Noise Mapping and Noise Quota Application to an Industrial Park

NOISE MAPPING AND NOISE QUOTA APPLICATION TO AN INDUSTRIAL PARK

Luís Conde SantosGrupo AbsorsorTaguspark - Edifício Tecnologia I, 112780-920, Oeiras, Portugalwww.absorsor.pt

INTRODUCTION – the problem

Industrial parks often promoted by local authorities, – to bring new industrial investments – to relocate factories installed in urban areas

However, – sensitive receivers can already exist or be

planned to the surroundings limits to the noise levels which can be

emitted by the industries

INTRODUCTION – the problem

If careful noise planning is not implemented… – noise limits may be reached far before all areas

of the park are built up, • making it difficult for new industries to fit in the

reduced noise margin available This can severely bring down the market

value of the unbuilt areas – and threaten the success of the industrial park !

INTRODUCTION – the solution

With a noise mapping tool…– simulate the installation of the industries in the

available areas in the park – establish a Noise Quota for each area, in a fair

and optimized manner Noise quota

– can be specified as sound power levels per m2, – or in terms of partial noise level limits, at given

receivers, from each noise emitting area in the industrial park

INTRODUCTION – this paper

This paper describes the practical application of this technique, to an industrial park in

Palmela, to the south of Lisbon

PALMELA very attractive area for

investment in all kinds of fields: industrial, commercial, touristic developments and residential building

still low population density (around 53.000 inhabitants on 460 Km2 )

fast growing population (more than 20% rate) and some pressure on land use

PALMELA

The Municipality of Palmela – is quite aware of the need for land use planning,– taking into account the various environmental aspects,

including noise, its land use planning,

– at the various scales• district level, • urbanization level and • detail level

– is now being made with the support of noise modelling techniques.

CASE STUDY: INDUSTRIAL PARK IN PALMELA Case of an industrial park, developed by the

Municipality:– 42 lots, from which only 8 were already built up – in the surroundings:

• 2 motorways (A2 and A12), • 2 municipal roads and local roads of the park, • some sparse houses and an area classified for future residential

constructions

– noise limits in the neighbouring houses and future residential areas are still below noise limits according to regulations

INDUSTRIAL PARK IN PALMELA

Objective of the Municipality:– to guarantee that noise limits will not be exceeded after

the industrial park is fully occupied with running industries.

Portuguese environmental noise regulations impose two types of limits:– Maximum exposure criterion:

• Day/night: 55/45 dB(A) if sensitive; 65/55 if mixed– Annoyance criterion:

• Day/night: particular noise should not increase background noise by more than 5/3 dB(A)

INDUSTRIAL PARK IN PALMELA

Development of an industrial park normally occurs step by step: – the first industry is installed and starts running, – than another one starts, and so on,

And typically, – the annoyance criteria may not be exceeded, each

industry adding just a few dB’s to the existing noise– but very often the maximum exposure limits are

reached before the park is full…

Computer model,Showing:•Calculation area•Industrial park•Motorways

PROPOSED APPROACH

PROPOSED APPROACH

Analyse and build a model for the present situation, including:– Exhisting industries, – Exhisting motorways and roads– Validate by measurements close to the sources and

close to sensitive receivers Establish control points around the industrial area:

– at the limit beyond which land use planning enables for future residential areas

PROPOSED APPROACH

Create optimizable area sources– One for each industrial lot

• Placing on each lot an industrial type building, some 10 m high, and with the maximum allowed area

Introduce traffic on motorways and roads according to counts and estimates

Impose in the model the noise limits (65 day, 55 night) at the control points

Run the optimization, in order to give each lot its maximum sound power level per square meter.

PROPOSED APPROACH

For each control point:– List individual source contributions– Rearrange tables to establish maximum noise

levels that can be produced at each control point by each particular industrial lot

• These will work as “legal limits” for the new industries to be installed

ROAD TRAFFIC SOURCES

EXHISTING INDUSTRIAL SOURCES

MEASUREMENT POINTS FOR VALIDATION AT PRESENT SITUATION

CONTROL POINTS FOR OPTIMIZATION (FUTURE SITUATION)

EXAMPLE OF CONTROL POINT

ASASD

OPTIMIZABLE AREA SOURCES

Optimizable area sources at each lot (1.5 m above ground)

Control points close to exhisting houses and around limit for future residential areas

Automatic source optimization to have maximum sound power but constrained by the noise limits at the control points

SOURCE OPTIMIZATION

Noise limits specified for each lot at each control point - example

Nome Nome Nome Nome Nome Lote Lote Lote Lote Lote

Diurno Nocturno Diurno Nocturno Diurno Nocturno Diurno Nocturno Diurno Nocturno(dBA) (dBA) (dBA) (dBA) (dBA) (dBA) (dBA) (dBA) (dBA) (dBA)

Nível Total - > 65 54.5 Nível Total - > 64.9 53.8 Nível Total - > 56.9 46.8 Nível Total - > 59.8 49.1 Nível Total - > 65 54.8Lote 25 55.4 44.4 Lote20 62 51.7 Lote 29 48.4 39.6 Lote 25 55.1 44.1 Lote20 59.5 49.2Lote 24 54.6 40.7 Lote 34 54.9 38.9 Lote 12 47.7 39.4 Lote 41 42 52.7 43 Lote 19 56.2 46.3

Lote 41 42 54.6 44.9 Lote 33 53.4 35.9 Lote 13 46.1 38.8 Lote 24 52.2 38.3 Lote 18 55.9 45.3Lote 39 40 54.5 43.1 Lote 35 51.9 34.7 Lote 17 45.5 34.3 Lote 35 45.6 28.4 Lote 16 53.9 42.7

Lote 38 51.9 41.1 Lote 23 50.1 38.4 Lote 28 45.3 35.6 Lote20 44.5 34.2 Lote 29 53 44.2Lote20 46.5 36.2 Lote 29 49.6 40.8 Lote 16 42.8 31.6 Lote 23 43.7 32 Lote 15 52.8 41.6Lote 34 46.3 30.3 Lote 17 49.2 38 Lote20 42.7 32.4 Lote 39 40 41.6 30.2 Lote 17 51.7 40.5Lote 23 45.5 33.8 Lote 25 47.9 36.9 Lote 33 41.6 24.1 Lote 38 41.5 30.7 Lote 13 49.9 42.6Lote 17 44 32.8 Lote 22 46.9 35.9 Lote 09 40.5 27.8 Lote 17 40.5 29.3 Lote 12 49.2 40.9Lote 35 43.1 25.9 Lote 16 46.8 35.6 Lote 01 40.1 26.5 Lote 36 37.6 26.6 Lote 28 48.8 39.1Lote 33 41.4 23.9 Lote 13 46.3 39 Lote 25 39.7 28.7 Lote 22 37.5 26.5 Lote 32 B 48.2 34.4Lote 16 40.8 29.6 Lote 32 B 46.2 32.4 Lote 11 39.4 31.3 Lote 32 B 37.5 23.7 Lote 33 47.9 30.4Lote 22 40.1 29.1 Lote 28 45.4 35.7 Lote 24 39.3 25.4 Lote 34 37.5 21.5 Lote 35 45.7 28.5

Lote 32 B 39.4 25.6 Lote 12 45.3 37 Lote 35 39.2 22 Lote 33 35.1 17.6 Lote 25 45.6 34.6Lote 13 38.8 31.5 Lote 24 44 30.1 Lote 34 38.6 22.6 Lote 29 34.8 26 Lote 34 44.5 28.5Lote 12 38.3 30 Lote 19 43 33.1 Lote 04 38.2 27 Lote 16 34.5 23.3 Lote 23 42.2 30.5Lote 28 38.2 28.5 Lote 15 42.3 31.1 Lote 32 B 37.6 23.8 Lote 11 32.9 24.8 Lote 24 41.4 27.5Lote 29 37.9 29.1 Lote 18 39.9 29.3 Lote 07 37.5 25.9 Lote 13 32.9 25.6 Lote 04 40.9 29.7Lote 11 34.4 26.3 Lote 09 38.1 25.4 Lote 15 37.3 26.1 Lote 12 29.9 21.6 Lote 09 40.2 27.5Lote 15 33.6 22.4 Lote 36 38.1 27.1 Lote 08 37.1 25.5 Lote 28 29.3 19.6 Lote 07 40.1 28.5Lote 36 33.2 22.2 Lote 11 37.9 29.8 Lote 18 35.2 24.6 Lote 04 28.9 17.7 Lote 08 39 27.4Lote 18 32.6 22 Lote 07 36.9 25.3 Lote 23 34.7 23 Lote 15 28.3 17.1 Lote 22 38.9 27.9Lote 19 32.4 22.5 Lote 04 36.2 25 Lote 27 34.4 22.1 Lote 01 27.3 13.7 Lote 11 38.7 30.6Lote 07 32 20.4 Lote 08 35.6 24 Lote 06 33.9 21.3 Lote 19 26.5 16.6 Lote 05 35.9 26.7Lote 09 30.8 18.1 Lote 01 33.3 19.7 Lote 19 32.5 22.6 Lote 18 25.6 15 Lote 01 35.8 22.2Lote 04 30.7 19.5 Lote 39 40 31.9 20.5 Lote 03 31.9 21.3 Lote 09 25.4 12.7 Lote 06 34.4 21.8Lote 01 29.1 15.5 Lote 38 31.7 20.9 Lote 02 31.3 21.3 Lote 07 24.5 12.9 Lote 27 33.3 21Lote 08 29.1 17.5 Lote 06 31.3 18.7 Lote 05 29.5 20.3 Lote 06 21.3 8.7 Lote 03 32.1 21.5Lote 06 27.4 14.8 Lote 27 30.9 18.6 Lote 22 29.3 18.3 Lote 05 20.3 11.1 Lote 36 30.7 19.7Lote 27 23.6 11.3 Lote 05 30.3 21.1 Lote 36 29.1 18.1 Lote 03 20.1 9.5 Lote 39 40 30.7 19.3Lote 05 23.4 14.2 Lote 03 28.5 17.9 Lote 39 40 28.8 17.4 Lote 08 19.5 7.9 Lote 02 29.1 19.1Lote 03 23.1 12.5 Lote 41 42 26.4 16.7 Lote 38 28.3 17.5 Lote 27 18.9 6.6 Lote 38 28.7 17.9Lote 02 21.6 11.6 Lote 02 26.1 16.1 Lote 41 42 23.3 13.6 Lote 02 18.5 8.5 Lote 41 42 25.9 16.2

Ruído Particular noRecOpt016

Ruído Particular noRecOpt017

Ruído Particular noRecOpt018

EXAMPLE FILES

Source optimization

Total map for day

Total map for night

Recp.Só Com Fontes Opt FuturoTestes.cna

Para 3D dia.cna

Para 3D noite .cna

CONCLUSIONS

Noise Mapping for industrial sites, by computer modelling, is a powerful tool.

Example: industrial park being developed , surrounded by residential areas– Shows how effective and straightforward this

technique can be, • by specifying noise quota for each industry which

intends to install its operations in the park,

CONCLUSIONS

– By clearly setting these limits: • the municipality can easily plan and control the

development of the industrial park, and make it more attractive for investors

• and can be assured that its planned residential areas close to the park can proceed its development, without being put at risk by conflicts with national noise regulations

• people already living in the vicinity of the park, can be assured that, in spite of a certain build up of noise which will occur, it will not get out of control and will be kept within the legal limits.

REFERENCES

1. W. Probst and B. Huber – Noise Quota for Industrial Sites – an Application of Noise Mapping Projects. In Proceedings of InterNoise 2000, Nice, France.

2. W. Probst – Modelling of Industrial Plants in the Framework of Sound Immission Plans. In Proceedings of ICSV, Hong Kong, 2001.