PHASE 1 - PROJECT MILESTONES

Evaluation of Early Implementation Alternatives

A detailed aircraft noise comparison analysis was conducted for each of the 13 Early Implementation Alternatives to quantify changes in both cumulative and single-event levels. CAC reviewed both the individual measure and combined measure results and voted to recommend nine (9) of the 13 for implementation. The steps taken included:

• 13 Detailed Flight Procedures Developed and accepted by BOS/TAC on June 2006.
• Aircraft operations were modeled for each measure using accepted noise metrics and discussed at the November 8, 2006 BOS/TAC meeting. Documents used in the meeting included:
• Early Implementation Alternatives Summary (Flash) 7.01 mb
  (Macromedia Flash Plug-in Required. The Flash Player can be downloaded here.)
• IC Review of Phase 1 Noise Effects (pdf) 432 kb
• IC Community Effects Summary-Final Matrix (pdf) 48.6 kb
• IC Supplemental Community Effects Summary Matrix (pdf) 61.2 kb
• On December 5, 2006 a CAC meeting was held to discuss the alternatives and make official recommendations.
• Shift Alternative 9 to Phase 2 of the Boston Overflight Noise Study - DEFEATED
• The Chelsea representative moved to recommend Alternative 1/14/15 to Massport for implementation - PASSED
• A CAC meeting was held on January 17, 2007 to continue discussing recommendations to be made to Massport. Motions voted on included:
• To affirmatively recommend Alternatives 2, 3, 5, 6, and 7 together to Massport - PASSED
• To affirmatively recommend Alternative 8 to Massport - DEFEATED
• To affirmatively recommend Alternative 11 to Massport - PASSED
• To affirmatively recommend Alternative 13 to Massport- DEFEATED
• To reject Alternative 12a/b/c - PASSED
• CAC sent letter on February 16, 2007 to Massport (Mr. Flavio Leo) recommending the implementation of nine (9) alternatives (PDF 18 kb).

The following flash presentation depicts existing conditions and each Early Implementation Alternative (Macromedia Flash Plug-in Required. The Flash Player can be downloaded here.):



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