Nocturnal Noise Level Indicator - Railway
Dataset mapping noise levels generated by rail transport infrastructure in France. It presents isophone curves at 5 dB(A) intervals starting from 50 dB(A), based on the Ln (Night) indicator, which measures average nighttime noise levels between 22:00 and 06:00. The data is produced for cartographic representation at a scale of 1:10,000 and is intended to be updated every five years. It supports noise-impact assessment near railway lines for planning and environmental monitoring purposes at the national level.Indicates noise levels induced by rail transport infrastructure. The mapping represents isophone curves plotted in increments of 5dB(A) from 50dB(A) The Ln (Night for Night) is the indicator of the average night noise level (22h-6h). The entry was made for a cartographic restitution scale of 1/10,000th. The cards will be updated every 5 years.
Trust score
How is this computed?Weighted across five axes. Tap a ring for what it measures.
Data access
This entry links to a dataset, file download, or documentation page rather than a self-describing API, so there's no field schema to display.