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<br />e <br /> <br />NOISE ORDINANCE <br />PRESENT ATION TO CITY COUNCIL <br /> <br />What Is Noise? <br /> <br />Noi~e is any <br /> <br />.sound due to irr.::gular vibration <br />.sound which causes discomfort to the hearer <br /> <br />Noise lntensity <br /> <br />Noise intensity is me,,,..uw:l in decibel units. <br /> <br />E.,ch IO-decibel is perceived as roughly a doubling of <br />loudness, e,g. <br /> <br />30 decihels is ten times more intense than 20 <br />decibels and sOWlds twice as loud <br /> <br />80 decibels is I million times more intense than <br />20 decibeL. and sound. 64 times as loud. <br /> <br />Noise Regulations in La Porte <br /> <br />Noise violations are mentioned in four chapters of the, <br />City's Code of Ordinances. <br /> <br />.Chapter 10: Amusements - Section 10-79. Coin- <br />Operated Machines <br /> <br />.Chapter 14: Animals - Section 14-107, Barking Dog.. <br /> <br />.Chapter 34: En,ironment - Section 34-91 <br /> <br />.Chapter 1(.,' Zoning - Section 106,521. Industrial <br />Areas <br /> <br />e <br /> <br />APRIL 8, 2002 <br /> <br />Noise Pollution <br /> <br />Noise pollution describes <br /> <br />-an excessive noise in the environment; <br /> <br />.added sOWld to the em~ronment beyond the natural sources <br /> <br />Noise pollution is measured four wa)'s' <br /> <br />-intensit,.., <br /> <br />.duration. <br />.frequency, Bnd <br />.frequency of duration <br /> <br />Typical Noise Level Comparison <br /> <br /> <br />120 <br /> <br />100 <br />so/ <br /> <br />60/ <br /> <br />4lI" <br />20 .- <br /> <br />o <br /> <br />db. <br /> <br />[J Quiet room CI RtfrlguRlnf . Normal couversaUoD <br />. K1 tcben elhaust fan e GIIrbaee dlspollll . 'Lawn moWer <br />. Circular saw <br /> <br />Noise Ordinances <br /> <br />Noise ordinanc,,"s were examined fmm the following <br />cities' <br /> <br />Less Stringent <br /> <br />More Stringent <br /> <br />Baylo\1lll <br />Te:Gs City <br />Stnfford <br /> <br />Hl\1~on <br />Pasadena <br />Friendswood <br />League City <br /> <br />1 <br />