Quiet Pavement ASPHALT THE QUIET PAVEMENT www Asphalt
![Quiet Pavement ASPHALT: THE QUIET PAVEMENT www. Asphalt. Alliance. com Quiet Pavement ASPHALT: THE QUIET PAVEMENT www. Asphalt. Alliance. com](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-1.jpg)
![Quiet Pavement Asphalt Pavements are Quiet Quiet Pavement Asphalt Pavements are Quiet](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-2.jpg)
![Quiet Pavement “Pavement/tire noise has been studiedfor well over 30 years and several large Quiet Pavement “Pavement/tire noise has been studiedfor well over 30 years and several large](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-3.jpg)
![Quiet Pavement • Vehicle-generated noise comes from: – engine, – exhaust system, – aerodynamic Quiet Pavement • Vehicle-generated noise comes from: – engine, – exhaust system, – aerodynamic](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-4.jpg)
![Quiet Pavement FHWA - Noise Abatement Criteria 67 d. B(A) “this is not an Quiet Pavement FHWA - Noise Abatement Criteria 67 d. B(A) “this is not an](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-5.jpg)
![Pain Threshold Conversation Hearing Threshold Quiet Pavement The Decibel Scale Discomfort Pain Threshold Conversation Hearing Threshold Quiet Pavement The Decibel Scale Discomfort](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-6.jpg)
![Quiet Pavement The Decibel Scale Chain Saw Train Conversation Increasing the decibel level by Quiet Pavement The Decibel Scale Chain Saw Train Conversation Increasing the decibel level by](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-7.jpg)
![Quiet Pavement What Can Be Done ? – Erect Noise Walls or Plant Trees/Shrubs Quiet Pavement What Can Be Done ? – Erect Noise Walls or Plant Trees/Shrubs](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-8.jpg)
![Quiet Pavement Noise Walls Effective only for those in line-of-sight. Do not reduce noise Quiet Pavement Noise Walls Effective only for those in line-of-sight. Do not reduce noise](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-9.jpg)
![Quiet Pavement Noise Walls • Effectiveness must justify expense. • Cases: – I-40, Knoxville: Quiet Pavement Noise Walls • Effectiveness must justify expense. • Cases: – I-40, Knoxville:](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-10.jpg)
![Quiet Pavement What Can Be Done ? – Erect Noise Walls or Plant Trees/Shrubs Quiet Pavement What Can Be Done ? – Erect Noise Walls or Plant Trees/Shrubs](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-11.jpg)
![Quiet Pavement Surface Texture Conclusions, “In general, when dense-graded asphalt and PCC pavements are Quiet Pavement Surface Texture Conclusions, “In general, when dense-graded asphalt and PCC pavements are](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-12.jpg)
![Quiet Pavement The Decibel Scale 67 d. B(A) 50 ft Quiet Pavement The Decibel Scale 67 d. B(A) 50 ft](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-13.jpg)
![Quiet Pavement A reduction of 3 d. B(A) is like doubling the distance from Quiet Pavement A reduction of 3 d. B(A) is like doubling the distance from](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-14.jpg)
![Quiet Pavement Conclusions: “In general, when dense -graded asphalt and PCC pavements are compared, Quiet Pavement Conclusions: “In general, when dense -graded asphalt and PCC pavements are compared,](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-15.jpg)
![Quiet Pavement Conclusions: “Open-graded asphalt shows the greatest potential for noise reduction for passby Quiet Pavement Conclusions: “Open-graded asphalt shows the greatest potential for noise reduction for passby](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-16.jpg)
![Quiet Pavement OGFCs Reduce Noise and Improve Visibility Quiet Pavement OGFCs Reduce Noise and Improve Visibility](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-17.jpg)
![Quiet Pavement Noise Reduction Open vs Dense Graded Mixes Source: NCHRP 284 Quiet Pavement Noise Reduction Open vs Dense Graded Mixes Source: NCHRP 284](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-18.jpg)
![Quiet Pavement What Can Be Done? • DOTs indicate a strong need for pavement Quiet Pavement What Can Be Done? • DOTs indicate a strong need for pavement](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-19.jpg)
![Quiet Pavement Effect of Pavement Surface • OGFC is the quietest surface type. (Wayson, Quiet Pavement Effect of Pavement Surface • OGFC is the quietest surface type. (Wayson,](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-20.jpg)
![Quiet Pavement Noise Makes News! Families Near I-275 is lobbying the Michigan DOT for Quiet Pavement Noise Makes News! Families Near I-275 is lobbying the Michigan DOT for](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-21.jpg)
![Quiet Pavement Summary • Highway noise is important to the public. • Small changes Quiet Pavement Summary • Highway noise is important to the public. • Small changes](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-22.jpg)
![Quiet Pavement Summary • Noise walls can work, but: – They are expensive. – Quiet Pavement Summary • Noise walls can work, but: – They are expensive. –](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-23.jpg)
![Quiet Pavement Summary • Asphalt pavements for noise reduction in order of effectiveness: – Quiet Pavement Summary • Asphalt pavements for noise reduction in order of effectiveness: –](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-24.jpg)
- Slides: 24
![Quiet Pavement ASPHALT THE QUIET PAVEMENT www Asphalt Alliance com Quiet Pavement ASPHALT: THE QUIET PAVEMENT www. Asphalt. Alliance. com](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-1.jpg)
Quiet Pavement ASPHALT: THE QUIET PAVEMENT www. Asphalt. Alliance. com
![Quiet Pavement Asphalt Pavements are Quiet Quiet Pavement Asphalt Pavements are Quiet](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-2.jpg)
Quiet Pavement Asphalt Pavements are Quiet
![Quiet Pavement Pavementtire noise has been studiedfor well over 30 years and several large Quiet Pavement “Pavement/tire noise has been studiedfor well over 30 years and several large](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-3.jpg)
Quiet Pavement “Pavement/tire noise has been studiedfor well over 30 years and several large databases have been compiled in the last decade. NCHRP Synthesis 268 is a summary of the research findings of this extensively studied topic. ”
![Quiet Pavement Vehiclegenerated noise comes from engine exhaust system aerodynamic Quiet Pavement • Vehicle-generated noise comes from: – engine, – exhaust system, – aerodynamic](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-4.jpg)
Quiet Pavement • Vehicle-generated noise comes from: – engine, – exhaust system, – aerodynamic noise – tire noise. Power train noise Coast- by noise • For > 50 mph, pavement/tire noise dominates.
![Quiet Pavement FHWA Noise Abatement Criteria 67 d BA this is not an Quiet Pavement FHWA - Noise Abatement Criteria 67 d. B(A) “this is not an](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-5.jpg)
Quiet Pavement FHWA - Noise Abatement Criteria 67 d. B(A) “this is not an absolute value or design standard, only a level where noise mitigation must be considered”
![Pain Threshold Conversation Hearing Threshold Quiet Pavement The Decibel Scale Discomfort Pain Threshold Conversation Hearing Threshold Quiet Pavement The Decibel Scale Discomfort](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-6.jpg)
Pain Threshold Conversation Hearing Threshold Quiet Pavement The Decibel Scale Discomfort
![Quiet Pavement The Decibel Scale Chain Saw Train Conversation Increasing the decibel level by Quiet Pavement The Decibel Scale Chain Saw Train Conversation Increasing the decibel level by](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-7.jpg)
Quiet Pavement The Decibel Scale Chain Saw Train Conversation Increasing the decibel level by 10 doubles the noise intensity!
![Quiet Pavement What Can Be Done Erect Noise Walls or Plant TreesShrubs Quiet Pavement What Can Be Done ? – Erect Noise Walls or Plant Trees/Shrubs](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-8.jpg)
Quiet Pavement What Can Be Done ? – Erect Noise Walls or Plant Trees/Shrubs – Control Surface Texture
![Quiet Pavement Noise Walls Effective only for those in lineofsight Do not reduce noise Quiet Pavement Noise Walls Effective only for those in line-of-sight. Do not reduce noise](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-9.jpg)
Quiet Pavement Noise Walls Effective only for those in line-of-sight. Do not reduce noise at source.
![Quiet Pavement Noise Walls Effectiveness must justify expense Cases I40 Knoxville Quiet Pavement Noise Walls • Effectiveness must justify expense. • Cases: – I-40, Knoxville:](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-10.jpg)
Quiet Pavement Noise Walls • Effectiveness must justify expense. • Cases: – I-40, Knoxville: >$25, 000/home – I-285, Atlanta: Requirements of > 69 d. B(A) and < $50, 000/home – U. S. 441, West Boca, FL: > 67 d. B(A), <$30, 000/home, reduction of > 5 d. B(A) – Nationwide (FHWA, 1998): >$1 M/mile
![Quiet Pavement What Can Be Done Erect Noise Walls or Plant TreesShrubs Quiet Pavement What Can Be Done ? – Erect Noise Walls or Plant Trees/Shrubs](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-11.jpg)
Quiet Pavement What Can Be Done ? – Erect Noise Walls or Plant Trees/Shrubs – Control Surface Texture
![Quiet Pavement Surface Texture Conclusions In general when densegraded asphalt and PCC pavements are Quiet Pavement Surface Texture Conclusions, “In general, when dense-graded asphalt and PCC pavements are](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-12.jpg)
Quiet Pavement Surface Texture Conclusions, “In general, when dense-graded asphalt and PCC pavements are compared, the dense-graded is quieter by 2 to 3 d. B(A)”
![Quiet Pavement The Decibel Scale 67 d BA 50 ft Quiet Pavement The Decibel Scale 67 d. B(A) 50 ft](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-13.jpg)
Quiet Pavement The Decibel Scale 67 d. B(A) 50 ft
![Quiet Pavement A reduction of 3 d BA is like doubling the distance from Quiet Pavement A reduction of 3 d. B(A) is like doubling the distance from](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-14.jpg)
Quiet Pavement A reduction of 3 d. B(A) is like doubling the distance from the noise. 67 d. B(A) - 3 d. B(A) = 64 d. B(A) 100 ft
![Quiet Pavement Conclusions In general when dense graded asphalt and PCC pavements are compared Quiet Pavement Conclusions: “In general, when dense -graded asphalt and PCC pavements are compared,](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-15.jpg)
Quiet Pavement Conclusions: “In general, when dense -graded asphalt and PCC pavements are compared, the dense-graded is quieter by 2 to 3 d. B(A)” A 3 d. B(A) reduction corresponds to: - doubling the distance - reducing traffic volume by 50% - reducing traffic speed by 25%
![Quiet Pavement Conclusions Opengraded asphalt shows the greatest potential for noise reduction for passby Quiet Pavement Conclusions: “Open-graded asphalt shows the greatest potential for noise reduction for passby](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-16.jpg)
Quiet Pavement Conclusions: “Open-graded asphalt shows the greatest potential for noise reduction for passby noise. Reduction when compared to dense-graded asphalt ranged from 1 to 9 d. B(A). ” A 9 d. B(A) reduction corresponds to: - a reduction in traffic noise by almost 50%!
![Quiet Pavement OGFCs Reduce Noise and Improve Visibility Quiet Pavement OGFCs Reduce Noise and Improve Visibility](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-17.jpg)
Quiet Pavement OGFCs Reduce Noise and Improve Visibility
![Quiet Pavement Noise Reduction Open vs Dense Graded Mixes Source NCHRP 284 Quiet Pavement Noise Reduction Open vs Dense Graded Mixes Source: NCHRP 284](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-18.jpg)
Quiet Pavement Noise Reduction Open vs Dense Graded Mixes Source: NCHRP 284
![Quiet Pavement What Can Be Done DOTs indicate a strong need for pavement Quiet Pavement What Can Be Done? • DOTs indicate a strong need for pavement](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-19.jpg)
Quiet Pavement What Can Be Done? • DOTs indicate a strong need for pavement noise control strategies. • Proper selection of pavement surface is the best method to reduce noise from pavement/tire interactions.
![Quiet Pavement Effect of Pavement Surface OGFC is the quietest surface type Wayson Quiet Pavement Effect of Pavement Surface • OGFC is the quietest surface type. (Wayson,](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-20.jpg)
Quiet Pavement Effect of Pavement Surface • OGFC is the quietest surface type. (Wayson, NCHRP Synthesis 268) • SMA has also proven to be a quiet surface. (Wisconsin DOT, 1993) • Dense graded HMA surfaces are quieter than PCC pavements. (Hibbs and Larson, Report FHWA-SA-96 -068, May 1996)
![Quiet Pavement Noise Makes News Families Near I275 is lobbying the Michigan DOT for Quiet Pavement Noise Makes News! Families Near I-275 is lobbying the Michigan DOT for](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-21.jpg)
Quiet Pavement Noise Makes News! Families Near I-275 is lobbying the Michigan DOT for sound abatement. In 1999, MDOT rebuilt I-275 with concrete. Residents contend the project has increase noise levels. Levels have been registered upwards of 90 decibels. Steve Phillips of Berkshire, England-based TRL Limited spoke about England’s 10 -year plan to install quieter surfaces on 60% of main trunk roads. The surfaces will be SMA or OGFC.
![Quiet Pavement Summary Highway noise is important to the public Small changes Quiet Pavement Summary • Highway noise is important to the public. • Small changes](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-22.jpg)
Quiet Pavement Summary • Highway noise is important to the public. • Small changes in d. B level are noticeable. – Decrease of 9 d. B(A) reduces noise by 50% – Decrease of 3 d. B(A) is like doubling distance
![Quiet Pavement Summary Noise walls can work but They are expensive Quiet Pavement Summary • Noise walls can work, but: – They are expensive. –](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-23.jpg)
Quiet Pavement Summary • Noise walls can work, but: – They are expensive. – They don’t work in all types of terrain. – Source of noise is still there. • Asphalt pavements can reduce noise at the source by up to 9 d. B(A).
![Quiet Pavement Summary Asphalt pavements for noise reduction in order of effectiveness Quiet Pavement Summary • Asphalt pavements for noise reduction in order of effectiveness: –](https://slidetodoc.com/presentation_image_h/323b28075c14b59c89f29555f13c85c8/image-24.jpg)
Quiet Pavement Summary • Asphalt pavements for noise reduction in order of effectiveness: – OGFC – SMA – Dense-Graded HMA Hot Mix Asphalt PCC
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