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TRANSCRIPT
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NHI 142051 Highway Traffic Noise
NHI’s Revised Noise Training Course
by
William Bowlby, Bowlby & Associates, Inc., and Harvey S. Knauer, Environmental Acoustics, Inc.
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History Original 3-day course developed in 2004 – 2007
• Prime Contractor & Instructional System Design: University of Tennessee Center for Transportation Research
• Subject Matter Experts: Bill Bowlby, Harvey Knauer and Soren Pedersen
Taught 15 times from 2007 – 2011, including FDOT pilot
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Recent Activity FHWA felt a need to streamline to two days while porting
some lessons to the Web
Course revision started in March 2012:
• Prime & Instructional System Design: UT Center for Transportation Research
• Subject matter experts: Bill Bowlby and Harvey Knauer
• Technical direction and review: Mark Ferroni and Adam Alexander, FHWA
Pilot to be taught this week, hosted by NC DOT
Course Goal
To provide an overview of:
• Legislation and regulations pertaining to highway traffic noise, and
• The requirements and techniques for noise analysis and abatement
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Target Audience
Generalists, reviewers, and future specialists
• State highway agency environmental specialists, designers, planners and engineers
• City/County planners, engineers and environmental coordinators or specialists
• FHWA staff with NEPA responsibilities
• Consultants
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Course Learning Outcomes
At the end of this course, participants will be able to:
• Explain the basic concepts of traffic noise and its generation, propagation and attenuation
• Describe necessary requirements to comply with the FHWA noise regulation, as codified in 23 CFR 772
• Discuss applicable noise measurement, analysis and reporting procedures
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Agenda – Day 1
• Introduction and Overview
• Lesson 1 Basic Traffic Noise Concepts
• Lesson 2 Noise Legislation, Regulations and Policies
• Lesson 3 Noise Study Requirements
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Agenda – Day 2
• Lesson 4 Noise Measurement
• Lesson 5 Basics of Traffic Noise Modeling
• Lesson 6 Applications of Traffic Noise Modeling
• Lesson 7 Barrier Acoustical Concepts and Design
• Lesson 8 Noise Study Documentation
• Exam, Course Evaluation and Wrap Up
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Related Web-Based Training Courses
• NHI 142063 Highway Traffic Noise: Basic Acoustics • NHI 142064 Highway Traffic Noise: Construction Noise • NHI 142065 Highway Traffic Noise: Public Involvement • NHI 142066 Highway Traffic Noise: Compatible
Planning and Development • NHI 142067 Highway Traffic Noise: Project-Related
Noise Abatement Free of charge at www.nhi.fhwa.dot.gov
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Measuring Noise
• Six Larson-Davis LxT sound level analyzers available during the class
• Used in Lesson 4 with an ISIS recording of traffic noise
Lesson 1 Basic Traffic Noise Concepts
• Characteristics of sound
• Sound propagation
• Noise barrier basics
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Lesson 2 Noise Legislation, Regulations and Policies
Legislation, such as –
• National Environmental Policy Act of 1969
• Federal Aid Highway Act of 1970
• National Highway System Designation Act of 1995
Regulations – 23 CFR 772, Procedures for Abatement of Highway Traffic Noise and Construction Noise
Policies – Highway agency implementation of 2010 revisions to 23 CFR 772
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Lesson 3 Noise Study Requirements Small group activity and instructor-facilitated discussion
• Determining the tasks involved in conducting a traffic noise study
• Discussing why these tasks are important
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Lesson 4 Noise Measurement
• Reasons for measuring noise, including model validation
• Measurement procedures, including proper planning, execution and follow-through
• Basic instrumentation and accessories
• Group activities: Measuring Traffic Noise and Planning a Noise Measurement Program
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Lesson 5 Basics of Traffic Noise Modeling
• When to model and why
• Vehicle types and emission levels
• Modeling considerations – mapping, traffic data, analysis areas
• How to model receptors as FHWA TNM receiver points
• Class activity: Modeling Non-residential Receptors
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Lesson 6 Application of Traffic Noise Modeling
• FHWA TNM components and features
• Input data objects in FHWA TNM
• Understanding FHWA TNM results
• Group activities: Modeling Input Objects and Determining Noise Impacts from FHWA TNM Results
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Lesson 7 Barrier Acoustical Concepts and Design
• Acoustical principles, issues and criteria
• Applying FHWA TNM to the case study
• Class activity: Assessing Acoustical Feasibility and Reasonableness of a Noise Barrier Design
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Lesson 8 Noise Study Documentation
• Required information in environmental documents
• Noise Study Report content
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Upon Completion of Training
• CDs with Instructor Notes, Highway Construction Noise Handbook and Noise Barrier Design Handbook
• Certificate of participation from NHI
• Eligibility for CEUs – attendance at all sessions and passing of final exam
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Instructor Team FHWA • Adam Alexander
• Mark Ferroni
• Mike Roberts
• Mary Ann Rondinella
• Stephanie Stoermer
Volpe Center • Judy Rochat
• Roger Wayson
Consultants • Bill Bowlby (also Instructor
Coordinator) • Paul Burge, URS • Jim Cowan, URS • John Jaeckel, HNTB • Harvey Knauer, EAI • Darlene Reiter, Bowlby
Next Steps Teach a special 3-day version including the planned web-
based lessons at Columbia College Chicago, August 21-23
• Contact Ron Elling, [email protected]
• Or visit:
www.colum.edu/Academics/Audio_Arts_and_Acoustics/NHI/index.php
Finalize 2-day course after the pilot
Schedule sessions of NHI 142051 Highway Traffic Noise • Visit the NHI web site: www.nhi.fhwa.dot.gov
• Contact any of the instructors
NHI will finish porting the four lessons to the Web
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Acknowledgements NHI: Mila Plosky
FHWA : Mark Ferroni and Adam Alexander
University of Tennessee team
• Airton Kohls, Project Manager
• Jean Derco and Margaret Atkins, Instructional Systems Designers
• Tammy Enix, The One Who Gets Things Done
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