decision time
DESCRIPTION
Application of the FDOT Special Use Methodology on an Interstate 75 Project TRB Summer Meeting Williamsburg, VA July 11, 2006 Presented By: Win Lindeman & Mike Mulbarger Environmental Science Associates 1715 N. Westshore Blvd., Suite 780 Tampa, Florida 33607. Decision Time. - PowerPoint PPT PresentationTRANSCRIPT
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Application of the FDOT Special Use Methodology on an Interstate 75 Project
TRB Summer Meeting Williamsburg, VA
July 11, 2006
Presented By:
Win Lindeman & Mike Mulbarger Environmental Science Associates1715 N. Westshore Blvd., Suite 780
Tampa, Florida33607
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Decision Time
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Special Use Location Methodology
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Location Map
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PD&E Phase Noise Study Report
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Three Oaks Community Park
I-75
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Reasonableness Matrix
Item Criteria Input Units1 Length of proposed barrier Number in feet
2 Height of proposed barrier Number in feet
3 Multiply item 1 by item 2 Number in ft2
4 Average amount of time that a person stays at the site per visit
Number in hours
5 Average number of people that use this site per day that will receive at least 5 dBA benefit from abatement at this site
Number of people
6 Multiply item 4 by item 5 Number of person-hours
7 Divide item 3 by item 6 Number in ft2/person-hour
8 Multiply $35,000 by item 7 Amount in $
9 Does item 8 exceed the “abatement cost factor” of $711,382/person-hr/ ft2?
Yes/No
10 If item 9 is no, abatement is reasonable √
11 If item 9 is yes, abatement is not reasonable √
12 Estimated cost of the barrier (multiply item 3 by $25.00) Amount in $
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Sample of Park Usage Information
Three Oaks Field Usage January-December
*p.m. usage starts after 6:00pm
Field Usage for January
Sunday Monday Tuesday Wednesday ThursdayFrida
y SaturdayUsag
e
a.m usage 150 60 60 100 60 60 450 940
*p.m. usage 75 450 450 450 450 450 150 2475
Average Weekly Total= 3415
Average Monthly Total= 13660
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Receiver Array
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Proposed Barrier Location
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Recommended Noise Barrier
Barrier
Location
Barrier Length (feet)
Barrier Height (feet)
Barrier Stations
Average Noise
Reduction
Total Estimated
Cost
Three Oaks Community
Park
2,740 18 682+10 to
709+50
7.7 $1,233,000
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Reasonableness Matrix for Three Oaks Community Park Noise Barrier
Item Criteria Input Units1 Length of proposed barrier 2,740 ft
2 Height of proposed barrier
3 Multiply item 1 by item 2
4 Average amount of time that a person stays at the site per visit
5 Average number of people that use this site per day that will receive at least 5 dBA benefit from abatement at this site
6 Multiply item 4 by item 5
7 Divide item 3 by item 6
8 Multiply $35,000 by item 7
9 Does item 8 exceed the “abatement cost factor” of $711,382/person-hr/ ft2?
10 If item 9 is no, abatement is reasonable
11 If item 9 is yes, abatement is not reasonable
12 Estimated cost of the barrier (multiply item 3 by $25.00)
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Reasonableness Matrix for Three Oaks Community Park Noise Barrier
Item Criteria Input Units1 Length of proposed barrier 2,740 ft
2 Height of proposed barrier 18 ft
3 Multiply item 1 by item 2
4 Average amount of time that a person stays at the site per visit
5 Average number of people that use this site per day that will receive at least 5 dBA benefit from abatement at this site
6 Multiply item 4 by item 5
7 Divide item 3 by item 6
8 Multiply $35,000 by item 7
9 Does item 8 exceed the “abatement cost factor” of $711,382/person-hr/ ft2?
10 If item 9 is no, abatement is reasonable
11 If item 9 is yes, abatement is not reasonable
12 Estimated cost of the barrier (multiply item 3 by $25.00)
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Reasonableness Matrix for Three Oaks Community Park Noise Barrier
Item Criteria Input Units1 Length of proposed barrier 2,740 ft
2 Height of proposed barrier 18 ft
3 Multiply item 1 by item 2 49,320 ft2
4 Average amount of time that a person stays at the site per visit
5 Average number of people that use this site per day that will receive at least 5 dBA benefit from abatement at this site
6 Multiply item 4 by item 5
7 Divide item 3 by item 6
8 Multiply $35,000 by item 7
9 Does item 8 exceed the “abatement cost factor” of $711,382/person-hr/ ft2?
10 If item 9 is no, abatement is reasonable
11 If item 9 is yes, abatement is not reasonable
12 Estimated cost of the barrier (multiply item 3 by $25.00)
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Reasonableness Matrix for Three Oaks Community Park Noise Barrier
Item Criteria Input Units1 Length of proposed barrier 2,740 ft
2 Height of proposed barrier 18 ft
3 Multiply item 1 by item 2 49,320 ft2
4 Average amount of time that a person stays at the site per visit
2.5 hours
5 Average number of people that use this site per day that will receive at least 5 dBA benefit from abatement at this site
6 Multiply item 4 by item 5
7 Divide item 3 by item 6
8 Multiply $35,000 by item 7
9 Does item 8 exceed the “abatement cost factor” of $711,382/person-hr/ ft2?
10 If item 9 is no, abatement is reasonable
11 If item 9 is yes, abatement is not reasonable
12 Estimated cost of the barrier (multiply item 3 by $25.00)
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Reasonableness Matrix for Three Oaks Community Park Noise Barrier
Item Criteria Input Units1 Length of proposed barrier 2,740 ft
2 Height of proposed barrier 18 ft
3 Multiply item 1 by item 2 49,320 ft2
4 Average amount of time that a person stays at the site per visit
2.5 hours
5 Average number of people that use this site per day that will receive at least 5 dBA benefit from abatement at this site
1139 people
6 Multiply item 4 by item 5
7 Divide item 3 by item 6
8 Multiply $35,000 by item 7
9 Does item 8 exceed the “abatement cost factor” of $711,382/person-hr/ ft2?
10 If item 9 is no, abatement is reasonable
11 If item 9 is yes, abatement is not reasonable
12 Estimated cost of the barrier (multiply item 3 by $25.00)
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Reasonableness Matrix for Three Oaks Community Park Noise Barrier
Item Criteria Input Units1 Length of proposed barrier 2,740 ft
2 Height of proposed barrier 18 ft
3 Multiply item 1 by item 2 49,320 ft2
4 Average amount of time that a person stays at the site per visit
2.5 hours
5 Average number of people that use this site per day that will receive at least 5 dBA benefit from abatement at this site
1139 people
6 Multiply item 4 by item 5 2897.5 person-hr
7 Divide item 3 by item 6
8 Multiply $35,000 by item 7
9 Does item 8 exceed the “abatement cost factor” of $711,382/person-hr/ ft2?
10 If item 9 is no, abatement is reasonable
11 If item 9 is yes, abatement is not reasonable
12 Estimated cost of the barrier (multiply item 3 by $25.00)
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Reasonableness Matrix for Three Oaks Community Park Noise Barrier
Item Criteria Input Units1 Length of proposed barrier 2,740 ft
2 Height of proposed barrier 18 ft
3 Multiply item 1 by item 2 49,320 ft2
4 Average amount of time that a person stays at the site per visit
2.5 hours
5 Average number of people that use this site per day that will receive at least 5 dBA benefit from abatement at this site
1139 people
6 Multiply item 4 by item 5 2897.5 person-hr
7 Divide item 3 by item 6 17.0 ft2/person-hr
8 Multiply $35,000 by item 7
9 Does item 8 exceed the “abatement cost factor” of $711,382/person-hr/ ft2?
10 If item 9 is no, abatement is reasonable
11 If item 9 is yes, abatement is not reasonable
12 Estimated cost of the barrier (multiply item 3 by $25.00)
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Reasonableness Matrix for Three Oaks Community Park Noise Barrier
Item Criteria Input Units1 Length of proposed barrier 2,740 ft
2 Height of proposed barrier 18 ft
3 Multiply item 1 by item 2 49,320 ft2
4 Average amount of time that a person stays at the site per visit
2.5 hours
5 Average number of people that use this site per day that will receive at least 5 dBA benefit from abatement at this site
1139 people
6 Multiply item 4 by item 5 2897.5 person-hr
7 Divide item 3 by item 6 17.0 ft2/person-hr
8 Multiply $35,000 by item 7 $595,000
9 Does item 8 exceed the “abatement cost factor” of $711,382/person-hr/ ft2?
10 If item 9 is no, abatement is reasonable
11 If item 9 is yes, abatement is not reasonable
12 Estimated cost of the barrier (multiply item 3 by $25.00)
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Reasonableness Matrix for Three Oaks Community Park Noise Barrier
Item Criteria Input Units1 Length of proposed barrier 2,740 ft
2 Height of proposed barrier 18 ft
3 Multiply item 1 by item 2 49,320 ft2
4 Average amount of time that a person stays at the site per visit
2.5 hours
5 Average number of people that use this site per day that will receive at least 5 dBA benefit from abatement at this site
1139 people
6 Multiply item 4 by item 5 2897.5 person-hr
7 Divide item 3 by item 6 17.0 ft2/person-hr
8 Multiply $35,000 by item 7 $595,000
9 Does item 8 exceed the “abatement cost factor” of $711,382/person-hr/ ft2?
No
10 If item 9 is no, abatement is reasonable
11 If item 9 is yes, abatement is not reasonable
12 Estimated cost of the barrier (multiply item 3 by $25.00)
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Reasonableness Matrix for Three Oaks Community Park Noise Barrier
Item Criteria Input Units1 Length of proposed barrier 2,740 ft
2 Height of proposed barrier
3 Multiply item 1 by item 2 49,320 ft2
4 Average amount of time that a person stays at the site per visit
2.5 hours
5 Average number of people that use this site per day that will receive at least 5 dBA benefit from abatement at this site
1139 people
6 Multiply item 4 by item 5 2897.5 person-hr
7 Divide item 3 by item 6 17.0 ft2/person-hr
8 Multiply $35,000 by item 7 $595,000
9 Does item 8 exceed the “abatement cost factor” of $711,382/person-hr/ ft2?
No
10 If item 9 is no, abatement is reasonable √
11 If item 9 is yes, abatement is not reasonable
12 Estimated cost of the barrier (multiply item 3 by $25.00)
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Reasonableness Matrix for Three Oaks Community Park Noise Barrier
Item Criteria Input Units1 Length of proposed barrier 2,740 ft
2 Height of proposed barrier
3 Multiply item 1 by item 2 49,320 ft2
4 Average amount of time that a person stays at the site per visit
2.5 hours
5 Average number of people that use this site per day that will receive at least 5 dBA benefit from abatement at this site
1139 people
6 Multiply item 4 by item 5 2897.5 person-hr
7 Divide item 3 by item 6 17.0 ft2/person-hr
8 Multiply $35,000 by item 7 $595,000
9 Does item 8 exceed the “abatement cost factor” of $711,382/person-hr/ ft2?
No
10 If item 9 is no, abatement is reasonable √
11 If item 9 is yes, abatement is not reasonable N/A
12 Estimated cost of the barrier (multiply item 3 by $25.00)
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Reasonableness Matrix for Three Oaks Community Park Noise Barrier
Item Criteria Input Units1 Length of proposed barrier 2,740 ft
2 Height of proposed barrier
3 Multiply item 1 by item 2 49,320 ft2
4 Average amount of time that a person stays at the site per visit
2.5 hours
5 Average number of people that use this site per day that will receive at least 5 dBA benefit from abatement at this site
1139 people
6 Multiply item 4 by item 5 2897.5 person-hr
7 Divide item 3 by item 6 17.0 ft2/person-hr
8 Multiply $35,000 by item 7 $595,000
9 Does item 8 exceed the “abatement cost factor” of $711,382/person-hr/ ft2?
No
10 If item 9 is no, abatement is reasonable √
11 If item 9 is yes, abatement is not reasonable N/A
12 Estimated cost of the barrier (multiply item 3 by $25.00) $1,233,000
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Public Involvement Steps with Lee County
• Obtain Park Usage Information
• Met with Park and County Officials
• Solicited Input on Color, Texture and Landscaping
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Public Involvement Results
• The barrier was favored by Lee County
• The color selected was Dark Beige
• The texture selected was Ashlar Stone with smooth horizontal band and smooth posts
• Landscaping was encouraged, to include Creeping Fig
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Barrier Aesthetics Selected
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Conclusions
• A wide array of receiver points are required
• Single-use facilities rarely qualify for abatement
• Usage data can be difficult to obtain
• The methodology is relatively simple to apply
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Any Questions?
• When’s the break?• When’s lunch??• Are you done yet???