

          7. 2.7. Aircraft noise

            1. 2.7.1. Aim and scope of document

            2. 2.7.2. Outline of the document

            3. 2.7.3. The concept of segmentation

            4. 2.7.4. Flight paths: Tracks and profiles

            5. 2.7.5. Aircraft noise and performance

            6. 2.7.6. Airport and aircraft operations

              1. General airport data

              2. Runway data

              3. Ground track data

              4. Air traffic data

              5. Topographical data

              6. Reference conditions

                1. Reference conditions for NPD data

                2. Reference conditions for aeroplane aerodynamic and engine data

            7. 2.7.7. Description of the flight path

            8. 2.7.8. Relationships between flight path and flight configuration

            9. 2.7.9. Sources of flight path data

              1. Radar data

              2. Procedural steps

            10. 2.7.10. Coordinate systems

              1. The local coordinate system

              2. The ground-track fixed coordinate system

              3. The aircraft coordinate system

              4. Accounting for topography

            11. 2.7.11. Ground Tracks

              1. Backbone tracks

                1. Track dispersion

            12. 2.7.12. Flight profiles

            13. 2.7.13. Construction of flight path segments

              1. Ground track

              2. Flight profile

              3. Segmentation of the takeoff ground roll

                1. Example:

              4. Segmentation of the initial climb segment

                1. Example:

              5. Segmentation of airborne segments

              6. The landing ground roll

            14. 2.7.14. Noise calculation for a single event

            15. 2.7.15. Single event metrics

            16. 2.7.16. Determination of event levels from NPD-data

              1. Impedance adjustment of standard NPD data

            17. 2.7.17. General expressions

              1. Segment event level Lseg

              2. Event noise level L of an aircraft movement

            18. 2.7.18. Flight path segment parameters

              1. Geometric parameters

              2. Segment power P

            19. 2.7.19. Segment Event level correction terms

              1. The duration correction DV (Exposure levels LE only)

              2. Sound propagation geometry

              3. Engine installation correction ΔI

              4. Lateral attenuation Λ(β,ℓ) (infinite flight path)

              5. Finite segment lateral attenuation

              6. The finite segment correction ΔF (Exposure levels LE only)

              7. Specific Treatments of Ground-roll Segments, including the start-of-roll directivity function...

              8. The start-of-roll directivity function Δ SOR

              9. Treatment of receivers located behind each takeoff and landing ground-roll...

            20. 2.7.20. Event noise level L of a general-aviation aircraft movement

            21. 2.7.21. Method for the Calculation of Helicopter Noise

            22. 2.7.22. Noise associated with Engine Testing (Run-Up) Operations, taxiing and auxiliary...

            23. 2.7.23. Calculation of cumulative levels

            24. 2.7.24. Weighted equivalent sound levels

            25. 2.7.25. The weighted number of operations

            26. 2.7.26. Standard grid calculation and refinement

            27. 2.7.27. Use of rotated grids

            28. 2.7.28. Tracing of contours

          8. 2.8. Assigning noise levels and population to buildings

            1. Determination of the number of inhabitants of a building

              1. CASE 1: the data on the number of inhabitants is...

              2. CASE 2: no data on the number of inhabitants is...

            2. Assigning receiver points to the façades of buildings

              1. CASE 1

              2. CASE 2

        3. 3. INPUT DATA

        4. 4. MEASUREMENT METHODS

      2. Appendix A

        Data requirements

        1. Section 2.7.6 of the main text describes in general terms...

        2. Note:

        3. A1 GENERAL AIRPORT DATA

        4. A2 RUNWAY DESCRIPTION

        5. A3 GROUND TRACK DESCRIPTION

        6. A4 AIR TRAFFIC DESCRIPTION

        7. A5 FLIGHT PROCEDURE DATA SHEET

      3. Appendix B

        Flight performance calculations

        1. Terms and symbols

        2. Terms

        3. Symbols

        4. B1 INTRODUCTION

          1. Flight path synthesis

          2. Flight path analysis

        5. B2 ENGINE THRUST

          1. Guidance on operation with reduced takeoff thrust

          2. Reduced Climb Thrust

        6. B3 VERTICAL PROFILES OF AIR TEMPERATURE, PRESSURE, DENSITY AND WINDSPEED

        7. B4 THE EFFECTS OF TURNS

          1. Approximate method

        8. B5 TAKEOFF GROUND ROLL

          1. Note:

        9. B6 CLIMB AT CONSTANT SPEED

        10. B7 POWER CUTBACK (TRANSITION SEGMENT)

          1. Amount of thrust reduction

          2. Constant speed climb segment with cutback

        11. B8 ACCELERATING CLIMB AND FLAP RETRACTION

          1. Note:

          2. Accelerating segment with cutback

        12. B9 ADDITIONAL CLIMB AND ACCELERATION SEGMENTS AFTER FLAP RETRACTION

        13. B10 DESCENT AND DECELERATION

        14. B11 LANDING APPROACH

      4. Appendix C

        Modelling of lateral ground track spreading

        1. It is recommended that, in the absence of radar data,...

        2. Assuming a Gaussian distribution with a standard deviation S, illustrated...

        3. Figure C-1 Subdivision of a ground track into 7 subtracks...

        4. A Gaussian distribution can normally be modelled adequately using 7...

        5. However, the adequacy of the approximation depends on the relationship...

      5. Appendix D

        Recalculation of NPD-data for non-reference conditions

        1. The noise level contributions from each segment of the flight...

        2. Figure D-1 Meteorological conditions recorded during noise certification tests

        3. The curves overlaid on Figure D-1, calculated using an industry...

        4. Because the attenuation rates, given in Table D-1, are arithmetic...

        5. The attenuation coefficients in Table D-1 may be assumed valid...

        6. The ANP database provides the following NPD data for each...

        7. maximum sound level versus slant distance, Lmax(d) time integrated level...

        8. all data being normalised to the AIR-1845 atmosphere.

        9. Adjustment of the NPD curves to user-specified conditions T and...

        10. First the reference spectrum is corrected to remove the SAE...

        11. The increment ΔL is the difference between the NPDs in...

        12. Applying ΔL to adjust both Lmax and LE NPDs effectively...

      6. Appendix E

        The finite segment correction

        1. This appendix outlines the derivation of the finite segment correction...

        2. E1 GEOMETRY

        3. E2 ESTIMATION OF THE ENERGY FRACTION

        4. E3 CONSISTENCY OF MAXIMUM AND TIME INTEGRATED METRICS — THE SCALED...

      7. Appendix F

        Database for road traffic source

        1. This appendix presents the database for most of the existing...

      8. Appendix G

        Database for railway source

        1. This appendix presents the database for most of the existing...

      9. Appendix H

        Database for industrial source

        1. This appendix presents a few examples for input values for...

      10. Appendix I

        Database for aircraft source — NPD data

        1. This appendix presents the database for most of the existing...

        2. This section introduces complementary data for general aviation aircraft.

        3. GASEPF and GASEPV data

        4. Aircraft classes data

        5. Aircraft Noise and Performance data for the four classes are...

        6. Helicopter Noise and Performance Data Set 1

        7. Helicopter Noise and Performance Data Set 2

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