Lden - Strategic Noise Maps of Large Railway Axes of the Valencian Community - 4th phase

Lden of the strategic noise maps of large railway axes of the Valencian Community - 4th phase. Lden is defined as the day-evening-night noise index, which is the noise index associated with the overall nuisance, expressed in decibels (dB) and defined according to Royal Decree 1513/2005 of BOE 301 of 17/12/2005. Large railway axes, are those that have a number of circulations greater than 30,000 trains / year