Review of the Noise Compatibility Program Presentation to the Santa Clara County Board of Supervisors October 29, 2002 Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

Presentation Topics: Required Noise Metrics The Part 150 Process Noise Exposure Map Noise Compatibility Program FAA Approval Process Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study The Decibel Scale

Required noise metrics: FAR Part 150 requires the use of the Day- Night Average Sound Level (DNL) The Community Noise Equivalent Level (CNEL) is the State of California standard for assessing aircraft noise impacts CNEL is more restrictive than DNL and is approved for use in California Part 150s Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study Community Noise Equivalent Level, CNEL A way to describe the noise dose for a 24-hour period Accounts for noise event “noisiness” (SEL) Accounts for number of noise events Provides an additional weighting factor for evening (3X) and nighttime (10X) operations California State and Federal Standard Correlates well with community annoyance

Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study CNEL is used for land compatibility planning Under FAR Part 150: “Table 1 Land Use Compatibility with Yearly Day-Night Average Sound Levels,” 65 dB CNEL is considered incompatible with the following uses: residences and schools Hospitals, nursing homes, churches, auditoriums, and concert hall structures in these areas would have to reduce noise by 25 decibels to be compatible Industrial, commercial, open space, parks, etc. are compatible with 65 dB CNEL and above

Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study Qualitative descriptions of non-aircraft noise environments: Qualitative CNEL, dB Description ~ 46 – 51Quiet Suburban ~ 52 – 57Suburban ~ 58 – 63Urban ~ 64 – 69Noisy Urban ~ 70 – 75Very Noise Urban ~ 76 – 81Downtown City Noise

Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study Determining Noise Exposure with Measurements Measurements accurately tell us: -The sound levels at a specific site -For a specific time period Measurements are an historical record Measurements are not predictive, but can show historical trends

Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study Determining Noise Exposure with Modeling Modeling can accurately tell us sound levels: -Over a broad geographic area as well as at specific sites -For a specific time period Modeling can produce an historical record Modeling can be predictive by showing expected trends

Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study FAA Integrated Noise Model (INM) inputs: Aircraft Fleet Mix Representative Flight Tracks Runway and Helipad Use 85% Runway 31L/R, 15% Runway 13L/R Number of Annual Operations 647 Annual average day operations 83% day, 14% evening, 3% night

Draft Noise Compatibility Program NEM-2002 CNEL Contours

Draft Noise Compatibility Program NEM-2007 CNEL Contours

Presentation Topics: Required Noise Metrics The FAR Part 150 Process Noise Exposure Map Noise Compatibility Program FAA Approval Process Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

The RHV Part 150 consists of two volumes: The Noise Exposure Map (NEM) Describes the airport layout and operation, aircraft- related noise exposure, land uses in the airport environs, and the resulting incompatibilities The NEM was submitted to the FAA for approval on July 12, 2002 The Noise Compatibility Program (NCP) List of actions to be undertaken to minimize noise/land use incompatibilities Five public meetings were held to solicit input Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

For the NCP, we reviewed over 50 potential noise abatement and noise mitigation measures: Suggested by the community, pilots, airport staff, and consulting team Emphasis on reducing people exposed to 65 dB CNEL -people in areas below 65 dB CNEL benefit as well Screened against Part 150 requirements Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

FAR Part 150 requirements for the NCP: Reduces existing non-compatible uses and prevents or reduces the establishment of additional non-compatible uses Does not impose an undue burden on interstate and foreign commerce Is not unjustly discriminatory Does not degrade safety or adversely affect the safe and efficient use of airspace Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

Draft Noise Compatibility Program Development of the NCP FAR Part 150 requirements for the NCP (cont.): To the extent practicable, meets both local needs and needs of the national air transportation system, considering tradeoffs between economic benefits derived from the airport and the noise impact Can be implemented in a manner consistent with all the powers and duties of the Administrator of FAA Provides for revision of the program

Of the over 50 measures reviewed, 33 were carried forward for submission to FAA: 13 Noise abatement procedures 9 Land use measures 11 Administrative measures Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

Noise Abatement Measures: -Set preferential runway use – arrivals on Runway 31L and departures on Runway 31R -Encourage use of minimum power settings on departure -Encourage standard glide scope arrival procedures to minimize power on arrival Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

Noise Abatement Measures (cont.): -Revise flight track for aircraft departing Runway 31R -Voluntary limitation on aircraft departures to specified times – (7 am to 10 pm) -Voluntary limitation on aircraft Touch-and-Go operations to specified days and times –Mon. – Fri. (9 am to 7 pm) –Sat. (10 am to 5 pm) –Sun. (12 pm to 5 pm) Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

Noise Abatement Measures (cont.): -Prohibit intersection departures -Restrict jet aircraft operations to Stage 3 -Prohibit formation arrivals and departures -Prohibit simulated emergencies Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

Noise Abatement Measures (cont.): -Prohibit low-level-fly-bys except for emergency requirements -Create new engine run-up area for twin- engine aircraft -Encourage pilots to modify aircraft to decrease noise emissions –Noise Silencers –Wing Vortex Generators –Propeller Swap-Out Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

NEM-2007 CNEL Contours Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

Abated 2007 CNEL Contours Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

Overall Benefits of the Proposed Noise Compatibility Program: 38% reduction in affected population within the dB Noise Contours Library now lies outside of 65 dB CNEL contour Schools now lie outside of 60 dB CNEL contour Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

Land Use Measures: -Fair Disclosure Policy: enhance ability to make informed decision (AB 2776) -Guaranteed Purchase: provide opportunities for relocation –65 dB CNEL SF (7), Mobile Homes (15) –60 dB CNEL Mobile Homes (64) -General Planning: provide policy input for the City of San Jose 2020 General Plan to incorporate recommendations Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

Land Use Measures (cont.): -Soundproofing Existing Development: –within the 2002 CNEL 65 dB and greater contours »7 dwellings –within the 2002 CNEL dB contour interval »529 dwellings »upon completion of noise insulation for residences in 65 dB and greater contours »contingent upon the availability of federal funds Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

Land Use Measures (cont.): -Sound Buffers/Barriers: provide noise level reduction for residential areas adjacent to RHV -Planning Commission Review: provide policy input for proposed development within the 2002 CNEL 60 dB and greater contours -Airport Noise Impact Boundary: monitor new land use proposals and ensure the CLUP is enforced -Public Land Development Criteria: provide policy input for development of public uses Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

Continuing Program Measures: -Encourage pilots to “Fly Friendly” -Encourage flight training schools to train pilots to “Fly Friendly” -Continually publicize RHV complaint hotline -Install noise monitors in the RHV environs -Install a radar collection system to match aircraft noise events to radar tracks Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

Continuing Program Measures (cont.): -Establish an airport/airport user/community noise committee to discuss issues on a quarterly basis -Designate a person at RHV to respond to noise complaints and investigate noise exceedances -Update and distribute the pilot handout with FAA approved noise abatement measures Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

Continuing Program Measures (cont.): -Revise the noise abatement signs to reflect the FAA approved noise abatement measures -Maintain information about RHV’s noise abatement program on the County’s website -Update the RHV Part 150 NEM and NCP within five years of FAA approval Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

Presentation Topics: Required Noise Metrics The Part 150 Process Noise Exposure Map Noise Compatibility Program FAA Approval Process Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

FAA Approval Process: Board of Supervisors considers NCP County submits NCP to FAA for approval FAA must review NCP within 180 days FAA issues a record of decision approve or disapprove recommended measures on a line-item basis Implementation of approved NCP measures Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study

Thank you! Reid-Hillview FAR Part 150 Noise and Land Use Compatibility Mitigation Study Reid-Hillview Airport FAR Part 150 Noise and Land Use Compatibility Study