PRAGUE WEB

MAGISTRÁT HLAVNÍHO MĚSTA PRAHY
PRAGUE CITY HALL

Ročenka – zpráva o stavu životního prostředí
Yearbook – report on state of the environment

 
 
 

B5.2  ROAD TRAFFIC NOISE

The most important source of excessive noise affecting the largest portion of the City population is automotive traffic. The number of automobiles and transported volumes have been ever increasing. Although the construction of outer ring roads and radial roads has been ongoing, roads in the densely populated built-up areas in the City downtown remain in the state of traffic saturation, that is jammed, for all day. Road pavement condition in many cases contributes to a noise level increase. Noise control barriers could have been implemented along a small proportion of the road network only. In the roads of Prague with the most intensive traffic the equivalent levels of acoustic pressure reach almost 80 dB in daytime, as, for instance, in Veletržní, Legerova, and Sokolská Streets, and so on.

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B5.2.1  Noise measurements

Regular noise measurements at eight selected localities of Prague had been carried out within the system of the IOŽIP till 2000. Repeated noise measurements have been carried out on a long-term basis by the Public Health Authorities, namely within the framework of the National Programme of the National Institute for Public Health called “Monitoring of the Environment Related to Public Health” (see chapter C3). Results of long-term measurements confirm that at localities of stable traffic solution and more or less filled traffic capacity noise conditions do not change much either. Due to all-day traffic load the effects of rush hours are levelled. At noisier localities the acceptable values of LAeq are permanently exceeded all day and night.

Occasional noise measurements and time-limited measurements of noise are carried out mostly as a part of environmental studies of larger investment projects when noise abatement measures are also proposed. Further one-time measurements are performed as checks in the course of investigation of complaints or in order to perform calibration of results of model calculations.

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B5.2.2  Noise maps

Noise maps have become an important tool to describe urban noise nuisance as the first step of the conceptual solution of the adverse conditions in the world as well as in the Czech Republic. While formerly maps were developed only on the basis of field measurements, nowadays the clearly prevailing type is a noise map developed on the basis of model calculations. Advantage of model noise calculations is lower costs compared to measurements, which cannot be virtually performed for a detailed assessment on a larger area. Calculated maps are used primarily for assessment of expected effects when planning investments, changes in traffic, or other environment- improving measures. For these purposes updated calculations for certain localities or for the whole City area are the good onset and are of frequent use.

The City of Prague has long-term experience in the field of the noise map development. First noise maps of automotive traffic were developed on the basis of measurements in Prague in 1976. In the 1990s they were developed on the basis of combined methodology of measurements and calculations. After 1998 works started on the series of calculated noise maps of automotive traffic, and then also on tramway traffic and maps distinguishing in between daytime and night-time conditions. The basis of calculations was data on traffic intensity on the selected network of roads, data on the road surface, speed limits, and developed areas and greenery along the roads, etc. The following works also included the assessment of noise nuisance to population, for which demographic data was employed.

Calculated noise maps of automotive traffic in Prague in 2007 are based on traffic data of the year 2005 and are the expanded update of maps of 2000, which they follow in methodology. Maps were developed on the basis of requirements of the Czech Republic legislation. LAeq for daytime (06–22 o’clock) and LAeq for night-time (22–06 o’clock).

In 2007, the Strategic Noise Map of the Prague Agglomeration was developed in accordance with requirements of the European directive (2002/49/EC) and in the next year the Action Plan for Noise Reduction in the Prague Agglomeration was worked out.

In 2008 calculations were carried out according to Czech legislation, within the framework of the Project ENVIS4 (http://envis4.praha.eu), also on detailed areas, that means a detailed road network and in detailed of noise nuisance of respective whole facades of buildings.

Fig. B5.2.1  An example of a noise map of the Project ENVIS4

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Source: MHMP, EKOLA group

B5.2.2.1 Strategic Noise Map of the Prague Agglomeration and the following Action Plan

Strategic Noise Map of the Prague Agglomeration

The Strategic Noise Map of the Prague Agglomeration of was developed in 2007. Impulse for its development was the Directive 2002/49/EC of the European Parliament and the Council of 25 June 2002 relating to the assessment and management of environmental noise and its transposition into the Czech Republic legislation, respectively.

Results of the Strategic Noise Map developed in 2007 for the City of Prague and its close surroundings (the Prague agglomeration) confirmed that the most important source of noise in Prague is road traffic. Noise from railway traffic and from air traffic operation is important solely locally, on the locality of their sources. The least important is noise from integrated industrial facilities.

The share of population affects by daytime noise L(day) above 55 dB is 87%. The share of population affects by night-time noise L(night) above 45 dB is 85%.

Fig. B5.2.2  An example of the Strategic Noise Map of the Prague Agglomeration

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Source: MZd, Akustika Praha

Action Plan for Noise Reduction in the Prague Agglomeration

The Action Plan was developed on the basis of the Strategic Noise Map. The Prague City Hall, as a regional authority, was obliged to work out a proposal of the Action Plan for Noise Reduction in the whole agglomeration and to ensure its gradual implementation by 2013.

In accordance with requirements of the Directive 2002/49/EC the Prague City Hall provided for information dissemination to and active participation of the general public by means of commentary proceedings. For 50 critical localities, where night-time limit value of the noise indicator is exceeded, measures were proposed to improve local conditions.

The final version of the Action Plan for Noise Reduction in the Prague Agglomeration was created in the course of 2009 by incorporating comments and additions and then it was discussed at the Council of the Capital City of Prague on 15 September 2009.

Further information can be found at http://envis.praha-mesto.cz/hluk.

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B5.2.3  Noise control measures

Noise control measures are solved in several mutually mingling horizons within the City of Prague. The Department of Property Administration of the Prague City Hall provides for coordination of the noise control measures’ implementation. Recommendations of the Action Plan gave birth to a number of tasks, which implementation was delegated to respective departments of the Prague City Hall and to organisations, which activities affect noise conditions in the Capital City – Public Transport of the City of Prague Co. and Technical Administration of Roads of the City of Prague.

Tab. B5.2.1 Noise control barriers proposed in the Action Plan

Ulice
Street

Číslo clony
Barrier No.

Výška / Height
[m]

Délka / Length
[m]

Katastrální území
Cadastral District

Průmyslová

201

3

532
466

Hloubětín

Jižní spojka / South Connection

202

4

412
427

Strašnice, Záběhlice

Jižní spojka / South Connection

203

4

165
136

Záběhlice

K Barrandovu

204

5

854

Barrandov

Barrandovský most
Barrandovský Bridge

205

2

413

Braník, Hlubočepy

Nájezd na Barrandovský most
Slip road to Barrandovský Bridge

206

3

140

Braník, Hlubočepy

Černokostelecká

207

4

278

Strašnice

Kolbenova

208

3

763

Hloubětín

Spořilovská

209

4

845
976

Záběhlice, Chodov

V Holešovičkách

210

4

870
634

Liběň

5. května

211

8

1 286

Michle

Jižní spojka / South Connection

212

6

400

Záběhlice

K Barrandovu

213

4

320

Slivenec

Source: MHMP

Fig. B5.2.3  Illustration to the noise barrier construction on the Suspension Bridge on South Connection

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Detailed information on noise control measures in 2009:

  • Verification of the shape of current noise barriers at South Connection and Štěrboholská Radial Road (proposed repairs, potential for raising).
  • Preparations of noise control measures on the Průmyslová Street and on South Connection.
  • The construction both-sided 4-meter high noise barrier on the Suspension Bridge on South Connection was completed.
  • Tender for a supplier of a noise barrier on the bridge across Záběhlická Street on South Connection.
  • Implementation of noise control measures within new transport structures.
  • Feasibility and effect studies of noise control measures proposed in remarks to the Action Plan for Noise Reduction in the Prague Agglomeration. Proposals of noise control measures at 23 localities according to proposals from the general public were examined (in 8 cases their implementation was recommended). Assessment of the current and expected operations on the airports Letňany a Kbely.
  • Noise control measures in the scope of fulfilled Schedule for the Removal of the Old Noise Nuisance (TSK, DP).
  • Replacement of windows of selected residential houses in Hrusická, Zvánovická, and Hlavní Street (follow-up to the study Spořilovská).
  • Replacement of cobblestone paved lane surfaces with more silent bituminous ones on localities depending on views of historical monument care professionals because of the Prague Historical Reserve.
  • Finished repair of lanes and sidewalks on Anglická Street (TSK). Continued reconstruction of Terronská, Budějovická, Moskevská, and Francouzská Streets. Preparations of further 11 roads (streets of Myslíkova, Bubenská, Kodaňská, Zenklova, Rokycanova, Revoluční, Jugoslávská, Bělehradská, Korunovační, Na větrníku, and Komunardů) to be reconstructed.
  • Organisational measures – speed reduction and no entry to trucks and lorries, construction of telematic systems, and activities implemented within the BESIP (organisation for road traffic safety).
  • Noise measurements following the reconstruction of in Radlická Street (DP). Reconstruction of tram routes in streets of Střelničná, Ďáblická, Bělohorská, Újezd, and Štefánikova.
  • Implementation of the re-profiling of tramway rails by brushing in order to reduce noise generation. Technical measures in fleet – mounting of screens around tram bogies.

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B5.2.4  Other activities on noise issues

B5.2.4.1 Update of the section NOISE of the Project ENVIS4 in 2009

Following the basic part of the Project ENVIS4 planned regular updates have been implemented in 2009–2012. This way thematic maps and related data sets are renewed and updated every year. In the section of Noise works performed in 2099 were as follows:

  • Check and update of traffic data outcomes based on traffic surveys carried out within the section of Air.
  • Update of acoustic conditions state calculation within the whole affected area the Project is being solved for.
  • Control measurements of acoustic conditions state at three selected basic focus points of the calculation model calibration. The point selection was controlled by changes in traffic design and therefore by potential noise related changes in traffic intensity on the road network on the territory.
  • Update of GIS layers and data set of the information system.

Fig. B5.2.4  An example of 3D environment of the calculation model in the Project ENVIS4/Noise

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Source: MHMP, EKOLA group

B5.2.4.2 Assessment of noise conditions in Prague for the needs of the Land-Use Plan

In 2009 the study “Assessment of Effects of the Concept of Land-Use Plan of the City of Prague on Sustainable Land Development” was worked out for the City Development Authority by the company of EKOLA group. One of the most important factors in the City context, which the Capital City inhabitants were also very interested in, was expected trends in traffic load and the related acoustic impacts on the territory. The current and expected acoustic load were assessed and analysed on the basis of evaluation of Land-Use Plan concept and its current and projected traffic solutions.

On the basis of the acoustic assessment developed traffic noise sources on the territory of the city of Prague were assessed as follows:

    1. Road traffic, including operations of the public City transport (bus and tramway traffic).

    2. Railway traffic.

    3. Air traffic (airports Prague - Ruzyně, Prague - Kbely, and Prague - Letňany).

Tab. B5.2.2 Percentage share of areas affected by noise – descriptor Ldn [dB]

Praha
Prague

Procentní podíl ploch na území hl. m. ovlivněných hlukem – deskriptor Ldn [dB]
Percentage share of areas on the territory of the City of Prague affected by noise – descriptor Ldn [dB]

Varianta
Variant

do / up to
45 dB

45–50 dB

50–55 dB

55–60 dB

60–65 dB

65–70 dB

70–75 dB

75 dB
a více
and over

Stávající stav
Current state

16,3

18,3

23,0

18,5

11,8

6,7

3,1

2,2

2020 – základní řešení
Basic solution

9,8

17,7

22,5

21,6

14,0

7,9

4,1

2,4

2020 – variantní řešení
Alternative solution

9,2

17,0

22,5

21,9

14,4

8,2

4,4

2,4

Source: ÚRM, EKOLA group

Fig. B5.2.5  Examples of calculation results for the territory of the City of Prague

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Source: MHMP, EKOLA group

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© Magistrát hlavního města Prahy | Prague City Hall
Únor 2011 | February 2011