Team Members


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Michael A. Knodler, Jr., Ph.D.


Michael A. Knodler, Jr. Ph.D, is a professor in the Transportation Engineering Program of the Department of Civil and Environmental Engineering.

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Chris Ahmadjian, Ph.D.

Associate Director

Chris is responsible for leading a diverse team of highly skilled in-house and affiliated professionals to create a dynamic environment of innovative thinking.

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Training & Outreach

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Karen J. Dodge

Manager of Training and Development

Karen has a long history working in the public sector, beginning as a photographer for the State DPW in the 1980's.

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Cynthia Schaedig

Project Coordinator

Cindy Schaedig is a Program Coordinator with Baystate Roads. She has eight years of experience working in various positions within a city DPW.

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Brenda Codella

Project Coordinator

Brenda Codella is a Project Coordinator for the Transportation Center at the University of Massachusetts Amherst.

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Michael Smith

Technical Training Specialist

Michael Smith is the Technical Training Specialist from Baystate Roads. He was a Highway Superintendent for 20 years where he development and implemented modern road maintenance techniques.

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Rebecca Cyr

Senior Transportation Specialist

Becca is the Senior Transportation Specialist with UMTC and started her work here in September of 2018.

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Matt Mann

Transportation Specialist

Matt has over 15 years of regional transportation planning experience.

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Tracy Zafian

Research Fellow

Tracy Zafian is a Research Fellow at the UMTC.

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Robin Riessman

Director, UMassSafe

Robin holds a master’s degree in public health and has worked in the field of highway safety for nearly 30 years.

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Jennifer Gazzillo

Program Manager, UMassSafe

Jenn has been with UMassSafe since her years as a student research assistant.

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Dr. Cole Fitzpatrick

Research Assistant Professor, UMassSafe

Cole has been an active member of the UMassSafe program since his time here as a graduate student. 

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Ben Roney-Yeager

Research and Project Assistant, UMassSafe

As a Research and Project Assistant, Ben provides technical support for all UMassSafe research and outreach activities as well as acts as the in-house technical editor.

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Finance and Administration

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Kristina Stetson

Business Manager

Kristina Stetson joined the UMass Transportation Center Regional Traveler Information Center (RTIC) in 2001 as the project Business Manager.

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Kimberly Foster

Grants & Contracts Coordinator

Kimberly joined the UMass Transportation Center in February 2017 as the Grants & Contracts Coordinator.

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Michelle Augustinowicz


Michelle has 24 years of bookkeeping experience.

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Kassandra Rounds

Administrative Assistant

Kassandra joined the UMass Transportation Center in January 2017 as an Administrative Assistant.

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Marketing and Communications

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Aldo Villani

Manager of Marketing and Communications

With over 20 years of graphic design, web design and marketing experience, my goal is to increase the awareness and exposure of the UMass Transportation Center.

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Kathryn Donnelly

Media Relations Specialist

Kathryn Donnelly has been with the UMass Transportation Center since June 2014. Starting as a Workshop Coordinator under Baystate Roads, she transitioned to the Media Relations Specialist for the center in early 2016.

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Core Faculty

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Song Gao

Associate Professor

Dr. Gao has been an Associate Professor for the Department of Civil and Environmental Engineering since September 2013.

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Daiheng Ni


Dr. Ni has been a Professor for the Department of Civil and Environmental Engineering since 2011.

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Eleni Christofa

Associate Professor

I have research experience in traffic operations, management, and safety with a focus on multimodal transportation systems.

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Eric Gonzales

Associate Professor

I have research experience in modeling urban street networks, and my interests are in the operation, management, design, and safety of large-scale multimodal transportation systems.

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Chengbo Ai

Chengbo Ai

Assistant Professor

My interdisciplinary research focuses on developing computational models, automated algorithms and hardware systems using remote sensing technologies and spatial analysis techniques as they are applied in the fields of transportation asset management, geometry design and roadway safety, pavement preservation and maintenance, and many other critical transportation applications.

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Jimi Oke

Assistant Professor

My research focus lies in accessibility, resilience and sustainability in networks. I am interested in solving problems at the nexus of transportation, energy and infrastructure. My methods combine data mining, network science, machine learning and optimization.

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John Collura

Professor Emeritus

Dr. Collura is the Director of the UMass Aviation Center and Professor Emeritus for the Department of Civil and Environmental Engineering.

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Paul Shuldiner

Professor Emeritus

Dr. Shuldiner is Professor Emeritus for the Department of Civil and Environmental Engineering.