update on results of long- term traffic noise measurements for pavement overlay projects james a....
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![Page 1: Update on Results of Long- term Traffic Noise Measurements for Pavement Overlay Projects James A. Reyff Illingworth & Rodkin, Inc. 2006 Summer Meeting](https://reader035.vdocument.in/reader035/viewer/2022062421/56649e395503460f94b2b72d/html5/thumbnails/1.jpg)
Update on Results of Long-term Traffic Noise
Measurements for Pavement Overlay Projects
James A. Reyff
Illingworth & Rodkin, Inc.
2006 Summer Meeting TRB ACD40
Williamsburg, VA
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Study Results Summarized
• I-80 Davis OGAC – 8 years
• State Route 138, Los Angeles County –
3+ years
• ADOT Pilot Studies – 2+ years
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I-80 Pavement Project
Location: I-80 just east of Davis and west of Sacramento, CA
Traffic: 1998 - 120,000 ADT (almost 10% trucks)2004 - 135,000 ADT
• Existing - Aged AC surfacing• DGAC (60mm) applied in June 1998• OGAC (25 mm) applied in July 1998
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I-80 Environment
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Existing AC Pavement
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6 Year Old OGAC
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I-80 Davis 8yr Findings
65
70
75
80
85
Measurement Condition
No
ise L
evel (d
BA
)
Meas WB Leq TNM Modeled
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I-80 Davis 7yr Findings
Seasonal Effect
65
70
75
80
Age of Pavement
Ave
rag
e M
easu
red
No
ise
Lev
el,
(dB
A)
Summer 78.6 72.8 73.3 73.7 73.3 73.7 74.6 74.8 75.1
Winter 74.2 73.9 74 74.6 75.1 75.1 75.7
Old AC
New 0.5yr 1 yr 1.5yr 2 yr 2.5yr 3 yr 3.5yr 4 yr 4.5yr 5 yr 5.5yr 6 yr 6.5yr 7 yr
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I-80 Davis 8yr FindingsCalculated Reduction from Baseline
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Age of Pavement
De
cre
as
e in
No
ise
Le
ve
l fr
om
Ba
se
lin
e C
on
dit
ion
, (d
BA
)
WB Reference 78.6 6.1 6.4 6.0 5.9 5.9 5.9 4.5 5.1 4.3 4.7
New OGAC
1 Mo. Aug
1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 7 Year 8 Year
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I-80 Davis 8yr FindingsTire/Pavement Sound Intensity
96
98
100
102
104
106
108
Sep 02 Apr 03 Jun 04 Dec 04 Apr 05 Jun 05 Dec 05 Apr 06 Jun 06
So
un
d In
ten
sity
Lev
el, d
BA
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Frequency Spectra – 20m
7 Year Baseline
45
50
55
60
65
70
75
1/3rd Octave Center Frequency (Hz)
Noi
se L
evel
(d
BA
)
Baseline
1-Month
1-Year
2-Year
3-Year
4-Year
5-Year
6-Year
7-Year
8-Year
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35
40
45
50
55
60
65
No
ise L
ev
el
(d
B)
35
40
45
50
55
60
65
1/3rd Octave Center Frequency (Hz)
No
ise L
ev
el
(d
B)
Baseline 1-month 1 Year 2 Year 3 Year 5 Year 6 Year 7 Year 8 Year
Frequency Spectra – 145m
8 Year
BaselineDOWNWIND
UPWIND8 Year Baseline
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LA 138 Pavement Research• Research Site est. 2002• Two Measurement Techniques
– Statistical Passby– Onboard Tire/Pavement Sound
Intensity
• 5 Pavements types– DGAC– Thick OGAC (75mm)– Thin OGAC (30mm)– RAC– BWC
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LA 138 Results
• Initial results documented by Volpe and Caltrans (Illingworth & Rodkin)
• Initial levels up to 4 dBA lower than DGAC with Thick OGAC and RAC quietest
• Regular testing of Tire/pavement sound intensity – spring and fall
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LA 138 Results
0
1
2
3
4
5
6
7
8
OGAC - 75mm OGAC - 30mm RAC BWC
Red
uct
ion
in
No
ise
Lev
el,
dB
re
DG
AC
Passby at 25 ftPassby at 50 ftTire Intensity
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LA 138 Results
SI Level – Eastbound SR 138
94
95
96
97
98
99
100
101
102
103
DGAC OGAC (75mm) OGAC (30mm) RAC BWC
Ove
rall
So
un
d In
ten
sity
Lev
el, d
BA
94
95
96
97
98
99
100
101
102
103
DGAC OGAC (75mm) OGAC (30mm) RAC BWC
Oct-02 Mar-03
Jul-03 Oct-03
Apr-04 Jan-05
Apr-05 Jun-05
Oct-05
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Results of the Arizona Quiet Pavement Program – Sites 3D and 3E
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Site 3D – AZ Route 202
Random Transverse Tined PCC
ARFC
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250ft x 5ft50ft x 12ft & 5ft
100ft x 5ft
Site 3D Measurements
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Site 3D Results – Leq
55
60
65
70
75
80
85
90
10:0
0
10:3
0
11:0
0
11:3
0
7:25
7:55
8:25
8:55
9:05
9:35
10:0
5
10:3
5
9:00
9:30
10:0
0
10:3
0
Time of Day
So
un
d P
ress
ure
Lev
el, d
BA
50ft/12ft
50ft/5ft
100ft/5ft
250ft/5ft
Oct. 16, 2004 Oct. 17, 2004Oct. 05, 2003
Post Overlay
Oct. 06, 2003
Pre Overlay
Downwind
Downwind Downwind
Downwind
AM Rush Hour
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3D Results – Normalized for Traffic
Position
Measured Modeled
ChangePre Post Pre Post
50 ft/12ft 84.3 70.9 75.1 74.1 -12.4
50ft / 5ft 83.2 70.9 75.2 74.2 -11.3
100ft / 5ft 76.8 65.6 72.8 71.8 -10.1
250ft / 5ft 68.9 59.7 68.0 66.9 -8.1
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3D Results – Leq Data
60
65
70
75
80
85
90
10:0
0
11:2
0
7:40
8:45
10:0
5
9:25
9:30
10:5
0
9:55
9:00
10:2
0
9:40
9:00
10:2
0
9:40
Time of Day
Sou
nd P
ress
ure
Leve
l, dB
A
50ft/12ft 50ft/5ft 100ft/5ft 250ft/5ft
October 2004 March 2006
April 2004
Post Overlay
October 2005
Pre Overlay
March 2005
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Site 3E – AZ Route 101
Uniform Transverse Tined PCC
ARFC
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Site 3E – Measurements
100ft x 5ft
50ft x 12ft & 5ft
100ft x 5ft
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Site 3E Results – Leq
60
65
70
75
80
85
90
9:00
9:30
10:0
0
10:3
0
9:25
9:55
10:2
5
10:5
5
9:20
9:50
10:2
0
10:5
0
9:30
10:0
0
10:3
0
11:0
0
Time of Day
So
un
d P
ress
ure
Lev
el, d
BA
50ft/12ft
50ft/5ft
100ft/5ft
Oct. 19, 2004 Oct. 20, 2004April 06, 2004
Post Overlay
April 07, 2004
Pre Overlay
Downwind Downwind DownwindDownwind
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3E Results – Normalized for Traffic
Position
Measured Modeled
ChangePre Post Pre Post
50 ft/12ft 84.2 74.9 80.2 79.8 -9.0
50ft / 5ft 81.6 73.2 79.9 79.8 -8.3
100ft / 5ft 78.6 69.8 76.9 76.8 -8.7
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3E Results – Leq Data
60
65
70
75
80
85
90
9:00
9:20
9:40
10:0
0
10:2
0
10:4
0
9:00
9:20
9:40
10:0
0
10:2
0
10:4
0
9:00
9:20
9:40
10:0
0
10:2
0
10:4
0
9:15
9:35
9:55
10:1
5
10:3
5
10:5
5
9:15
9:35
9:55
10:1
5
10:3
5
10:5
5
9:00
9:20
9:40
10:0
0
10:2
0
10:4
0
9:00
9:20
9:40
10:0
0
10:2
0
10:4
0
9:00
9:20
9:40
10:0
0
10:2
0
10:4
0
Time of Day
So
un
d P
ress
ure
Lev
el,
dB
A
50ft/8.7ft
50ft/5ft
100ft/5ft
October 2004 March 2006
April 2004
Post Overlay
October 2005
Pre Overlay
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Sound Level vs. DistanceMeasured PCC and ARFC
55
60
65
70
75
80
85
10 100
Distance from Near Travel Lane (meters)
Sou
nd P
ress
ure
Leve
l, dB
A
Measured ARFC Measured PCC
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Sound Level vs. DistanceMeasured and Modeled
55
60
65
70
75
80
85
10 100
Distance from Near Travel Lane (meters)
Sou
nd P
ress
ure
Leve
l, dB
A
Measured ARFC Modeled (Hard Ground) Modeled (Field Grass) Measured PCC
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250ft x 5ft50ft x 12ft & 5ft
100ft x 5ft
Site 3D Measurements
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Equivalent Noise Barrier Performance
Site at 100 ft
Measured Noise
ReductionNoise Barrier
Height
Site 3D 10 dBA 3.6m (12 ft)
Site 3E 9 dBA 3.0m (10 ft)
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I-280 San Mateo
• Existing PCC surface
• PCC and Rubberized Open Grade
• Onboard Tire/Pavement Sound Intensity
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Initial Results for I-280
0
1
2
3
4
5
6
7
Reduction by OGRA Reduction by TexturedGrinding PCC
Reduction by RegularGrinding PCC
Re
du
cti
on
in
So
un
d I
nte
nsi
ty L
ev
el,
dB
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Results for I-280 after 3 yrs
92
94
96
98
100
102
104
106
SB RAC(0) SB PCC SB PCC NB PCC NB PCC NB RAC(0)
So
un
d In
ten
sit
y L
ev
el,
dB
A
Existing PCC
2002
2005
RAC (O)