Map layer: Noise
The Noise category shows calculated noise levels from road traffic and railways, along with the T-1442 warning zones used in land use planning. The layers are useful when assessing homes and office premises along busy roads, and for finding out whether a planning area is affected by a yellow or red noise zone. Noise zones are a planning consideration that can require noise mitigation as a condition in zoning.
Layers in this category (3)
| Layer | Description | Source |
|---|---|---|
| Rail/metro/tram noise | Calculated average 24-hour noise from railways and light rail at a height of 4 m | Miljødirektoratet |
| Noise mapping (T-1442) | Noise warning map with yellow and red zones under the national guideline | Miljødirektoratet |
| Noise Map – Rail | Average 24-hour noise from railways at 4 metres above ground, modelled (not measured) | Miljødirektoratet |
| Noise Map – Rail (Night) | Average night-time noise from railways at 4 metres above ground, modelled (not measured) | Miljødirektoratet |
| Noise Map – Rail – Metropolitan | Average 24-hour noise from railways at 4 metres above ground, modelled (not measured), for the metropolitan areas of Oslo, Bergen, Trondheim, Stavanger, Sarpsborg and Fredrikstad | Miljødirektoratet |
| Noise Map – Rail – Metropolitan (Night) | Average night-time noise from railways at 4 metres above ground, modelled (not measured), for Oslo, Bergen, Trondheim, Stavanger, Sarpsborg and Fredrikstad | Miljødirektoratet |
| Noise Map – Road – Metropolitan | Average 24-hour noise from road traffic at 4 metres above ground, modelled (not measured), for the large cities of Oslo, Bergen, Trondheim, Stavanger, Sarpsborg and Fredrikstad | Miljødirektoratet |
| Noise Map – Road – Metropolitan (Night) | Average night-time noise from road traffic at 4 metres above ground, modelled (not measured), for Oslo, Bergen, Trondheim, Stavanger, Sarpsborg and Fredrikstad | Miljødirektoratet |
Rail/metro/tram noise
The equivalent calculation for railways, metro and tram. Noise from rail-based traffic has different characteristics from road noise (more impulsive, and with greater variation between day and night), so it is shown in a separate layer. Source: Bane NOR and local public transport companies.
About the map layer
Average Lden noise from railways at a height of 4 metres. Modelled data, showing lines with at least 30,000 trains per year outside the cities (the situation around 2016).
Update frequency: updated manually.
Noise mapping (T-1442)
T-1442 is Miljødirektoratet's guideline for handling noise in land use planning. The layer shows the official warning zones:
- Yellow zone (Lden 55-65 dB): noise-sensitive buildings should normally not be established without noise mitigation.
- Red zone (Lden above 65 dB): homes and similar buildings should not be established.
The municipality uses the T-1442 zones as a basis in zoning plans. A planning project within a yellow or red zone must document satisfactory noise levels indoors and in outdoor areas. See guideline T-1442 for the requirements.
About the map layer
Forecasts for red (Lden>65 dB) and yellow (Lden>55 dB) noise zones along national and county roads, calculated with NorStøy (Nord2000Road) based on traffic data from NVDB.
Update frequency: weekly.
Sublayers (10)
| Sublayers | Description |
|---|---|
| Noise mapping – roads (T-1442) | Noise mapping of road traffic under guideline T-1442. |
| Rock unit (area) | Area layer for road noise mapping. |
| Noise zones – Avinor airports | Noise zones for airports operated by Avinor. |
| Rock unit (area) | Area layer for airport noise mapping. |
| Noise zones – Bane NOR railway network | Noise zones for the national railway network. |
| Rock unit (area) | Area layer for railway noise mapping. |
| Noise zones – Armed Forces airports | Noise zones for military airports. |
| Rock unit (area) | Area layer for military airport noise mapping. |
| Noise zones – Armed Forces shooting & training areas (T-1442) | Noise zones for military shooting and training areas under T-1442. |
| Rock unit (area) | Area layer for shooting and training area noise mapping. |
The layer is a collection of five sublayers that you can turn on and off individually, in the same way as in V1:
- Noise mapping – roads (T-1442)
- Noise zones – Avinor airports
- Noise zones – Bane NOR railway network
- Noise zones – Armed Forces airports
- Noise zones – Armed Forces shooting & training areas (T-1442)
You can filter each sublayer by noise zone (red or yellow) and municipality in the filter panel.
Noise Map – Rail
Average 24-hour noise from railways at 4 metres above ground, modelled (not measured). The maps show the situation in 2016.
About the map layer
Average 24-hour noise from railways at 4 metres above ground, modelled (not measured). The maps show the situation in 2016. Not for use in land use planning.
Noise Map – Rail (Night)
Average night-time noise from railways at 4 metres above ground, modelled (not measured). The maps show the situation in 2016.
About the map layer
Average night-time noise from railways at 4 metres above ground, modelled (not measured). The maps show the situation in 2016. Not for use in land use planning.
Noise Map – Rail – Metropolitan
Average 24-hour noise from railways at 4 metres above ground, modelled (not measured), for the metropolitan areas of Oslo, Bergen, Trondheim, Stavanger, Sarpsborg and Fredrikstad. The maps show the noise situation as it was in 2016.
About the map layer
Average 24-hour noise from railways at 4 metres above ground, modelled (not measured), for the metropolitan areas of Oslo, Bergen, Trondheim, Stavanger, Sarpsborg and Fredrikstad. The maps show the noise situation as it was in 2016. The noise map cannot be used for land use planning.
Sublayers (9)
| Sublayers | Description |
|---|---|
| Metropolitan areas | Urban areas included in the mapping of rail noise. |
| Coverage overview | Overview of the mapping coverage. |
| Level 1 | Coverage level 1. |
| Level 2 | Coverage level 2. |
| Level 3 | Coverage level 3. |
| Rail noise – metropolitan (24h) | Rail noise day-evening-night in metropolitan areas. |
| Rail noise (24h) | Rail noise day-evening-night. |
| Rail noise – metropolitan (night) | Rail noise at night in metropolitan areas. |
| Rail noise (night) | Rail noise at night. |
Noise Map – Rail – Metropolitan (Night)
Average night-time noise from railways at 4 metres above ground, modelled (not measured), for Oslo, Bergen, Trondheim, Stavanger, Sarpsborg and Fredrikstad. The maps show the noise situation as it was in 2016.
About the map layer
Average night-time noise from railways at 4 metres above ground, modelled (not measured), for Oslo, Bergen, Trondheim, Stavanger, Sarpsborg and Fredrikstad. The maps show the noise situation as it was in 2016. The noise map cannot be used for land use planning.
Noise Map – Road – Metropolitan
Average 24-hour noise from road traffic at 4 metres above ground, modelled (not measured), for the large cities of Oslo, Bergen, Trondheim, Stavanger, Sarpsborg and Fredrikstad. The maps show the noise situation as it was in 2016.
About the map layer
Average 24-hour noise from road traffic at 4 metres above ground, modelled (not measured), for the large cities of Oslo, Bergen, Trondheim, Stavanger, Sarpsborg and Fredrikstad. The maps show the noise situation as it was in 2016. The noise map cannot be used for land use planning.
Sublayers (9)
| Sublayers | Description |
|---|---|
| Metropolitan areas | Urban areas included in the road noise mapping. |
| Coverage overview | Overview of the mapping coverage. |
| Level 1 | Coverage level 1. |
| Level 2 | Coverage level 2. |
| Level 3 | Coverage level 3. |
| Road noise – metropolitan (24h) | Road noise day-evening-night in metropolitan areas. |
| Road noise (24h) | Road noise day-evening-night. |
| Road noise – metropolitan (night) | Road noise at night in metropolitan areas. |
| Road noise (night) | Road noise at night. |
Noise Map – Road – Metropolitan (Night)
Average night-time noise from road traffic at 4 metres above ground, modelled (not measured), for Oslo, Bergen, Trondheim, Stavanger, Sarpsborg and Fredrikstad. The maps show the noise situation as it was in 2016.
About the map layer
Average night-time noise from road traffic at 4 metres above ground, modelled (not measured), for Oslo, Bergen, Trondheim, Stavanger, Sarpsborg and Fredrikstad. The maps show the noise situation as it was in 2016. The noise map cannot be used for land use planning.
Tips
- The noise maps cover calculated noise, not measured noise. For design purposes, you must order a noise analysis from an acoustics consultant.
- The Pollution category contains the same noise layers: see Pollution for a combined view with air pollution and contaminated ground.
- Noise zones are not the same as a value discount: many homes in a yellow zone are valued highly because of their central location. Combine this with Property prices for a complete location assessment.