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ABOUT THE MAP. This map shows the projected exterior levels of noise (based on buildout of the land use plan), created by cars, trucks, or <br />trains traveling along roadways and rail lines in the city. The City's noise and land use compatibility standards (see Table N-1) consider exterior <br />levels above 65 decibels (d BA CNEL) to be generally incompatible for residential and other noise -sensitive land uses. <br />Future Noise Contours <br />_ 70+ dBA CNEL •.... - Railway <br />_ 65 dBA CNEL <br />60 dBA CNEL <br />01 tirr.i..•• CITY OF SANTA ANA GENERAL PLAN <br />Soume: PlaceWorks 202D WN, Published: 9/20/2020 <br />Community Noise Equivalent Level (CNEL): The energy -average of the sound levels <br />during a 24-hour period, with 5 decibels WEI) added to the levels from 7:00 pm to 10:00 <br />pm and 10 dB added from 10:00 one to 7:00 am. The decibels are measured in terms of <br />relatives loudness as perceived by the human ear, referred to as A -weighted decibels WK. <br />FIGURE N-2 <br />FUTURE NOISE CONTOURS <br />