# Presentation: 330213

## Gary Stowell
Noise Abatement Manager
San Jose International Airport

- Noise Abatement Manager
- San Jose International Airport

- The Next Step - An Airport Perspective

## Where to go from here?

-     A perspective on the technology needed to address the impact of aviation on the environment

## Ultimate Goals

- Eliminate the need for restrictions on airports, airspace, and aircraft operations
- Establish and maintain community acceptance for airport operations, and growth of the air transportation system

**Notes:**
Imagine that.  No noise restrictions.  No special operational procedures.  No mitigation programs.  A community that enjoys the airport.  This would be a WIN, WIN, WIN situation.  The Airport’s win, the operators win, and most importantly, the community wins! 

## A Proposed Strategy

-     How can we increase capacity and achieve a “Net Environmental Gain?”

**Notes:**
At the February 1999 International Noise Symposium - SFO Director John Martin stated that it should be every airport’s goal to achieve a “Net Environmental Gain,” when establishing expansion programs.

## How do we get there from here?ECoA Workshops Focus

- Workshop One Q3 - Must the growth of aviation lead to increased environmental impacts?
- What can we do?

**Notes:**
Workshop One posed four general questions.  Of most significance is question three, which leads to the question:
“What can we do?” 

## Back to Basics:

- Source
- Path
- Receiver

## Source:

- Quieter technology
- Quiet and efficient operating procedures (vertical?)
- Longer distance capabilities

**Notes:**
Develop quieter technology aircraft.
Develop quiet and efficient operating procedures.
Develop aircraft with longer distance capabilities.

## Path:

- Better understanding of weather influences on noise propagation
- Active noise cancellation
- Variable frequency noise cancellation

**Notes:**
How can we use the path sound takes to lessen its impact?
Develop a better understanding of weather influences.
Continue to develop active noise cancellation.
Continue to develop variable frequency noise cancellation.

## Receiver:

- Improved land use compatibility
- Updated guidelines
- Updated policies that local jurisdictions can adopt

**Notes:**
We need to encourage improved land use compatibility, and update guidelines and policies that local jurisdictions can adopt.

## Additional Goals

- Provide for growth - intelligent land use decisions
- Avoid litigation
- Gain local support

**Notes:**
Provide for growth by making intelligent land use decisions.  We need to discourage frivolous lawsuits through education.  We also need to gain local support for our airports and air traffic system.

## How Can NASA Help?

- Technology
- Accurate prediction
- Technical support for regulations
- Improved airport infrastructure

**Notes:**
Particularly, there is room for NASA to improve noise modeling and more accurately define actual aircraft noise impacts.  Additionally, the CNS/ATM, CTAS, and SDTF (Surface Development Test Facility) projects can (and will) help to reduce both noise and emission impacts.

Our airports are the conduit through which the flow of air traffic passes.  NASA can be invaluable in replacing our existing infrastructure with one that will accommodate the aircraft technology of the future.

## Obstacles

- Case law
- Possible damages
- Funding
- Regulatory environment

**Notes:**
We must strike a balance between accommodating demand, and environmental impacts.  We need to create “informed decision makers.”  We need stakeholder buy-in.

## How do we get the best “Bang for the Buck” with existing technology

- Identify existing technologies
- Promote their usage
- Create incentives
- Remove roadblocks

**Notes:**
All stakeholders share a responsibility to promote the use of existing noise abatement technologies, create incentives, and remove roadblocks.

## How can we maximize the benefit of existing technology?

- Improved aircraft technology
- Improved operational procedures and ATM tools
- Improve existing tools, i.e., monitoring systems and analysis software

## With NASA’s help we can generate a:

- WIN - for airports
- WIN - for operators
- and
- WIN - for the community