Day-night time typical amount, DNL or LDN: This measurement assesses the cumulative exposure to sound for the 24-hour period of time (Leq over 24 hrs) of your year, with a 10 dB(A) penalty or excess weight added to nighttime noise measurements specified the elevated sensitivity to noise during the night. https://troykbrlz.blogdeazar.com/32072661/5-easy-facts-about-urban-noise-solutions-described