Day-night time normal level, DNL or LDN: This measurement assesses the cumulative publicity to sound for just a 24-hour interval (Leq over 24 hrs) of your 12 months, using a 10 dB(A) penalty or pounds additional to nighttime noise measurements supplied the elevated sensitivity to noise at nighttime. [13] Cambridge https://acoustic-performance15157.techionblog.com/32137105/5-easy-facts-about-urban-noise-solutions-described