Runway Safety Margin Enhancement Project Ann Arbor Municipal Airport Matt Kulhanek Director-Facilities Management 1
Agenda Background Safety Issues being Addressed Environmental Assessment Study Airport Improvement Process Airport Economic Impact to the Community Q & A 2
Agenda Background Safety Issues being Addressed Environmental Assessment Study Airport Improvement Process Airport Economic Impact to the Community Q & A 3
Background Discussions began late 2002/2003 for the 2007 ALP Snow Removal Equipment (SRE)/Maintenance Building Box Hangars FBO Start-Up Business State Road Corridor Project Study 4
Background Most airport improvements paid with FAA (95%) & State (2.5%) airport improvement trust funding requires the improvement be shown on an approved airport layout plan (ALP) ARB had poor history with ALP s prior to 2007 Prior attempts failed due to airport opposition: 1960 s (8,000 runway) 1970 s (5,000 runway) 1990 s (5,000 runway) 2007 ALP approved to include State Road rerouting plan (curve in road) SRE building and box hangar improvements 5
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Background 2007 ALP 7
Background Prior to vote approving 2007 ALP, City Council asked does this ALP address all of the necessary security and safety needs in this post 9/11 environment? Former airport manager said no, it didn t adequately address: State Road separation (curve was impractical, avoided having the runway debate) Control tower line-of-site obstruction Unusual number of overruns (11 between 1998-2008, rest of MI one at KBTL) Council passed resolution adopting 2007 ALP and asked airport manager to return with a recommendation within 60 days 8
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Background Delays by MDOT contributed to having FAA review for approval recommended safety enhancements until late June 2008 Airport Advisory Committee (AAC) approved its recommendation at its August 2008 meeting. City Council approved the amended 2008 ALP including the safety enhancement without changing airport design classification (B-II) 13
Agenda Background Safety Issues being Addressed Environmental Assessment Study Airport Improvement Process Airport Economic Impact to the Community Q & A 14
Safety Issues being Addressed Separation & Clearance of State Road from Rwy 06/24 Control Tower Line-of-Site Unusually High Number of Runway Overruns 15
Safety Issues being Addressed Separation & Clearance of State Road from Rwy 06/24 Option #1: Do nothing at all and State Road may not be widened to accommodate State Road Corridor Project (to 4 lane boulevard). Option #2: Curve the State Road right-of-way to the east through floodplain and wetlands (opposed by Pittsfield Twp). Option #3: Shift runway southwest 150 (preferred by Washtenaw Co. Road Commission) 16
Safety Issues being Addressed Separation & Clearance of State Road from Rwy 06/24 Option #1 (do nothing) Reasons why AAC recommended Option #3 State Road & intersection at Ellsworth Road has out grown its original traffic volume design capacity, requires modernization Does not cure Part 77 obstacle clearance concern if road widened without separation from runway Part 77 obstacle clearance is 15 above road surface to bottom of obstacle clearance surface, currently 13.4 without shifting VASI, may require steeper glide slope (i.e., 3 to 3. 5 or up to 3.77 ) shift VASI to SW preserving 3 glide slope without replacing displaced runway would effective shorten runway by moving touch down point to SW Does not resolve control tower line-of-site obstruction (raise tower cab or build new taller tower) Risk management liability cost avoidance Do nothing is not an option 17
Safety Issues being Addressed Separation & Clearance of State Road from Rwy 06/24 18
Safety Issues being Addressed Separation & Clearance of State Road from Rwy 06/24 Option #2 (curve in road) Reasons why AAC recommended Option #3 Too costly to construct road through floodplain and wetlands Requires acquisition of private property Might not pass mandatory environmental assessment study to qualify for State and Federal funding Does not resolve control tower line-of-site obstruction (raise tower cab or build new taller tower) Does not resolve risk management liability cost avoidance 19
Safety Issues being Addressed Separation & Clearance of State Road from Rwy 06/24 20