General Plan - Moreno Valley

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CHAPTER 6 – SAFETYSingle Event Noise Exposure Levels(SENEL's).A-weighted decibels (dBA) approximate thesubjective response of the human ear tonoise by discriminating against the very lowand high frequencies of the audiblespectrum. They are adjusted to reflect onlythose frequencies audible to the human ear.The decibel scale has a value of 1.0 dBA atthe threshold of hearing and 140 dBA at thethreshold of pain. Each increase of 10decibels indicates a ten-fold sound energyincrease, which is perceived by the humanear as being roughly twice as loud.Examples of the decibel level of variousnoise sources are the quiet rustle of leaves(10 dBA), a soft whisper (20 to 30 dBA) andthe hum of a small electric clock (40 dBA).Additional examples include the ambientnoise in a house kitchen (50dBA), normalconversation at 5 feet (55 dBA) and a busystreet at 50 feet (75 dBA).Day-night average sound levels (Ldn) are ameasure of cumulative noise exposure. TheLdn value results from a summation of hourlynoise levels over a 24-hour time period withan increased weighting factor applied to theperiod between 10:00 PM and 7:00 AM. Thistakes into account the fact that noise thatoccurs during normal sleeping hours is moreannoying. Community Noise EquivalentLevels (CNEL's) is a measure similar to Ldnexcept it includes an additional penalty fornoise that occurs between 7 p.m. and 10p.m. CNEL values are typically less thanone decibel higher than Ldn values.The Single Event Noise Exposure Level(SENEL) is the appropriate rating scale for asingle noise occurrence. The SENEL, givenin decibels, is the noise exposure level of asingle event measured over the time intervalbetween the initial and final times for which itexceeds the threshold noise level.For a "line source" of noise such as a heavilytraveled roadway, the noise level drops off atMORENO VALLEY GENERAL PLANa nominal rate of 3.0 decibels for eachdoubling of distance between the noisesource and noise receiver. Environmentalfactors such as the wind, temperature, thecharacteristics of the ground (hard or soft)and the air (relative humidity), the presenceof grass, shrubs and trees, combine toincrease the actual attenuation achievedoutside laboratory conditions to 4.5 decibelsper doubling of distance. Thus, a noise levelof 74.5 decibels at 50 feet from the highwaycenterline would attenuate to 70.0 decibelsat 100 feet, 65.5 decibels at 200 feet, and soforth.In an area, which is relatively flat and free ofbarriers, the sound level resulting from asingle "point source" drops by 6 decibels foreach doubling of distance. This applies tofixed noise sources such as industrialsources and mobile noise sources that aretemporarily stationary such as idling trucks.Important noise sources within the studyarea include industrial and utility uses,mechanical equipment, loud speakers,aircraft and motor vehicles. Noise levelsadjacent to roadways vary with the volume oftraffic, the mean vehicular speed, the truckmix and the road cross-section. High trafficvolumes and speed along State route 60 andarterial roadways contribute to high noiselevels. Noise levels due to air traffic from thejoint-use airport at March depend on aircraftcharacteristics, the number, path, elevationand duration of flights as well as the time ofday that flights take place.The results of the noise analysis prepared forthe environmental impact report for theGeneral Plan Update is shown in Figure 6-2.Figure 6-2 can be used as a general guide todetermine potential "worst case" future noiselevels for planning and design purposes.6.4.3 Community Responses to NoisePeople in general cannot perceive anincrease or decrease of 1.0 dBA except incarefully controlled laboratory experiments. APage 6-14 July 11, 2006
Blvd.MorenoQuincy St.Sinclair St.6560SanBoxSpringsMountainPark60SunnymeadRanch656060Pkwy.6570PerrisManzanita Ave.706560RiversideCountyTimoteoCanyonCity ofRiverside6065707580Day St.Box Springs Rd.Towngate606075St.Elsworth6565Blvd.70St.60 65 70 7570FrederickPigeon Pass Rd.706560656065St.GrahamMarch Air ReserveBase60St.Heacock706560706560IronwoodAve.Indian6560Ave.Blvd.Perris706570606060St.Kitching7065606565St.6565606060 65John F. Kennedy Dr.Laselle7070Eucalyptus60 65 7075Morrison St.Ave.65Cottonwood60Ave.AlessandroCactus80Nason St.706560Blvd.Ave.Fir Ave.75 6065 60607070Dracaea Ave.606560Dr.BeachLocust6065756070656065Ave.60Redlands Blvd.7065606560Theodore St.656060 65 706560A St.656070Spine Rd.65Virginia St.60Alessandro606560Gilman SpringsFir Ave.Blvd.65Rd.7075757080The Badlands6065707580IrisKramenia706560Ave.Ave.60706560657075Lake PerrisState Recreation AreaSan JacintoWildlife Preserve656060 65NandinaAve.75RiversideCounty8075 7065 60City of PerrisLake PerrisSanJacintoRiver
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CITY OF MORENO VALLEYGENERAL PLANJU
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PreambleThe City of Moreno Valley e
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TABLE OF CONTENTSMORENO VALLEY GENE
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CHAPTER 1 - INTRODUCTIONMORENO VALL
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San Bernardino CountyCALIMESA|ÿ 91
Page 22 and 23: CHAPTER 2 - COMMUNITY DEVELOPMENTMO
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Page 49 and 50: PERRIS BLVDBoxSpringsMountainRegion
Page 51 and 52: CHAPTER 5 - CIRCULATIONMORENO VALLE
Page 59 and 60: CHAPTER 6 - SAFETYMORENO VALLEY GEN
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Page 63 and 64: CHAPTER 6 - SAFETYthe entire police
Page 65 and 66: CHAPTER 6 - SAFETYfour firefighters
Page 67 and 68: CHAPTER 6 - SAFETYStation No. 91 is
Page 69 and 70: CHAPTER 6 - SAFETYmeasures must be
Page 71: CHAPTER 6 - SAFETYalso promoted by
Page 75 and 76: CHAPTER 6 - SAFETYThe Badlands rang
Page 77 and 78: CHAPTER 6 - SAFETYThe Richter Scale
Page 79 and 80: CHAPTER 6 - SAFETYUpon completion o
Page 81 and 82: CHAPTER 6 - SAFETYStandards - River
Page 83 and 84: CHAPTER 6 - SAFETYSunnymead Storm C
Page 85 and 86: CHAPTER 6 - SAFETYto allow for cons
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Page 89 and 90: CHAPTER 7 - CONSERVATIONMORENO VALL
Page 91 and 92: CHAPTER 7 - CONSERVATIONwas listed
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Page 99 and 100: CHAPTER 7 - CONSERVATIONalso reduce
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Page 103 and 104: CHAPTER 8 - HOUSINGMORENO VALLEY GE
Page 109 and 110: CHAPTER 8 - HOUSINGSingle parent fa
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CHAPTER 8 - HOUSING8.3.7 Elderly He
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CHAPTER 8 - HOUSINGpersons. The chi
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CHAPTER 8 - HOUSINGMORENO VALLEY GE
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CHAPTER 8 - HOUSINGHomeless provide
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CHAPTER 8 - HOUSINGThe Regional Hou
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CHAPTER 8 - HOUSINGThe only residen
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CHAPTER8 - HOUSINGMORENO VALLEY GEN
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CHAPTER 8 - HOUSINGlocated within t
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CHAPTER 8 - HOUSING8.6.3 Mobilehome
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CHAPTER 8 - HOUSINGconstruction of
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CHAPTER 8 - HOUSING8.6.7 Permit Pro
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CHAPTER 8 - HOUSING7. Drive aisles
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CHAPTER 8 - HOUSING8.6.12 Developme
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CHAPTER 8 - HOUSINGproperties or im
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CHAPTER 8 - HOUSING8.7 OVERVIEW: HO
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CHAPTER 8 - HOUSINGHOUSING ELEMENT
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CHAPTER 9 - GOALS AND OBJECTIVESMOR
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CHAPTER 9 - GOALS AND OBJECTIVESb.
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CHAPTER 9 - GOALS AND OBJECTIVESObj
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CHAPTER 9 - GOALS AND OBJECTIVEScri
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CHAPTER 9 - GOALS AND OBJECTIVES9.4
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CHAPTER 9 - GOALS AND OBJECTIVESseg
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CHAPTER 9 - GOALS AND OBJECTIVESsid
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LOS D is applicable to intersection
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PERRIS BLVDCANYON RDS AN TI MOTEORE
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CHAPTER 9 - GOALS AND OBJECTIVESup
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CHAPTER 10 - GLOSSARYthe pipelines,
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General Plan - Moreno Valley

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