Maps page for "Noise" in "Prague"

Noise

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a) Road traffic noise maps

The latest updated Road Traffic Noise Map of Prague (HMAD) was compiled in 1996. Since 1976 it has been prepared every five years (PÚDIS).
The map shows equivalent noise levels along main roads established on the basis of approximately 500 measurements.

b) Noise load distribution maps

In the end of 1997 the last of the earlier planned Noise Load Distribution Maps (NLDM) of the territory of Prague (IMIP, PÚDIS, AKMEST) was completed. Prepared step by step since 1992 the maps cover the territory of the first to the tenth districts of Prague.
The
NLDMs show contour lines of daytime equivalent noise levels L_Aeq(dB(A)) on facades of especially residential buildings and other protected buildings, the contour line interval being 5 dB(A).
The maps summarize results of long-term measurements with a 24-hour cycle, short-term measurements (generally up to one hour) and calculated noise level based on engineering and traffic load information.
The maps show the noise situation over a large area. To achieve the required degree of accuracy a sufficient number of measurements must be made. For each administrative district there are tens of long-term and hundreds of short-term measurements (for example, Prague 9 required 38 long-term and 380 short-term measurements).
The boundaries of the different areas of survey do not necessarily coincide with those of administrative districts. The area of mapping is determined by available funding and measurement assets. Priority was assigned to the central part of the city.

Noise Load Distribution Map of Prague

Detailed outputs from the noise load distribution map project include the maps themselves (1: 5,000), protocols of all measurements, and accompanying text documentation.

Charts of selected long-term measurements made in connection with the compilation of the Noise Load Distribution Map of Prague 9 show the most important acoustic variables being monitored: equivalent noise level, L_Aeq, and percentage noise levels, L₉₀and L₁, i.e. the background noise level and maximum noise level. Results show that residents of many apartment houses are exposed to a facade noise level L_Aeq which is some 15 dB(A) higher than the relevant hygienic limit.

When evaluating a noise situation of a particular area an important criterion is represented by the percentages of population affected by excessive “residential” noise in the territory under observation at L_Aeq intervals of 5 dB(A). The objective of previous studies conducted for the seventh and second districts of Prague was, inter alia, to verify the usability of a methodology based on the GIS (Geographic Information System) technology. Subsequently, the noise exposure of the population in the whole territory covered by the Noise Load Distribution Map was calculated. See table

Noise exposure of population living in city planning districts according to NLDM

Maps in the report:

Noise protection zones of the Prague - Ruzyne Airport

Traffic-Generated Area Noise Map of Prague 2

Road traffic noise, noise-protection barriers and aircraft noise

There is also information related to this issue in the following sections of the report
	Health Transport Population Laws, policies, institutions Information