APPENDIX E: NOISE MONITORING DATA

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1 APPENDIX E: NOISE MONITORING DATA...

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11 Chapter 8.16 NOISE CONTROL Declaration of policy. In accordance with the Atherton General Plan, which seeks to maintain Atherton as a rural residential area, it is the policy of the town to protect the peace, health and safety of its citizens from unnecessary and unreasonable noise produced by any person, machine, animal or device. (Ord (part), 1999) Definitions. As used in this chapter: A. A-weighted sound level is the sound level in decibels as measured on a sound level meter using the A-weighting network. The level so read is designated db(a) or dba. B. Ambient is the composite of noise from all sources near and far. In this context, the ambient noise level constitutes the normal or existing level of environmental noise at a given location. C. Construction means the act or process of building including but not limited to site preparation, alteration, repair, remodeling, assembly, erection or similar action, of buildings, structures, pavement, flat work and other works including the use of power equipment in connection with activities therewith. Construction activities do not include radios or other forms of amplified music on a construction site. D. Delivery means delivery of building materials or equipment to any construction project. E. Emergency means an unforeseen combination of circumstances which require immediate action. F. Noise disturbance means any source of sound which exceeds the noise limitations permitted in Section of this chapter. For purposes of this section sources of sound shall include but not be limited to the following: amplified music, loudspeakers, radios, televisions, stereos, musical instruments, powered toys or models, swimming pools or spas, pile drivers, air compressors, paint sprayers, motors, pumps, blowers, air conditioners, cooling towers, ventilating fans, fork lifts, loaders, tractors, animals, concerts, mechanical equipment, human voices, electrical appliances, vacuum cleaners, powered equipment, chain saws, motor vehicles and attached equipment not operated on a street or highway. G. Noise level means the maximum continuous sound level or repetitive peak level measured using the A scale set on slow. H. Precision sound level meter means a device for measuring sound pressure level in decibel units according to the American National Standards Institute Type 1 or Type 2 measuring instruments. I. Sound level shall be expressed in decibels (dba) as defined by the American National Standards Institute using the A-level scale. J. Vehicle means any device by which any person or property may be propelled, moved or drawn upon a highway or street or private property. (Ord (part), 1999)

12 Basic noise regulation. Except as otherwise permitted under this chapter, no person shall cause and no property owner shall permit on such owners property, a noise produced by any person, machine, animal or device, or any combination thereof, in excess of the sound level limits set forth in this section to emanate from any property, public or private, beyond the property line. Any sound in excess of the sound level limits set forth in this section shall constitute a noise disturbance. For purposes of determining sound levels, sound level measurements shall be made at any location on the receiving property. Sound Level Limits 7 a.m. to 10 p.m. 60 dba 10 p.m. to 7 a.m. 50 dba A. In the event the alleged offensive noise contains a steady, audible tone, such as a whine, beating, pulsating, throbbing, or hum, the standards set forth in Section shall be reduced by five db. B. In the event the ambient sound level equals or exceeds the sound level limit then the limit shall be five dba over the ambient. (Ord (part), 1999) Noise disturbance prohibited. A. Any and all excessively annoying, loud or unusual noises or vibrations such as offend the peace and quiet of persons of ordinary sensibilities and which interfere with the comfortable enjoyment of life or property and affect at the same time an entire neighborhood or any considerable number of persons shall be considered a noise disturbance. B. It shall be unlawful to create, permit, allow, or maintain a noise disturbance in the town of Atherton. (Ord (part), 1999) Special provisions and exceptions. The basic noise regulation specified in Section may be exceeded without permit in any instances listed below. At all other times, noise from illicit activities shall not exceed the basic noise regulation established in Section : A. Construction. 1. Construction and delivery are exempt from the basic noise regulation during the times and on the days when construction activities are allowed pursuant to the terms and provisions of Chapter Residents/property owners when personally operating equipment are exempt from the basic noise regulation when they are personally undertaking construction activities to maintain or improve their

13 property on Saturdays, Sundays, or holidays between the hours of ten a.m. and five p.m. Such activities are restricted to the use of hand and power tools only. 3. At all times loud and raucous noise emanating from any construction or delivery site, whether in the form of broadcast or amplified music or any other form, which is audible on any property other than the property from which it emanates, is prohibited. B. Power Garden Equipment. 1. Power garden equipment including but not limited to, leaf-blowers, vacuums, power mowers, rototillers, and other similar equipment are exempt from the basic noise regulation between the hours of eight a.m. and six p.m. Monday through Friday, ten a.m. and five p.m. on Saturday and ten a.m. and three p.m. on Sunday. 2. Heavy duty equipment including but not limited to wood-chippers, chain-saws, stump-removers and other similar equipment are exempt from the basic noise regulation between the hours of eight a.m. and five p.m. Monday through Friday only. 3. All garden, maintenance and construction equipment used in the town must be equipped with a muffler where applicable and be in good repair. C. Motor Vehicles. Motor vehicles may be operated on public streets and highways within the town in accordance with the noise emission standards prescribed by the state Vehicle Code. It is the town s policy that all sworn personnel be trained in the enforcement of this section of the Vehicle Code. D. Social Gatherings. The noise from social gatherings may exceed the basic noise regulation between the hours of ten a.m. and midnight, Fridays and Saturdays, and ten a.m. and ten p.m. Sundays and holidays. The noise levels produced by such gatherings shall not exceed seventy-five dba when measured from any adjacent residential property. E. Animals. Sounds from animals are exempt unless such animal howls, barks, meows, squawks, or makes other noises continuously and/or incessantly for a period of five minutes or intermittently for one-half hour. F. Emergency and Safety Devices. The provisions of this chapter shall not apply to: 1. The emission of sound for the purpose of alerting persons to the existence of an emergency; 2. The emission of sound in the performance of emergency response; or 3. The emission of sound in connection with the protection of the health and safety of Atherton residents or their property during emergency conditions. Warning devices necessary for the protection of public safety, as for example, police, fire and ambulance sirens, and train horns, shall be exempted from the provisions of this chapter.

14 G. Little League Field at Holbrook-Palmer Park. The noise from practice and games at the Little League Field at Holbrook-Palmer Park may exceed the basic noise regulations during the Little League season between the hours of four-thirty p.m. to seven-thirty p.m. weekdays and eight forty-five a.m. to fourthirty p.m. Saturdays only. The noise levels produced by such games shall not exceed seventy-five dba when measured at any adjacent residential property. (Ord , 2000; Ord , 2000; Ord (part), 1999) Aircraft regulations. It shall be the policy of the town to work with nearby communities and other interested agencies to bring about a reduction of noise levels by private, military, public and commercial airplanes and helicopters. (Ord (part), 1999) Permit to exceed noise levels. A. The police chief may grant a permit to waive time and noise level limitations on equipment when it is required to protect lives or property. B. Special events or circumstances may warrant temporary exception to noise levels established in this section. In such cases application for a permit may be made to the chief of police, stating in writing: 1. The name, address and telephone number of the property owner responsible for the activity; and 2. The purpose for which such permit is applied, the date and beginning and ending time thereof, and a description of the sound-producing or sound-amplifying device to be used, together with a full statement of reasons justifying noncompliance. Such permits shall be issued or maybe denied at the time of application based upon a balancing of the interests of the applicant against those of surrounding residents, to include consideration of duration of the permit, frequency of occurrence, number of persons benefited by the activity and other similar factors. C. An appeal from the decision by the chief of police on a permit to exceed noise levels shall be in writing and state the facts upon which an error, omission or abuse of discretion is alleged. All appeals shall be made within ten calendar days from the date of the decision. The appeal shall be made to the city clerk who shall place the item on the agenda for next available city council meeting which shall be at least fifteen calendar days from the date of appeal. All interested parties shall have the opportunity to speak on the item at the city council meeting. The city council shall act on the appeal within sixty days of the hearing and may affirm, reverse or modify the decision of the chief of police, based upon appropriate findings. D. All permits issued under this chapter shall be issued for a limited time period. (Ord (part), 1999) Administration.

15 The provisions of this chapter shall be administered by the chief of police and his or her authorized representatives, except where expressly provided otherwise. All other officers and employees of the town shall assist and cooperate in the administration and enforcement of this chapter. (Ord (part), 1999) Violations. First time violators will be warned and subsequent violations of the provisions of this chapter shall be guilty of an infraction and shall be punished as provided in Section (Ord (part), 1999) CONSTRUCTION HOURS Time limits. A. Except as otherwise provided in this chapter, construction, pickup and delivery shall be prohibited on any property within the town between the hours of five p.m. in the evening and eight a.m. of the following day, Monday through Friday. B. Construction, pickup and delivery shall be prohibited on any property within the town on Saturday, Sunday and any holiday. C. Residents/property owners when they are personally undertaking construction activities to maintain or improve their property on Saturdays, Sundays or holidays between the hours of ten a.m. and five p.m. are exempted from the foregoing prohibitions. Such activities are restricted to the use of hand and power tools only. D. Emergency construction required for the immediate protection of persons and property including, but not limited to, plumbing, electrical and roof repairs is exempt from the foregoing prohibitions. (Ord , 2001; Ord (part), 2000)

16 90 Atherton Civic Center Short-Term Monitoring Site 1 80 A-weighted, L eq Sound Levels, dba re 20 µpa :20 12:21 12:23 12:24 12:25 12:27 12:28 12:30 12:31 12:33 12:34 12:36 12:37 12:38 Time-of-Day, Tue 1/6/15

17 90 Atherton Civic Center Short-Term Monitoring Site 2 80 A-weighted, L eq Sound Levels, dba re 20 µpa :02 14:03 14:05 14:06 14:08 14:09 14:11 14:12 14:13 14:15 14:16 14:18 14:19 Time-of-Day, Tue 1/6/15

18 Atherton Civic Center Short-Term Monitoring Site A-weighted, L eq Sound Levels, dba re 20 µpa :26 14:28 14:29 14:31 14:32 14:34 14:35 14:36 14:38 14:39 14:41 14:42 14:44 14:45 14:47 Time-of-Day, Tue 1/6/15

19 90 Atherton Civic Center Short-Term Monitoring Site 4 80 A-weighted, L eq Sound Levels, dba re 20 µpa :02 15:04 15:05 15:07 15:08 15:10 15:11 15:12 15:14 15:15 15:17 15:18 15:20 Time-of-Day, Tue 1/6/15

20 Atherton Civic Center Long-term Interval Data TATH-01.0 Time Leq Lmax Lmin L2 L8 L16 L25 L50 L90 11:35: :00: :00: :00: :00: :00: :00: :00: :00: :00: :00: :00: :00: :00: :00: :00: :00: :00: :00: :00: :00: :00: :00: :00: :00: hr Leq CNEL Ldn

21 Atherton Civic Center Long-Term Monitoring Site 1, Hourly Leq Values A-weighted, Hourly L eq Sound Levels, dba re 20 µpa :35 12:35 13:35 14:35 15:35 16:35 17:35 18:35 19:35 20:35 21:35 22:35 23:35 0:35 1:35 2:35 3:35 4:35 5:35 6:35 7:35 8:35 9:35 10:35 Time-of-Day (24-hr format), Tue 1/6/15 to Wed 1/7/15

22 Construction Generated Vibration Vibration Annoyance Criteria Receptor: Average Vibration Level - Houses across tracks Average Distance (feet): 225 Approximate Velocity Approximate Velocity Equipment Level at 25 ft, VdB Level, VdB Vibratory Roller Caisson Drill Large bulldozer Small bulldozer Jackhammer Loaded trucks Criteria 78 Receptor: Average Vibration Level - Houses across Fair Oaks Lane Average Distance (feet): 400 Approximate Velocity Approximate Velocity Equipment Level at 25 ft, VdB Level, VdB Vibratory Roller Caisson Drill Large bulldozer Small bulldozer Jackhammer Loaded trucks Criteria 78 Receptor: Average Vibration Levels - 76 Fair Oaks Lane Average Distance (feet): 250 Approximate Velocity Approximate Velocity Equipment Level at 25 ft, VdB Level, VdB Vibratory Roller Caisson Drill Large bulldozer Small bulldozer Jackhammer Loaded trucks Criteria 78 Receptor: Average Vibration Levels - Ashfield Road Average Distance (feet): 200 Approximate Velocity Approximate Velocity Equipment Level at 25 ft, VdB Level, VdB Vibratory Roller Caisson Drill Large bulldozer Small bulldozer Jackhammer Loaded trucks Criteria 78 Receptor: Average Vibration Levels - Maple Avenue Average Distance (feet): 375 Approximate Velocity Approximate Velocity Equipment Level at 25 ft, VdB Level, VdB Vibratory Roller Caisson Drill Large bulldozer Small bulldozer Jackhammer Loaded trucks Criteria 78

23 Construction Generated Vibration Vibration Annoyance Criteria Receptor: Average Vibration Level - Corporation Yard Average Distance (feet): 325 Approximate Velocity Approximate Velocity Equipment Level at 25 ft, VdB Level, VdB Vibratory Roller Caisson Drill Large bulldozer Small bulldozer Jackhammer Loaded trucks Criteria 78

24 Construction Generated Vibration Structural Damage Criteria Receptor: Maximum Vibration Levels - Houses across tracks Closest Distance (feet): 125 Approximate RMS a Approximate RMS Velocity at 25 ft, Velocity Level, Equipment inch/second inch/second Vibratory Roller Caisson Drill Large bulldozer Small bulldozer Jackhammer Loaded trucks Criteria Receptor: Maximum Vibration Levels - Houses across Fair Oaks Lane Closest Distance (feet): 400 Approximate RMS a Approximate RMS Velocity at 25 ft, Velocity Level, Equipment inch/second inch/second Vibratory Roller Caisson Drill Large bulldozer Small bulldozer Jackhammer Loaded trucks Criteria Receptor: Maximum Vibration Levels - 76 Fair Oaks Lane Closest Distance (feet): 35 Approximate RMS a Approximate RMS Velocity at 25 ft, Velocity Level, Equipment inch/second inch/second Vibratory Roller Caisson Drill Large bulldozer Small bulldozer Jackhammer Loaded trucks Criteria Receptor: Maximum Vibration Levels - Maple Avenue Closest Distance (feet): 30 Approximate RMS a Approximate RMS Velocity at 25 ft, Velocity Level, Equipment inch/second inch/second Vibratory Roller Caisson Drill Large bulldozer Small bulldozer Jackhammer Loaded trucks Criteria Receptor: Maximum Vibration Levels - Corporation Yard Closest Distance (feet): 60 Approximate RMS a Approximate RMS Velocity at 25 ft, Velocity Level, Equipment inch/second inch/second Vibratory Roller Caisson Drill Large bulldozer Small bulldozer Jackhammer Loaded trucks Criteria Determined based on use of jackhammers or pneumatic hammers that may be used for pavement demolition at a distance of 25 feet Notes: RMS velocity calculated from vibration level (VdB) using the reference of one microinch/second. Source: Based on methodology from the United States Department of Transportation Federal Transit Administration, Transit Noise and Vibration Impact Assessment

25 Noise Levels During Construction Reference Levels: Construction Noise at 50 Feet (dba Leq) 1 Distance: Receptor to center of activity Distance: Receptor to border of site Average Level Maximum Level Construction Phase (dba Leq) 2 (dba Lmax) 3 Demolition Site Prep Grading Building Construction Paving +Architectural Coating Drop Off hard=0; soft=0.5 Construction Noise at Houses on Marianna Lane Distance: Receptor to center of activity Distance: Receptor to border of site Maximum Level (dba Lmax) 3 Average Level Construction Phase (dba Leq) 2 Demolition Site Prep Grading Building Construction Paving +Architectural Coating Construction Noise at Houses across Fair Oaks Lane Distance: Receptor to center of activity Distance: Receptor to border of site Maximum Level (dba Lmax) 3 Average Level Construction Phase (dba Leq) 2 Demolition Site Prep Grading Building Construction Paving +Architectural Coating Construction Noise at 76 Fair Oaks Lane Distance: Receptor to center of activity Distance: Receptor to border of site Maximum Level (dba Lmax) 3 Average Level Construction Phase (dba Leq) 2 Demolition Site Prep Grading Building Construction Paving +Architectural Coating 72 93

26 Construction Noise to nearest house on Ashfield Road Distance: Receptor to center of activity Distance: Receptor to border of site Maximum Level (dba Lmax) 3 Average Level Construction Phase (dba Leq) 2 Demolition #DIV/0! Site Prep 76 #DIV/0! Grading 75 #DIV/0! Building Construction 73 #DIV/0! Paving +Architectural Coating 74 #DIV/0! Construction Noise at nearest house on Maple Avenue Distance: Receptor to center of activity Distance: Receptor to border of site Maximum Level (dba Lmax) 3 Average Level Construction Phase (dba Leq) 2 Demolition Site Prep Grading Building Construction Paving +Architectural Coating Construction Noise at Corporation Yard Distance: Receptor to center of activity Distance: Receptor to border of site Maximum Level (dba Lmax) 3 Average Level Construction Phase (dba Leq) 2 Demolition Site Prep Grading Building Construction Paving +Architectural Coating Calculations based on the Roadway Construction Noise Model with the construction information provided by the applicant. 2 Average daily noise level including all equipment in use simultaneously considering utilization factors. 3 Maximum instanteneous noise level from the loudest equipment used during the construction phase.

27 Report date: 12/10/2014 Case Description: Demolition Demolition.txt Roadway Construction Noise Model (RCNM),Version 1.1 **** Receptor #1 **** Baselines (dba) Description Land Use Daytime Evening Night Receptor at 50 ft Residential Equipment Spec Actual Receptor Estimated Impact Usage Lmax Lmax Distance Shielding Description Device (%) (dba) (dba) (feet) (dba) Concrete Saw No Excavator No Excavator No Excavator No Dozer No Dozer No Results Noise Limit Exceedance (dba) Noise Limits (dba) Calculated (dba) Day Evening Night Day Evening Night Equipment Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Concrete Saw N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Excavator N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Excavator N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Excavator N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Dozer N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Dozer N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Total N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Page 1

28 Report date: 12/10/2014 Case Description: Demolition Site Prep.txt Roadway Construction Noise Model (RCNM),Version 1.1 **** Receptor #1 **** Baselines (dba) Description Land Use Daytime Evening Night Receptor at 50 ft Residential Equipment Spec Actual Receptor Estimated Impact Usage Lmax Lmax Distance Shielding Description Device (%) (dba) (dba) (feet) (dba) Pavement Scarafier No Backhoe No Backhoe No Dozer No Dozer No Dozer No Tractor No Tractor No Results Noise Limit Exceedance (dba) Noise Limits (dba) Calculated (dba) Day Evening Night Day Evening Night Equipment Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Pavement Scarafier N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Backhoe N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Backhoe N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Dozer N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Dozer N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Dozer N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Tractor N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Tractor N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Total N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Page 1

29 Report date: 12/10/2014 Case Description: Grading Grading.txt Roadway Construction Noise Model (RCNM),Version 1.1 **** Receptor #1 **** Baselines (dba) Description Land Use Daytime Evening Night Receptor at 50 ft Residential Equipment Spec Actual Receptor Estimated Impact Usage Lmax Lmax Distance Shielding Description Device (%) (dba) (dba) (feet) (dba) Excavator No Backhoe No Grader No Dozer No Tractor No Tractor No Results Noise Limit Exceedance (dba) Noise Limits (dba) Calculated (dba) Day Evening Night Day Evening Night Equipment Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Excavator N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Backhoe N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Grader N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Dozer N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Tractor N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Tractor N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Total N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Page 1

30 Report date: 12/10/2014 Case Description: Building Construction Building Construction.txt Roadway Construction Noise Model (RCNM),Version 1.1 **** Receptor #1 **** Baselines (dba) Description Land Use Daytime Evening Night Receptor at 50 ft Residential Equipment Spec Actual Receptor Estimated Impact Usage Lmax Lmax Distance Shielding Description Device (%) (dba) (dba) (feet) (dba) Man Lift No Man Lift No Man Lift No Backhoe No Generator No Welder / Torch No Tractor No Tractor No Results Noise Limit Exceedance (dba) Noise Limits (dba) Calculated (dba) Day Evening Night Day Evening Night Equipment Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Man Lift N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Man Lift N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Man Lift N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Backhoe N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Generator N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Welder / Torch N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Tractor N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Tractor N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Total N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Page 1

31 Paving + Architectural Coating.txt Roadway Construction Noise Model (RCNM),Version 1.1 Report date: 12/10/2014 Case Description: Paving + Architectural Coating **** Receptor #1 **** Baselines (dba) Description Land Use Daytime Evening Night Receptor at 50 ft Residential Equipment Spec Actual Receptor Estimated Impact Usage Lmax Lmax Distance Shielding Description Device (%) (dba) (dba) (feet) (dba) Compressor (air) No Concrete Mixer Truck No Paver No Backhoe No Pavement Scarafier No Paver No Concrete Mixer Truck No Roller No Roller No Results Noise Limit Exceedance (dba) Noise Limits (dba) Calculated (dba) Day Evening Night Day Evening Night Equipment Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Lmax Leq Compressor (air) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Concrete Mixer Truck N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Paver N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Backhoe N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Pavement Scarafier N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Paver N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Concrete Mixer Truck N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Roller N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Roller N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Total N/A N/A N/A N/A N/A Page 1

32 Paving + Architectural Coating.txt N/A N/A N/A N/A N/A N/A N/A Page 2

33 Atherton Civic Center EXISTING NO PROJECT CONDITIONS NOISE CONTOURS RESULT SUMMARY TABLE DAILY TRAFIC NOISE LEVEL AT 50 FT. DISTACE TO NOISE CONTOUR (FT.) 70 dba CNEL 65 dba CNEL 60 dba CNEL # ROADWAY SEGMENT VOLUMES (dba CNEL) 1 Fair Oaks Lane McCormick Lane to Lloyden Drive 5, Fair Oaks Lane Lloyden Drive to Ashfield Road 5, Fair Oaks Lane Ashfield Road to El Camino Real 4, Atherton Avenue El Camino Real to Austin Avenue 6, Ashfield Road Fair Oaks Lane to Project site N/A #VALUE! #VALUE! #VALUE! #VALUE! 6 Ashfield Road Project site to El Camino Real Ashfield Road El Camino Real to Maple Ave / Winchester Dr Maple Avenue Dinkelspiel Station Lane to El Camino Real Maple Avenue El Camino Real to Winchester Drive Watkins Avenue Middlefield Road to Dinkelspiel Station Lane 3, Watkins Avenue Dinkelspiel Station Lane to El Camino Real 2, Lloyden Drive El Camino Real to Fair Oaks Lane Dinkelspiel Station Lane Fair Oaks Lane to Project site 1, Dinkelspiel Station Lane Project site to Watkins Avenue El Camino Real Wilburn Avenue to Atherton Ave/Fair Oaks Ln 31, El Camino Real Atherton Ave/Fair Oaks Ln to Ashfield Road 30, El Camino Real Ashfield Road to Maple Avenue 30, El Camino Real Maple Avenue to Watkins Avenue 29,

34 Scenario: EXISTING NO PROJECT Project: Atherton Civic Center Roadway: Fair Oaks Lane Analyst: NJF Segment: McCormick Lane to Lloyden Drive Date: 08-Jan-15 ADT 5,600 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 57.8 Leq EVENING= 56.5 Leq NIGHT= 50.5 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 58.9 CNEL= 59.6 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL:

35 Scenario: EXISTING NO PROJECT Project: Atherton Civic Center Roadway: Fair Oaks Lane Analyst: NJF Segment: Lloyden Drive to Ashfield Road Date: 08-Jan-15 ADT 5,400 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 57.7 Leq EVENING= 56.4 Leq NIGHT= 50.4 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 58.8 CNEL= 59.4 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL:

36 Scenario: EXISTING NO PROJECT Project: Atherton Civic Center Roadway: Fair Oaks Lane Analyst: NJF Segment: Ashfield Road to El Camino Real Date: 08-Jan-15 ADT 4,800 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 57.2 Leq EVENING= 55.9 Leq NIGHT= 49.9 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 58.3 CNEL= 58.9 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL:

37 Scenario: EXISTING NO PROJECT Project: Atherton Civic Center Roadway: Atherton Avenue Analyst: NJF Segment: El Camino Real to Austin Avenue Date: 08-Jan-15 ADT 6,500 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 58.5 Leq EVENING= 57.2 Leq NIGHT= 51.2 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 59.6 CNEL= 60.2 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL:

38 Scenario: EXISTING NO PROJECT Project: Atherton Civic Center Roadway: Ashfield Road Analyst: NJF Segment: Fair Oaks Lane to Project site Date: 08-Jan-15 ADT N/A Vehicles per hour ####### ####### ####### #VALUE! #VALUE! #VALUE! ####### ####### ####### Flow ####### ####### ####### #VALUE! #VALUE! #VALUE! ####### ####### ####### LEQ ####### ####### ####### #VALUE! #VALUE! #VALUE! ####### ####### ####### VEHICULAR NOISE DAY= ####### Leq EVENING= #VALUE! Leq NIGHT= ####### Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= ###### CNEL= ###### ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: ###### ###### ###### CNEL: ###### ###### ######

39 Scenario: EXISTING NO PROJECT Project: Atherton Civic Center Roadway: Ashfield Road Analyst: NJF Segment: Project site to El Camino Real Date: 08-Jan-15 ADT 250 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 44.3 Leq EVENING= 43.0 Leq NIGHT= 37.0 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 45.4 CNEL= 46.1 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL: 1 3 6

40 Scenario: EXISTING NO PROJECT Project: Atherton Civic Center Roadway: Ashfield Road Analyst: NJF Segment: El Camino Real to Maple Ave / Winchester Dr Date: 08-Jan-15 ADT 90 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 39.9 Leq EVENING= 38.6 Leq NIGHT= 32.6 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 41.0 CNEL= 41.6 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL: 1 1 3

41 Scenario: EXISTING NO PROJECT Project: Atherton Civic Center Roadway: Maple Avenue Analyst: NJF Segment: Dinkelspiel Station Lane to El Camino Real Date: 08-Jan-15 ADT 220 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 43.8 Leq EVENING= 42.5 Leq NIGHT= 36.5 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 44.9 CNEL= 45.5 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL: 1 3 5

42 Scenario: EXISTING NO PROJECT Project: Atherton Civic Center Roadway: Maple Avenue Analyst: NJF Segment: El Camino Real to Winchester Drive Date: 08-Jan-15 ADT 100 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 40.4 Leq EVENING= 39.1 Leq NIGHT= 33.0 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 41.5 CNEL= 42.1 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL: 1 1 3

43 Scenario: EXISTING NO PROJECT Project: Atherton Civic Center Roadway: Watkins Avenue Analyst: NJF Segment: Middlefield Road to Dinkelspiel Station Lane Date: 08-Jan-15 ADT 3,000 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 55.1 Leq EVENING= 53.8 Leq NIGHT= 47.8 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 56.2 CNEL= 56.9 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL:

44 FHWA RD NOISE PREDICTION MODEL Scenario: EXISTING NO PROJECT Project: Atherton Civic Center Roadway: Watkins Avenue Analyst: NJF Segment: Dinkelspiel Station Lane to El Cami Date: 08-Jan-15 ADT 2,700 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 54.7 Leq EVENING= 53.4 Leq NIGHT= 47.4 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 55.8 CNEL= 56.4 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL:

45 FHWA RD NOISE PREDICTION MODEL Scenario: EXISTING NO PROJECT Project: Atherton Civic Center Roadway: Lloyden Drive Analyst: NJF Segment: El Camino Real to Fair Oaks Lane Date: 08-Jan-15 ADT 540 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 47.7 Leq EVENING= 46.4 Leq NIGHT= 40.4 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 48.8 CNEL= 49.4 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL:

46 FHWA RD NOISE PREDICTION MODEL Scenario: EXISTING NO PROJECT Project: Atherton Civic Center Roadway: Dinkelspiel Station Lane Analyst: NJF Segment: Fair Oaks Lane to Project site Date: 08-Jan-15 ADT 1,100 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 50.8 Leq EVENING= 49.5 Leq NIGHT= 43.5 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 51.9 CNEL= 52.5 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL:

47 FHWA RD NOISE PREDICTION MODEL Scenario: EXISTING NO PROJECT Project: Atherton Civic Center Roadway: Dinkelspiel Station Lane Analyst: NJF Segment: Project site to Watkins Avenue Date: 08-Jan-15 ADT 550 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 47.8 Leq EVENING= 46.5 Leq NIGHT= 40.4 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 48.9 CNEL= 49.5 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL:

48 FHWA RD NOISE PREDICTION MODEL Scenario: EXISTING NO PROJECT Project: Atherton Civic Center Roadway: El Camino Real Analyst: NJF Segment: Wilburn Avenue to Atherton Ave/FaDate: 08-Jan-15 ADT 31,300 SPEED (mph) 35 ROAD NEAR-FAR LN. DIST. 84 DAILY HOURLY Vehicles per hour Speed in MPH Reference levels (dba) Flow Distance LEQ VEHICULAR NOISE DAY= 72.6 Leq EVENING= 71.3 Leq NIGHT= 65.3 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 73.7 CNEL= 74.3 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL:

49 FHWA RD NOISE PREDICTION MODEL Scenario: EXISTING NO PROJECT Project: Atherton Civic Center Roadway: El Camino Real Analyst: NJF Segment: Atherton Ave/Fair Oaks Ln to AshfieDate: 08-Jan-15 ADT 30,700 SPEED (mph) 35 ROAD NEAR-FAR LN. DIST. 84 DAILY HOURLY Vehicles per hour Speed in MPH Reference levels (dba) Flow Distance LEQ VEHICULAR NOISE DAY= 72.5 Leq EVENING= 71.2 Leq NIGHT= 65.2 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 73.6 CNEL= 74.2 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL:

50 FHWA RD NOISE PREDICTION MODEL Scenario: EXISTING NO PROJECT Project: Atherton Civic Center Roadway: El Camino Real Analyst: NJF Segment: Ashfield Road to Maple Avenue Date: 08-Jan-15 ADT 30,600 SPEED (mph) 35 ROAD NEAR-FAR LN. DIST. 84 DAILY HOURLY Vehicles per hour Speed in MPH Reference levels (dba) Flow Distance LEQ VEHICULAR NOISE DAY= 72.5 Leq EVENING= 71.2 Leq NIGHT= 65.2 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 73.6 CNEL= 74.2 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL:

51 FHWA RD NOISE PREDICTION MODEL Scenario: EXISTING NO PROJECT Project: Atherton Civic Center Roadway: El Camino Real Analyst: NJF Segment: Maple Avenue to Watkins Avenue Date: 08-Jan-15 ADT 29,600 SPEED (mph) 35 ROAD NEAR-FAR LN. DIST. 84 DAILY HOURLY Vehicles per hour Speed in MPH Reference levels (dba) Flow Distance LEQ VEHICULAR NOISE DAY= 72.3 Leq EVENING= 71.0 Leq NIGHT= 65.0 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 73.4 CNEL= 74.1 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL:

52 Atherton Civic Center EXISTING PLUS PROJECT CONDITIONS NOISE CONTOURS RESULT SUMMARY TABLE DAILY TRAFIC NOISE LEVEL AT 50 FT. DISTACE TO NOISE CONTOUR (FT.) 70 dba CNEL 65 dba CNEL 60 dba CNEL # ROADWAY SEGMENT VOLUMES (dba CNEL) 1 Fair Oaks Lane McCormick Lane to Lloyden Drive 5, Fair Oaks Lane Lloyden Drive to Ashfield Road 5, Fair Oaks Lane Ashfield Road to El Camino Real 4, Atherton Avenue El Camino Real to Austin Avenue 6, Ashfield Road Fair Oaks Lane to Project site 1, Ashfield Road Project site to El Camino Real Ashfield Road El Camino Real to Maple Ave / Winchester Dr Maple Avenue Dinkelspiel Station Lane to El Camino Real Maple Avenue El Camino Real to Winchester Drive Watkins Avenue Middlefield Road to Dinkelspiel Station Lane 3, Watkins Avenue Dinkelspiel Station Lane to El Camino Real 2, Lloyden Drive El Camino Real to Fair Oaks Lane Dinkelspiel Station Lane Fair Oaks Lane to Project site N/A #VALUE! #VALUE! #VALUE! #VALUE! 14 Dinkelspiel Station Lane Project site to Watkins Avenue El Camino Real Wilburn Avenue to Atherton Ave/Fair Oaks Ln 31, El Camino Real Atherton Ave/Fair Oaks Ln to Ashfield Road 30, El Camino Real Ashfield Road to Maple Avenue 30, El Camino Real Maple Avenue to Watkins Avenue 29,

53 Scenario: EXISTING PLUS PROJECT Project: Atherton Civic Center Roadway: Fair Oaks Lane Analyst: NJF Segment: McCormick Lane to Lloyden Drive Date: 08-Jan-15 ADT 5,600 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 57.8 Leq EVENING= 56.5 Leq NIGHT= 50.5 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 58.9 CNEL= 59.6 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL:

54 Scenario: EXISTING PLUS PROJECT Project: Atherton Civic Center Roadway: Fair Oaks Lane Analyst: NJF Segment: Lloyden Drive to Ashfield Road Date: 08-Jan-15 ADT 5,800 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 58.0 Leq EVENING= 56.7 Leq NIGHT= 50.7 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 59.1 CNEL= 59.7 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL:

55 Scenario: EXISTING PLUS PROJECT Project: Atherton Civic Center Roadway: Fair Oaks Lane Analyst: NJF Segment: Ashfield Road to El Camino Real Date: 08-Jan-15 ADT 4,990 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 57.3 Leq EVENING= 56.0 Leq NIGHT= 50.0 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 58.4 CNEL= 59.1 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL:

56 Scenario: EXISTING PLUS PROJECT Project: Atherton Civic Center Roadway: Atherton Avenue Analyst: NJF Segment: El Camino Real to Austin Avenue Date: 08-Jan-15 ADT 6,600 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 58.6 Leq EVENING= 57.2 Leq NIGHT= 51.2 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 59.7 CNEL= 60.3 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL:

57 Scenario: EXISTING PLUS PROJECT Project: Atherton Civic Center Roadway: Ashfield Road Analyst: NJF Segment: Fair Oaks Lane to Project site Date: 08-Jan-15 ADT 1,100 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 50.8 Leq EVENING= 49.5 Leq NIGHT= 43.5 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 51.9 CNEL= 52.5 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL:

58 Scenario: EXISTING PLUS PROJECT Project: Atherton Civic Center Roadway: Ashfield Road Analyst: NJF Segment: Project site to El Camino Real Date: 08-Jan-15 ADT 240 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 44.2 Leq EVENING= 42.9 Leq NIGHT= 36.8 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 45.3 CNEL= 45.9 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL: 1 3 6

59 Scenario: EXISTING PLUS PROJECT Project: Atherton Civic Center Roadway: Ashfield Road Analyst: NJF Segment: El Camino Real to Maple Ave / Winchester Dr Date: 08-Jan-15 ADT 90 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 39.9 Leq EVENING= 38.6 Leq NIGHT= 32.6 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 41.0 CNEL= 41.6 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL: 1 1 3

60 Scenario: EXISTING PLUS PROJECT Project: Atherton Civic Center Roadway: Maple Avenue Analyst: NJF Segment: Dinkelspiel Station Lane to El Camino Real Date: 08-Jan-15 ADT 330 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 45.5 Leq EVENING= 44.2 Leq NIGHT= 38.2 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 46.6 CNEL= 47.3 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL: 2 3 7

61 Scenario: EXISTING PLUS PROJECT Project: Atherton Civic Center Roadway: Maple Avenue Analyst: NJF Segment: El Camino Real to Winchester Drive Date: 08-Jan-15 ADT 100 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 40.4 Leq EVENING= 39.1 Leq NIGHT= 33.0 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 41.5 CNEL= 42.1 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL: 1 1 3

62 Scenario: EXISTING PLUS PROJECT Project: Atherton Civic Center Roadway: Watkins Avenue Analyst: NJF Segment: Middlefield Road to Dinkelspiel Station Lane Date: 08-Jan-15 ADT 3,100 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 55.3 Leq EVENING= 54.0 Leq NIGHT= 48.0 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 56.4 CNEL= 57.0 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL:

63 FHWA RD NOISE PREDICTION MODEL Scenario: EXISTING PLUS PROJECT Project: Atherton Civic Center Roadway: Watkins Avenue Analyst: NJF Segment: Dinkelspiel Station Lane to El Cami Date: 08-Jan-15 ADT 2,700 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 54.7 Leq EVENING= 53.4 Leq NIGHT= 47.4 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 55.8 CNEL= 56.4 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL:

64 FHWA RD NOISE PREDICTION MODEL Scenario: EXISTING PLUS PROJECT Project: Atherton Civic Center Roadway: Lloyden Drive Analyst: NJF Segment: El Camino Real to Fair Oaks Lane Date: 08-Jan-15 ADT 540 Vehicles per hour Flow LEQ VEHICULAR NOISE DAY= 47.7 Leq EVENING= 46.4 Leq NIGHT= 40.4 Leq NOISE LEVELS AT 50 FEET FROM CENTERLINE (dba): Ldn= 48.8 CNEL= 49.4 ROAD CENTERLINE DISTANCE TO NOISE CONTOUR (FEET): Ldn: CNEL: