CVSA/ISWIM Workshop Schedule

Sunday, Sept. 21, 8 a.m. to 5:35 p.m. MDT
Sheraton Denver Downtown, Plaza Building, Concourse Level, Plaza Ballroom F

Introduction to Weigh-In-Motion

Speaker Bios

Jacqueline Darr is the supervisor of the permit office at North Dakota Highway Patrol Motor Carrier Section, where she has been working since 2001. Ms. Darr is currently vice chair of CVSA’s Size and Weight Committee and former chair of the Western Association of State and Highway Transportation’s Highway Transport Subcommittee. Before working for the patrol, she worked for a regional trucking company. Ms. Darr was also a member of the North Dakota National Guard for 12 years and is a Gulf War veteran.

Dr. Gustavo Garcia Otto is a civil engineer with a Ph.D. from the Federal University of Santa Catarina and has more than 15 years of experience with WIM systems and infrastructure monitoring. He is technical coordinator at LabTrans, ISWIM vice president of science and a postdoctoral fellow at Gustave Eiffel University in France. He also leads Brazil’s national WIM standards committee at the Brazilian Technical Standards Association.

CVSA President Capt. John Hahn began his career with the Colorado State Patrol (CSP) in 1999 and is currently the commander of the CSP Motor Carrier Safety Section. In his role, Capt. Hahn leads a unit with statewide responsibility for commercial motor vehicle enforcement, safety education and outreach. He serves as an advisor to CSP executive leadership on regulatory, rulemaking and other public policy matters related to commercial motor vehicle safety. Through his involvement with CVSA, Capt. Hahn has served as chair of its Policy and Regulatory Affairs Committee and Region III president. Capt. Hahn previously served as a member of the Research Advisory Committee for the American Transportation Research Institute and is a member of the board of directors for the Colorado Motor Carrier Foundation. He holds a Bachelor of Science degree in aviation technology from Metropolitan State University and is a graduate of the 267th session of the School of Police Staff and Command through Northwestern University.

Sgt. Kendell Jackson has been a trooper with the North Carolina State Highway Patrol (NCSHP) since 2003, where his duties include size and weight enforcement. Sgt. Jackson currently presides over NCSHP’s Size and Weight Section and the state’s High Priority Grant programs. Sgt. Jackson also serves as the chair of the CVSA Size and Weight Committee.

Hani Nassif is a professor at Rutgers, The State University of New Jersey with more than 30 years of research and teaching experience. His expertise includes WIM and structural health monitoring (SHM) technologies, reliability-based bridge design and evaluation, and advanced cementitious materials and composites. He has led many projects in developing WIM and SHM for infrastructure applications in support of the first-in-the-nation WIM-based direct enforcement of overweight trucks implemented by New York City Department of Transportation (NYC DOT) and the rehabilitation of the Brooklyn-Queens Expressway (BQE) concrete cantilever structure. He is active in developing national standards for direct WIM enforcement to update the National Institute of Standards and Technology’s Handbook 44 and serves as member of ASTM Committee 1318-E. Professor Nassif is a fellow of the International Association of Bridge and Structural Engineers and the American Concrete Institute and was awarded its prestigious Arthur J. Boase Award in 2025. He is also a member of the Engineering Honor Society Tau Beta Pi, the National Civil Engineering Honor Society Chi Epsilon and the Scientific Research Honor Society Sigma Xi. He serves as senior editor for the American Society of Civil Engineers’ (ASCE) “Journal of Construction and Building Materials” and section editor of ASCE’s “Journal of Bridge Engineering.” Professor Nassif obtained his Bachelor of Science and Master of Science degrees in civil engineering from the University of Detroit and received his Ph.D. in structural engineering and a graduate certificate in electrical engineering and computer science from the University of Michigan-Ann Arbor.

Tanvi Pandya has more than 25 years of experience and began her career as an engineer within the private sector with bridge projects in New York City and New Jersey. In 2016, Ms. Pandya joined NYC DOT as the program manager for the BQE Rehabilitation Project, budgeted at $1.7 billion. Her role at the NYC DOT was recently expanded to include leading the NYC DOT bridges’ Design-Build Program and the emergency bridge construction group, while continuing to oversee the BQE asset-monitoring program. In order to protect the existing BQE structure, she led the efforts that resulted in the first-in-the-nation implementation of direct enforcement of weight limits using WIM. Ms. Pandya has a Bachelor of Science degree in civil engineering from Stevens Institute of Technology, is a professional engineer licensed in New York and is certified by the Design-Build Institute of America.

John Sova is a roadside inspection specialist at CVSA, joining the Alliance in 2023 after 21 years of law enforcement service in North Dakota as a state trooper. Prior to joining CVSA, he served in the Motor Carrier Operations division for 16 years, including five years as Motor Carrier Safety Assistance Program coordinator. Mr. Sova held Federal Motor Carrier Safety Administration (FMCSA) safety investigator certification and CVSA inspector certifications in all roadside and hazardous material courses. He was associate staff instructor for FMCSA’s National Training Center in North American Standard Inspection Parts A and B and Passenger Carrier Vehicle Inspection for eight years. Mr. Sova served as the CVSA Vehicle Committee chair, CVSA Automated Driving System Workgroup vice chair and CVSA Level VIII Electronic Inspection Ad-hoc Committee chair. Mr. Sova has a Bachelor of Science degree in business administration and management information science from the University of Jamestown, and he is the 2011 CVSA North American Inspectors Championship Jimmy K. Ammons Grand Champion.

Dr. Tianjia Tang is the chief of the Travel Monitoring and Surveys Division in the Office of Highway Policy Information, Federal Highway Administration, US. Department of Transportation, in Washington, DC. He oversees the travel monitoring program, the National Household Travel Survey program, and the National Passenger Travel Analysis program. In his position, he provides leadership in delivering both technical and policy guidance to state and local governmental agencies, delivers timely travel and travel behavior data and information to the Administration, Congress, and the public, champions big data, big data analytics, and artificial intelligence (AI) and machine learning (ML) to enable data-driven decision making.

Dr. Tang began his Federal career with FHWA’s Atlanta Resource Center, where he provided both policy and technical assistance to State transportation departments, metropolitan planning organizations, and various other organizations in areas such as the National Environmental Policy Act, engineering design, travel demand modeling, air quality, and transportation conformity.

Before his Federal tenure, Dr. Tang worked in private consulting and at the Florida Department of Transportation, where he was involved in environmental analysis, project development, engineering design, and program management.
Dr. Tang is a professional engineer registered in the State of Georgia. He obtained his BS in engineering from the University of Central Florida, an MS from the University of Nebraska-Lincoln, and a Ph.D. from the University of Arkansas.

Hans van Loo is the owner and consultant of Corner Stone International in Switzerland. Mr. van Loo has been involved in the WIM field for more than 20 years. He is an ISWIM founding member and serves as its coordinator of promotional activities. He has been involved in numerous national and international projects on the development and implementation of WIM technology and its applications for weight enforcement. Since 2013, he has been working as an independent expert and consultant for users and vendors of WIM systems and data from around the world.

Deborah Walker is a senior research engineer with the Federal Highway Administration (FHWA) specializing in highway research. She manages the traffic data collection and communication activities for the Long-Term Pavement Performance (LTPP) program. She oversees the technical and administrative duties for collecting quality traffic data for nearly 2,000 pavement test sections located throughout North America. She also leads and directs the publication of LTPP outreach material for its state and industry partners. Ms. Walker serves as the program and project manager for the geotechnical, hydraulics, non-destructive evaluation testing and structures laboratories at FHWA’s Turner-Fairbank Highway Research Center. In this role, she manages a multi-year, multi-million-dollar contract to provide technical support for the research labs. Prior to joining FHWA in 2002, Ms. Walker worked for the Texas Department of Transportation in the pavements area. Ms. Walker holds a Bachelor of Science degree in civil engineering from the University of Delaware and a Bachelor of Arts and Sciences degree from Lincoln University. Ms. Walker is a member of ISWIM and serves as president on its executive board of directors. She was also a member of the Transportation Research Board (TRB) Highway Traffic Monitoring Committee and co-chair of the TRB Weigh-in-Motion Subcommittee.

Chan Yang is a Bridge Engineer at HNTB Corporation with a Ph.D. in Civil Engineering. She specializes in Weigh-in-Motion (WIM) data analytics, reliability-based bridge code calibration, and developing site-specific live load models and load factors. Chan has significantly contributed to nationally recognized research initiatives, including NCHRP 12-123 (Load Rating of Segmental Bridges), NCHRP 12-127 (Load Rating of Long-Span Bridges), and the FHWA-funded Truck Platooning Impact on Bridges Phase II study. She has also participated in state Department of Transportation projects, such as the Bridge Resource Project funded by NJDOT. Chan also actively engages in designing and load rating tasks involving steel bridges, complex truss structures, and other sophisticated bridge systems.

WIM Showcase Projects

Leveraging Existing Infrastructure
Quarterhill, Ryan Begg

Presentation Description
The Hendersonville project demonstrates how Virtual Weigh Stations (VWS) can expand enforcement capacity by leveraging existing infrastructure. By combining weigh-in-motion (WIM) sensors, license plate recognition (LPR), Tires Anomaly and Classification (TACS) and rest areas. Sites like Hendersonville can serve as a stepping stone toward automated direct enforcement.

Project Highlights:

• • Three WIM sites including TACS integrated with existing static weigh station and VWS enabled rest areas.
  • Dual-use screening and beacons for truck flow control.
  • Portable scales and safety inspections enabled in rest areas.

Speaker Bio
Ryan is the Senior Director of Engineering at Quarterhill, where he leads cross-functional teams focused on advancing hardware, software, and sensing technologies across the company’s transportation solutions. With over two decades of experience in research and product development, Ryan has played a key role in shaping the technical foundation behind some of Quarterhill’s most impactful Intelligent Transportation Systems (ITS) innovations.

His expertise spans sensor design, embedded systems, full stack software development as well as AI and computer vision systems, underpinned by a Bachelor of Science in both Electrical Engineering and Computer Science from the University of Saskatchewan. Ryan is passionate about solving complex challenges and driving technology that creates long-term value for customers and communities.

Weigh-in-Motion for Direct Enforcement- Intercomp’s Experience
Intercomp Company

Presentation Description
The use of Weigh-In-Motion (WIM) technology for the direct enforcement of overloaded vehicles represents the highest standard in modern overload control strategies. By enabling enforcement while vehicles remain in motion, WIM significantly improves efficiency compared to traditional static weighing. This presentation will share Intercomp’s global experience as a manufacturer of high-accuracy WIM sensors and scales used in direct enforcement programs. The focus will be on the key attributes and system functions required to ensure that enforcement records are generated with maximum reliability, minimizing the risk of errors and avoiding false positives.

Speaker Bio
Leonardo Guerson is a Product Manager and Application Engineer at Intercomp, specializing in Weigh-in-Motion systems for direct enforcement. He has led international projects across the Americas, Europe, and Asia, helping governments and integrators deploy accurate and reliable WIM solutions.

Tire Screening Made Easy
Drivewyze, Tom Kelly

Presentation Description
Tom Kelly of Fleetworthy will explore how advanced WIM (Weigh-in-Motion) systems, powered by Kistler quartz sensors, deliver tire screening capabilities without the need for additional infrastructure. Attendees will learn how existing pavement can be leveraged for installations—eliminating costly concrete slabs—and how Fleetworthy’s all-inclusive service agreement simplifies site management by removing equipment ownership burdens. This session offers a forward-looking perspective on cost-effective, low-maintenance, and data-rich roadside enforcement technologies designed to meet the evolving needs of enforcement agencies and state partners.

Speaker Bio
Tom Kelly serves as Director of Commercial Vehicle Compliance Solutions at Fleetworthy. With over 20 years of experience in transportation technology and commercial vehicle enforcement, Tom has led initiatives that bridge innovation with practical implementation across state and federal programs. His focus spans weigh station technology, compliance automation, and data-driven safety solutions. Tom brings a unique perspective on how the evolving landscape of fleet operations and roadside enforcement can benefit from integrated technologies and holistic service models.

WIMS for Infrastructure Monitoring and Enforcement
Kistler Instruments, Kiel Clasing

Presentation Description
When combined with infrastructure monitoring and enforcement capabilities, WIM can be highly effective at managing traffic demand, enhancing road safety and protecting our infrastructure. This presentation will highlight Kistler’s latest technology advancements and applications of WIM and SHM.

Speaker Bio
Kiel Clasing leads business development for Kistler Traffic Solutions, helping DOTs and authorities deploy advanced technologies to enhance road safety and protect our transportation network. Based in Sarasota, FL, Kiel is primarily focused on the eastern half of the US.

METTLER TOLEDO’s WIM for DOT and Enforcement Vehicle Systems
METTLER TOLEDO, Corey Dutiel

Presentation Description
Mettler Toledo WIM for enforcement boasts 25 years of success as a turnkey provider of WIM, Static Scale, and Service solutions. Their patented Auto-Calibration system ensures continuous, 24/7 accurate weight measurements by integrating Static Scale and WIM technologies, meeting or exceeding ASTM 1318 standards. They also offer advanced mainline WIM sorting fingerprinting technology for precise vehicle tracking across the system. With extensive remote support and the largest scale service network in North America, Mettler Toledo provides comprehensive service solutions to maximize system uptime and equipment maintenance.

Speaker Bio
Corey Dutiel has over 13 years of experience at Mettler Toledo, with 9 years dedicated to Project Management and 4 years in Sales within the WIM Sales and Service sector. He brings a strong background in Heavy Highway ITS and Civil Project Management and Estimating, combining technical expertise with extensive industry knowledge to support innovative solutions and customer success.

Experience and Effective Use of WIM Direct Enforcement
CAMEA Technology, Jan Fucik

Presentation Description
The presentation highlights CAMEA’s global experience with Weigh-In-Motion Direct Enforcement systems, showcasing their role in improving traffic flow and infrastructure protection. It addresses technical and legal challenges, and proposes integrated ITS solutions to enhance enforcement accuracy and efficiency.

Speaker Bio
Jan Fucik works as a Product Manager in CAMEA, as well as in Sales and Marketing. He graduated from the Brno University of Technology (BUT), Faculty of Information Technology and still works closely with researchers from BUT on development of new technologies and algorithms for Intelligent Transportation Systems and Visual Quality Inspection. Since 2023 he’s also in charge of the team in CAMEA Africa Limited, the company’s subsidiary in Nairobi, Kenya for the African market.