Data Layer

Noise map of Latvia

An interactive noise map — how loud the place where you plan to live really is. The map shows noise levels in decibels around major roads, the railway, the airport and industrial sites, separately for the whole day and for the night.

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Real, currently active data — click to open the full interactive map

What is this

Noise maps are produced under the EU Environmental Noise Directive: every five years, member states model how loud it is around major noise sources. In Latvia these are the Riga agglomeration, roads with more than 3 million vehicles per year, railways with more than 30 thousand trains per year and Riga Airport. Only one single railway line exceeds the threshold — Riga–Krustpils, and even there only the first 50 km to Ogre; further towards Aizkraukle and Krustpils the train flow is below the threshold, so mapping is not required and there is no data. The result is contours — areas where the noise level falls within a certain decibel band.

The map has two indicators. Lden is the day-evening-night indicator, where 5 dB is added to evening hours and 10 dB to night hours — this is how the EU assesses overall annoyance. Lnight covers only the night, from 23:00 to 7:00, and in practice this is what decides whether you can get a night's sleep. Latvia's Cabinet Regulation No. 16 sets the night limit for residential areas at 45 dB.

It is important to understand what the map does not show: it is not a measurement at your wall but a model that works with traffic intensity, speed, road surface and terrain. It also does not cover all of Latvia — outside the mapped sources there are simply no contours, and that does not mean silence, but that the place has not been modelled.

📊 Source: LVĢMC — strategic noise maps under the EU Environmental Noise Directive (CC0)

What you will learn

How to use

  1. Open the map with the noise layer — the contours are coloured from green (quiet) to violet (loud).
  2. Switch the indicator to “Night” if sleep matters more than the daily average.
  3. Choose the source — roads, railway, airport or industry — to see what exactly makes the noise.
  4. Find the house by address and see which band it falls into.
  5. Open the property card — the noise level is already calculated for that specific land parcel.

Frequently Asked Questions / FAQ

How do I find out the noise level at my address?
Open the noise map, find the address and see which colour band the property falls into. The property card shows it even more precisely: it compares the land parcel's boundaries with the noise contours and reports the highest decibel band touching the property, both for the whole day and for the night.
What are Lden and Lnight?
Lden is the day-evening-night indicator, where 5 dB is added to the evening and 10 dB to the night, because noise disturbs more at those times. Lnight covers only the night period from 23:00 to 7:00. Two places can have the same Lden but a completely different night level — for example, the railway also runs at night, while street traffic quiets down.
How many decibels is too many?
Cabinet Regulation No. 16 sets the noise limits for residential areas at 55 dB by day and 45 dB at night. In practice, 55–60 dB is an apartment on a busy street, 65–70 dB is a house right by a motorway, and above 70 dB an open window is no longer an option.
Why is there no data in my area?
Only the Riga agglomeration, roads with more than 3 million vehicles per year, the Riga–Ogre railway section and the airport are mapped. Outside of these, the EU directive does not require mapping, so there are no contours. It means “not modelled”, not “no noise”.
Does noise affect property value?
It does, and most often it is precisely the night level. A loud motorway or railway under the windows narrows the circle of buyers and lengthens the selling time. It also means real costs — replacing windows with soundproof ones or a ventilation solution so the window does not have to stay open at night.
Where does the noise data come from?
From the LVĢMC open data “Environmental noise” (CC0) — the strategic noise maps under the EU Environmental Noise Directive that Latvia reports to the European Commission.

Check how loud the place you plan to live in really is

An interactive map with noise levels, day and night indicators and source selection. Search by address or cadastre number.

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