The Company - Engineering Staff
Bowlby & Associates, Inc., was
established in 1991 by William Bowlby and Patricia W. Bowlby.
Its engineering staff includes its President, Dr. William
Bowlby, P.E.,
Senior Project Manager and Engineer Dr.
Darlene Reiter, P.E.,
Project Manager and Engineer Mr. R. Clay Patton, and
Project Manager and Engineer Mr. Geoffrey Pratt,
P.E.
PRESIDENT
Dr. William Bowlby, P.E.
Dr. Bowlby has been
President of Bowlby & Associates since its formation. He has over 35 years
experience in transportation noise analysis, with emphasis on measurements,
modeling, abatement design, analysis methods development, training, and
training tool development.
His experience includes
three and a half years with the New York State Department of Transportation,
nearly five years with the Federal Highway Administration (FHWA) and 16 years
with
Dr. Bowlby has been
principal engineer or key team member on transportation noise studies for many major
and often controversial projects. Noise
study clients have included the State transportation agencies in
Under his direction, Bowlby
& Associates was asked by the Tennessee DOT to review and revise the TDOT
Noise Policy, which included a comparison of FHWA STAMINA 2.0/OPTIMA and FHWA
Traffic Noise Model (TNM) noise barrier designs. Dr. Bowlby was also asked by the Maryland SHA
to review its Noise Technical Program and brief the State Highway Administrator,
and to serve as the subject matter expert for a traffic noise video.
Maryland SHA also asked Bowlby & Associates to assist on a controversial
noise barrier design for I-695 in
Dr. Bowlby was asked by the
City of Alexandria, Virginia, to lead a comprehensive review and evaluation of
the Virginia DOT noise abatement plans for the Woodrow Wilson Bridge
Reconstruction Project. The results include many recommendations to the
City Council and Mayor, the Woodrow Wilson Bridge Citizen Task Force, and
Virginia DOT, leading to important changes in some of the designs.
Dr. Bowlby led the firm’s
Ohio DOT research study, Consideration of
Land Use Planning in the ODOT Noise Abatement Process, I-675, Greene County. He also led a major traffic noise abatement
research study for Montana DOT, Traffic
Noise in Montana: Community Awareness and Recommendations for a Rural State.
He led the team that
developed the three-day National Highway Institute (NHI) training course on
Highway Traffic Noise. He currently is
an instructor for that course and coordinates a pool of national expert
instructors when scheduling NHI course sessions. He also co-developed a six-day series of traffic
noise training modules for New York State DOT.
He co-developed and co-teaches a four-day training course on the FHWA
Traffic Noise Model 2.5 with a one-day Traffic Noise Fundamentals optional
component. The course has been taught
over 30 times since 1998 to hundreds of State DOT and consulting engineers from
throughout the
Dr. Bowlby directs a number
of multi-year, task order term agreements for noise work. Through a series of on-call agreements with
Tennessee DOT, the firm has conducted many major studies, including a statewide
needs assessment and prioritization for Type II noise barriers. He also leads on-call teams under agreements
with Arkansas HTD and the USDOT Volpe Center Acoustics Facility. The firm is also a member of on-call teams
for California DOT and Maryland SHA.
Past on-call clients have included Montana DOT, New York State DOT,
Illinois State Toll Highway Authority, and the National Park Service.
Both while at Vanderbilt
and Bowlby & Associates, Dr. Bowlby was active in the development
and evaluation of the FHWA Traffic Noise Model. At Vanderbilt, he
was one of the investigators who developed recommendations for TNM’s features
for the USDOT. He then developed the
speed and sound level algorithms for interrupted flow and for heavy trucks on
grade. Separately, he led a team that conducted extensive validation and
functionality testing of TNM. Through
Bowlby & Associates, his team developed the TNM-Trainer CD-ROM for USDOT that was distributed with TNM.
Dr. Bowlby completed many
other noise research studies while at Vanderbilt University, including noise
barrier analysis and design studies for Maryland SHA (I-68, Bowie), New Jersey
DOT (I-95 and I-80, Ridgefield), Texas DOT (Beltway 8, Houston), Pennsylvania
DOT (I-95, Philadelphia, and I-78, Allentown), and California DOT (Parallel
barrier modeling for Route 85 in San Jose and I-405 in Brentwood). He also led a team conducting a major field
evaluation of the I-440 noise barriers for Tennessee DOT. Additionally, he played a key role in traffic
noise barrier analysis and design studies for Tennessee DOT for I-440 in
His other
·
Member
of the FHWA Traffic Noise Model development, responsible for the interrupted
flow emission level data base development, emission level equation derivation,
and speed algorithm derivation
·
Evaluation
and validation testing of TNM for USDOT
·
Investigator
for Washington State DOT studies on Comprehensive
System-Level Noise Reduction Strategies (including noise-compatible
development) and on Noise Mitigation
Strategies
·
Development
of the TrafficNoiseCAD analysis system for STAMINA using AutoCAD and
MicroStation
·
Development
of a method for using STAMINA in non-constant speed situations, published as NCHRP Report 311
·
Development
of the IMAGE-3 program for parallel noise barrier analysis
·
Assessment
of the state of the practice in noise barrier design, construction and
maintenance, published as NCHRP Synthesis
181
·
Chair
of the American National Standards Institute Working Group that developed ANSI S12.8-1987 for noise barrier
measurements
·
Finalization
of the FHWA HICNOM computer program, model validation and user's manual
·
Editor
of the original FHWA Sound Procedures for
Measuring Highway Noise manual and a co-editor of the STAMINA 2.0/OPTIMA User's Manual
Dr. Bowlby's air quality
work has focused on mobile source emissions analysis, dispersion modeling, and
planning issues investigation. He directed the air quality studies for
the Gulf Coast Maglev Train project and the Nashville Metropolitan Transit
Authority Commuter Rail project. Previously, he led the air quality
analyses for the Nashville Regional HOV and CBD Access Studies for the
Tennessee Department of Transportation and the Nashville Metropolitan Planning
Organization (MPO). He also led detailed evaluations of the air quality
benefits of traffic signal coordination systems in the cities of
In addition to his air
quality work at Bowlby & Associates, Dr. Bowlby led many air quality
studies through
Contact Bill Bowlby
SENIOR PROJECT ENGINEER
Dr. Darlene Reiter, P.E.
Dr. Darlene Reiter, P.E.,
joined the company in 1997 as Senior Project Engineer and Project Manager after
receiving her doctorate at
Dr. Reiter has been the
project manager for many Bowlby & Associates noise barrier design projects
for Tennessee DOT, including I-65 in
Dr. Reiter also played a
major role in the review and evaluation of the Woodrow Wilson Bridge
Reconstruction Project noise abatement plans for the City of Alexandria, Virginia. She had a lead role in a similar study for
the City of
Dr. Reiter is an expert in
transportation air quality analysis. She
has served as the air quality specialist for the Bowlby & Associates
studies for Tennessee DOT and
While at
Dr. Reiter’s dissertation
research at Vanderbilt focused on the evaluation of the emissions impacts of
traffic signal coordination systems using modal transportation and emissions
data. At Vanderbilt, she also completed
an analysis of the air quality benefits of alternative Transportation Control
Measures for the Nashville Metropolitan Planning Organization and Transit
Authority. She also conducted the 1992, 1993 and 1994 Air Pollutant
Inventories for the
Prior to Bowlby &
Associates and Vanderbilt, Dr, Reiter had six years’ experience with McMahon
Associates as a transportation engineer conducting studies throughout
Contact Darlene Reiter
PROJECT
MANAGER AND ENGINEER
Mr. R. Clay Patton
Mr. Clay Patton, a civil
engineer, has played a key role at Bowlby & Associates since the company’s
inception in 1991, focusing on transportation noise measurement, prediction and
abatement. He has been the responsible engineer for over a dozen noise
and noise/air quality studies for or reviewed by the Louisiana Department of
Transportation and Development, including the I-49 New Construction EIS in
Lafayette and the EA for New Florida Avenue Bridge Construction in Jefferson
Parish.
Mr. Patton had the lead
role in the Arkansas HTD’s I-40 Widening Traffic Noise Study and Barrier Design
in
Mr. Patton has also had the
lead in the noise measurement work on our studies for the National Park Service
involving natural soundscapes, traffic noise, snowmobile and snowmachine noise,
concert noise, stadium noise and Air Tour Management Plans. He has conducted measurement studies many
parks, including Yellowstone, Grand Teton,
Mr. Patton is very
experienced in the use of TNM 2.5 and many kinds of noise measurement
equipment. He has also attended Bowlby
& Associates’ FHWA TNM 2.5 training course and now assists with the course
workshops, including sessions for
Contact Clay Patton
PROJECT MANAGER AND ENGINEER
Mr. Geoffrey Pratt, P.E.
Mr. Geoffrey Pratt, Project
Engineer, has worked on transportation noise and air quality studies since
1999. He was the engineer responsible for traffic noise analyses for
Mississippi DOT (Greenville Bypass EIS in
Mr. Pratt also played a
major role in the TDOT statewide needs assessment for Type II (retrofit) noise
barriers and the follow-up prioritization study, having the lead in developing
the prototype TDOT traffic noise management geographic information system using
ArcView. He also had key roles in the
Ohio DOT I-675 Undeveloped Land Use Noise Study near
Mr. Pratt has attended the
3-day MOBILE6 Emissions Model
Training Course sponsored by USEPA and FHWA, and the FHWA MSAT training
course. He has also attended Bowlby
& Associates’ FHWA TNM training course and now assists with the course
workshops, including courses for California DOT and Georgia DOT. He is experienced with noise and air quality
software including TNM 2.5, CadnaA, MOBILE6, and CAL3QHC. He is also skilled with Bentley’s
MicroStation and Powerdraft programs, AutoCAD, and ArcView.
Contact Geoff Pratt
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