Who We Are

Ms. Stockton is a Transportation Analyst with expertise in long-range multimodal transportation planning, active transportation planning and safety, public health, and report writing. With Masters degrees in city and regional planning and public health, in addition to professional experience, Ms. Stockton is skilled at analyzing and synthesizing quantitative and qualitative data.

Interests & Hobbies

In her free time, Emma enjoys reading and taking long walks in nature and around the city. She lives in Washington, D.C. with her husband and two orange cats.

David Ferreira has more than 30 years of corporate and consulting experience across a wide range of industries, companies and business cycles. He has held senior positions at GE, KPMG, and Beneficial; founded Back Bay Consulting; and most recently served as Chief Administrative Officer for Abt Associates. His primary focus has been helping companies grow and improve performance through roles in business strategy and planning, organizational assessment and talent management. Earlier in his career Mr. Ferreira worked as a Prosecutor for the Massachusetts Attorney General and a Public Defender for the Commonwealth of Massachusetts. He currently serves as a member of the Board of Social Venture Partners and is a past board member of the Harvard Medical School Bio-Medical Science Career Program, the American Financial Services Association, and the Somerville New Jersey Home for Temporarily Displaced Children. Mr. Ferreira received a Master’s of Business Administration from the University of Michigan, a Master’s in Law from the University of Amsterdam, a Juris Doctorate from New England Law, and a Bachelor’s degree from Georgetown University.

Ryan J. Ellis is a Market Leader at Cambridge Systematics, Inc. (CS), as part of the Planning division at the firm. Based in Atlanta, GA, Ryan brings over fifteen years of experience in transportation marketing, communications, sales, and public/employer engagement. Paired with his work experience in both the public and private sectors, Ryan works to connect our clients’ vision to the unique planning services offered by CS. Before joining Cambridge, he served as a lead Marketing Strategist with ICF International’s Georgia Transportation practice, where his work included business development and branding and communications assistance for projects such as the New York Department of Transportation’s statewide Transportation Demand Management program and ITS4US demonstrations in Gwinnett County, Georgia, and Buffalo, New York.

Interests & Hobbies

Outside of work, Ryan and his partner, Josue, are avid travelers, often spending time exploring new countries and destinations each year. Currently, they reside just outside of Atlanta, GA, along with their two dogs rescue dogs, Mikey and Bulleit.

Brian holds a Master’s of Business Administration from Arizona State University and a Bachelor’s degree in Business Quality Management from Southwestern College. Before joining CS, Brian worked as a Senior Technology Project Program Manager for York Solutions at Optum Technology and prior to that as a Technical Delivery Manager at Kapsch TrafficCom North America. He also served 20 years in the United States Air Force in various roles including Aircraft Avionics Maintenance and International Treaty Compliance.

Interests & Hobbies

Brian lives in Corvallis, Oregon, with his wife and 2 dogs.  In his free time, he enjoys fishing, hiking, and spending time with family and friends.

Mr. Stock is a economist, researcher and quantitative analyst experienced in developing and executing innovative methods to collect and analyze information to support client research goals. His clients have included the Federal Highway Administration (FHWA), U.S. Department of Homeland Security (DHS), U.S. Federal Motor Carrier Safety Administration, and Transport Canada, as well as many regional, state and metropolitan agencies. His 40 years of experience includes regional economic impact assessment, benefit/cost analysis, operations analysis, policy analysis, business case development, grant writing, and research design and management. His focus for the past 27 years has been on determining impacts of programmatic, technological and infrastructure improvements on the profitability, efficiency, safety and security of transportation systems.

Kirk T. Steudle is an independent senior executive advisor and President of the Steudle Executive Group, LLC focused on advancing national transportation policy, executive coaching, and integrating technology into transportation.  His current clients include public agencies, private businesses, and academic institutions.  He is a noted expert in surface transportation and a nationally recognized leader in the integration of technology into transportation and the development of connected vehicle technology.

During his 32-year public employee career, he served as Director of the Michigan Department of Transportation (MDOT) from 2006-2018 directly serving both Democrat Governor Jennifer Granholm and Republican Governor Rick Snyder. Aside from his political, executive and management experience, he is a registered engineer in Michigan and had extensive experience in construction project management with his Civil Engineering degree focused on Construction Engineering. Kirk worked in every aspect of the DOT from Design and Maintenance to Permitting and Operations. He was instrumental in the significant development of the CAV ecosystem in Michigan.

Kirk, recently retired as Sr Vice President from Econolite Systems, an international traffic management and software company headquartered in California, where he ran the software, ITS integration, and field services businesses as well as the consulting services business.

He has led and contributed to significant research work with NCHRP, many with Cambridge Systematics, most recently completing Phase 1 of the National Vision for Transportation and currently starting Phase 2.  Previously he was the Principal Investigator for the development of the AASHTO Strategic plan and numerous asset management and ITS projects.

Mr. Steudle has extensive industry and business contacts developed over his 4-decade career. He served as president to the American Association of State Highway and Transportation Officials, AASHTO, chaired the Transportation Research Board, TRB, executive committee and chaired for the Intelligent Transportation Society of America, ITSA, Board of Directors. He is the current President of the Engineering Society of Detroit, a Board Trustee of Lawrence Technological University, serves on the Texas Technology Task Force and previously was a Board member of the Center for Automotive Research and an elected City Council member for the City of Essexville, Michigan.

Seema Singh is a Senior Professional in the Planning team at CS. Seema brings 10+ years of experience working at the research-policy-planning-and-education interfaces in sustainable development and transportation planning. She is a recent PhD in City and Regional Planning from Cornell where her research focused on mainstreaming gender and equity considerations into transportation policies and planning practices. Prior to that, Seema worked as a Research Associate at The Energy and Resources Institute (TERI) where she led several projects assessing the social, economic, and environmental impacts of transportation policies and programs. At CS, Seema is excited to bring her equity expertise to projects and clients across the US, and is currently supporting transit and research projects for NJDOT and CapMetro.

Interests & Hobbies

Outside work, Seema is an artist at heart and loves to paint. She also likes to travel and try different cuisines.

Levon Mikaelian specializes in spatial and network analysis using GIS and scripting tools, as well as transportation safety analysis, performance measurement, and data visualization. His previous research includes spatial statistical analysis of the relationships between multimodal transportation networks and socioeconomic outcomes. For his work at CS, he regularly uses R, Python, and SAS, and has a working knowledge of several other programming languages.

Interests & Hobbies

In his spare time, Levon likes to read, ride his bike, and watch Star Trek. He also enjoys exploring the trails and waterways around Tallahassee.

Claudette is a Senior Project Manager that specializes in transit operations, regulatory compliance, program planning and grant administration.

Tom joined CS in 1987 and has developed and applied travel demand models in over 60 locations. He has been an expert adviser to federal, state, and metropolitan planning agencies on model development and validation. He is a past chairman of the Transportation Research Board’s Transportation Demand Forecasting Committee.

Interests & Hobbies

Tom loves spending time with his wife and family, and sometimes they like spending time with him, too. He enjoys watching baseball even though he was never any good at playing it. He likes playing classic rock music at his desk, which he is sure his colleagues love. He enjoys doing transportation related things even when he isn't working. He has many more interests too numerous to list here, which is why he never sleeps.

Latasha has 20 years of marketing experience, serving in various roles as a customer loyalty marketing manager, marketing coordinator, and bid analyst. In these roles, Latasha led or co-led conference and event planning; participated in tradeshows around the country; crafted marketing communication, including company newsletters, mailers, brochures, and website content; and partnered with numerous sales teams in the coordination and development of proposals. At CS, Latasha leverages her extensive proposal experience as Marketing Manager, leading a team of high-performing proposal specialists who partner with consultant teams for the pursuit of new business.

Interests & Hobbies

Latasha lives in metropolitan Atlanta with her husband and son, and enjoys reading and attending outdoor events. She holds a Bachelor’s degree from Florida State University and is a member of APMP, the Association for Proposal Management Professionals.

Sheldon is a skillful leader, team-builder and manager who reaches across offices and practice areas to collaborate, innovate, and problem-solve. Sheldon has an exceptional ability to communicate complex issues and ideas like data and modeling. He has been instrumental in modeling and planning activities across the Southeast, providing our clients with data-driven results. That talent, together with his consistent dedication to supporting his peers in delivering the highest quality work, has made him a highly sought-after collaborator and mentor to junior, mid- and senior-level staff.

As the CS Client Relationship Manager, Susan brings her "insider's" understanding of government to her CS clients based on her interdisciplinary skills and customer perspective developed during a unique public service career at USDOT, the US House of Representatives, the US Senate, and OMB. She broke the glass ceiling as the first woman to lead an FHWA field office as Division Administrator -- giving her insights into strategic management, program delivery and problem solving that are valuable to her clients. Her focus on funding and financing, performance-based needs analysis, legislation, and transportation policy analysis have been successfully applied in an eclectic portfolio of national and state clients such as TRB's Interstate Futures Study, FHWA "reinvention" of the Conditions and Performance Report, exploration of road user charging via a New Zealand study tour and analyses of education strategies for VMT strategies, and studying the implications and current use of program flexibilities under the Federal-aid Highway Program.

Interests & Hobbies

During the pandemic, she returned to her creative hobbies, needlepointing, knitting, and crocheting up a storm. She's now turning to her stained glass and quilting projects. All will help decorate the house that she, and her husband Michael, are updating at the beach.

Dalia has 15 years of experience planning for the future of multimodal mobility. Her work focuses on transit planning and analysis, travel demand forecasting, and planning for emerging transportation technologies and their impacts on travel behavior and the built environment. Dalia has worked extensively for agencies across the country, particularly around the Washington DC metropolitan region. She uses her unique expertise to combine the technical areas of modeling, planning, and engineering to distill highly technical analysis to decision-makers and the public in a way that is understandable and useful. Dalia was named a Top Young Professional by ENR Mid-Atlantic in 2019.

Interests & Hobbies

Dalia lives in Washington, DC and enjoys exploring restaurants and theaters in and around the District. She is an avid traveler and is currently planning more trips than she will ever actually get to take.

Roan Bennett, a Vice President of Cambridge Systematics, has over 20 years of experience leading public-sector transportation agencies and providing value-added consulting services to clients. Roan has designed, implemented, and/or executed statewide and agency-level performance-based planning programs to ensure that customers are receiving the services that they need, agency priorities are being met and aligned with state-wide and federal goals, objectives and priorities, and public funds are being maximized. Roan also has been personally engaged in outreach and engagement activities to ensure that his agencies fully appreciate the needs of its customers. An experienced consultant, Roan’s areas of expertise includes: capital program management for large state agencies; performance measures and management; outreach and engagement; capital planning; strategic planning, multimodal transportation planning; operations management analysis; and standards oversight.

Interests & Hobbies

In my free time I love to travel with my family, attending all my kids extra curricular activities, playing golf and rooting for all my favorite New England sports teams.

Dan Haake leverages 15+ years of experience to help clients navigate infrastructure and policy challenges to improve their quality-of-life and competitiveness in today’s global marketplace. He has advised public and private organizations in 25 states and four countries on a wide range of transportation issues, including: goods movement, mobility, funding/financing, policy and electrification.

A national leader, Dan serves as the chair of TRB’s Trucking Industry Research Committee and past chair of ITE’s Urban Goods Movement Committee. He is an active member of APA’s national Legislative and Policy Committee and TRB’s Intermodal Freight Transport Committee. Dan has written over 25 publications, developed training courses and conferences, and served as an adjunct professor. He has been on the record for CQ Roll Call, NPR and Bloomberg.

Brad is the President & CEO of Cambridge Systematics, Inc. Prior to his appointment as CEO in 2011, he founded and led several CS business lines focused on technology planning in transportation, freight transportation, and developing and implementing software solutions for our clients. Before joining CS, Brad worked for the Massachusetts Bay Transportation Authority and in Civil Engineering Group at United Parcel Service. He has a B.S., in Business Management from Northeastern University.

Interests & Hobbies

Brad lives outside of Boston with his wife and three sons. In his free time Brad enjoys playing golf and watching his kids play football, hockey and lacrosse. He also enjoys spending time on Long Island, Maine, where he is a member of the Civic Association's Board of Directors.

Mathew Trostle is an Associate at Cambridge Systematics with experience in travel model development and application, data analysis, GIS analysis, and transportation safety planning. Mr. Trostle has experience in trip-based and activity-based travel demand model development, calibration, and application. He has also made contributions in data validation, network coding, data visualization, and alternatives analysis for numerous travel-demand forecasting projects from statewide model development to subarea modeling and corridor studies.

Mr. Trostle received a Master’s degree in Civil Engineering from the University of Colorado Denver and a Bachelor’s degree in Aviation Technology from the Metropolitan State University of Denver.

Interests & Hobbies

Mat enjoys skiing, biking, running, and hiking with his wife and their dogs in his home state of Colorado or anywhere else their travels might take them.

Ms. Ni joined Cambridge Systematics in 2019 as a Travel Demand Modeler with diverse range of skills and interests in travel demand modeling, big data analytics, transportation and land use, and transportation policies.

Interests & Hobbies

Xuenan likes soccer and boxing (pre-covid).

David brings 20 years of experience in statewide and regional multimodal transportation planning, policy analysis, performance management, climate change mitigation, and short- and long-range plan project prioritization. Over the last decade, he has managed or supported a diversity of statewide and regional, high-profile planning and policy projects, including multiple examples throughout the mid-Atlantic region, including West Virginia, Maryland, and Virginia, as well as in the southeast throughout North Carolina and Georgia.

Interests & Hobbies

David enjoys spending time with his family, including coaching youth sports teams, hiking, and mountain biking.

Sha’Von R. Terrell is an Analyst Jr. II (Senior Professional) with Cambridge Systematics, Inc. (CS) who holds seven years of industry experience and a master’s degree in City and Regional Planning from Morgan State University. Sha’Von has technical skills in project management, fundraising, grant-writing, geographic information systems (GIS), and public speaking and presentations. Sha’Von also brings a variety of competencies such as fostering community partnerships, creating engaging alliances within the historically marginalized communities as well as building and preserving relationships across sectors of nonprofit, Government, and faith institutions.

Interests & Hobbies

Sha'Von enjoys gardening, exploring local trails, and traveling. 

Sarah has over 17 years of experience in statewide planning, regional and urban transportation planning, and financial project management.

Interests & Hobbies

A lifelong Floridian, Sarah lives in Tallahassee with her son. Outside of work, Sarah is reliving Kindergarten again with her six-year-old son as he learns to read. She also enjoys doing art and Legos with her son, working in the yard, and reading.

Mark is a Senior Assoicate at Cambridge Systematics with expertise in Travel Demand Model application and development, transit ridership forecasting, discrete choice models, and toll road studies. Mark has been involved in a wide variety of projects since he began his transporation planning career in 2005, many of them utilizing his background in applied math and statistics.

Interests & Hobbies

In his free time, Mark enjoys playing his electric and acoustic guitars, running, hiking, playing board games, and spending time with his 12-year-old daughter Allison (with two Ls) and his partner Alison (with one L).

Ishraque is a transportation specialist with expertise in big data analytics, cloud computing, algorithm design, travel and freight demand modeling, network development, statistical modeling, and spatial analysis. He holds a Bachelor’s degree in Civil Engineering from Bangladesh University of Engineering and Technology in Dhaka, Bangladesh, and a Master’s degree in Transportation Engineering from Virginia Tech, USA.

Interests & Hobbies

In his free time, Ishraque enjoys spending time with family and friends, traveling, listening to music, and watching movies.

Baird Bream is a Senior Associate at Cambridge Systematics, Inc. (CS) team with a specialization in human services transportation planning, regulatory compliance and performance management. He has experience applying regulatory standards to operational environments, organizational frameworks, and planning processes to ensure compliance with Federal and state program standards and to encourage the adoption of best practices. He has developed project prioritization and policy analysis frameworks to support long-range planning efforts for transportation departments and transit agencies across the country, with a focus area on emerging mobility solutions for non-traditional transit markets and populations. 

Interests & Hobbies

In his free time, Baird enjoys running, cooking, exploring neighborhoods, and cheering for the Memphis Grizzlies. He lives in Chicago. 

Flora Castillo has over 20 years of experience as an accomplished and nationally recognized healthcare executive and a mobility and public transportation thought leader. Castillo is the President of Pivot Strategies, LLC, a consulting firm serving the infrastructure, aviation, healthcare and insurance industries. Her executive leadership in healthcare has led to transformative customer engagement, acquisition and health promotion strategies for the nation’s leading healthcare companies, including UnitedHealthcare and AmeriHealth Caritas. As former Vice President of Transportation for UnitedHealth Group, Castillo led innovative pilots to address social determinants of health barriers and spearheaded a medical transportation services program. Castillo also brings decades of experience as a former member of the board for multiple non-profit equity, transit and media organizations including National Urban Fellows, Rail-Volution, WHYY and others. In addition, Castillo was the first Latina and sixth woman elected chair to the American Public Transportation Association (APTA). In this role, Castillo represented APTA as an industry spokesperson in the U.S., Canada and other international associations. Serving as a senior policymaker and board member of New Jersey Transit between 1999 and 2019, Castillo was a champion for equity and affordability for transit-dependent riders and an advocate for service expansions and emerging technologies. Castillo holds a B.S. in Management Business Administration from Long Island University.

Russ has over 15 years of experience in traffic safety, public policy, advocacy, communications, strategic planning, and association program, meeting, and training management. He is a national expert on behavioral aspects of traffic safety. Prior to joining CS, Russ was Senior Director of Policy and Government Relations at the Governors Highway Safety Association (GHSA), where he represented GHSA's state and territorial highway safety office members on the national level and supported the implementation of impactful state and local traffic safety programs. Russ also served at AAA National where he helped AAA's network of motor clubs advocate to improve state traffic safety laws and initiatives. Throughout his career, Russ has partnered with a constellation of policymakers, advocates, government agencies, insurers, automakers, tech companies, criminal justice and public health authorities, researchers, engineers, and other stakeholders to improve transportation for all and prevent crashes, deaths and injuries on our roads.

Interests & Hobbies

Russ lives in Northern Virginia and enjoys listening to and making music, visiting bookstores, cooking at home, and spending time with family.

Michael has over 30 years of experience in freight and intermodal planning, seaport planning, commercial vehicle operations, Intelligent Transportation Systems (ITS), freight technology applications, and transportation planning. He has helped clients develop and implement freight programs, and has led national research designed to document best practices and provide guidelines for establishing successful freight programs. His work has included regional and state freight plans, truck parking studies, economic impacts of freight, seaport access and seaport planning, preparation of discretionary grant applications, freight technology testing and evaluation, commodity flow analysis, public and private section stakeholder engagement strategies and more. Throughout his career he has helped his clients tackle an every changing and evolving set of freight transportation challenges.

Xinbo holds a bachelor’s degree in aeronautical engineering from Northwestern Polytechnical University, as well as a master’s degree in aerospace engineering from Purdue University. Prior to joining CS, Xinbo served as a Senior Transportation Engineer at Evansville MPO, where he crafted travel demand model, microsimulation models and customized tools, while also conducting engineering and big data analyses. Here at CS, Xinbo will continue his commitment to developing effective, efficient, and user-friendly models.

Interests & Hobbies

Beyond his professional pursuits, Xinbo is an avid traveler, soccer enthusiast, and board game aficionado. He also shares his home with two beloved cats and tends to a thriving collection of koi fish. We're delighted to have Xinbo on board and look forward to his contributions to our team!

Raphael has over a decade of cross-functional experience in transportation and transit, in both public and private transportation organizations. At CS, he helps guide strategy for mobility information software and serves as a project manager for engagements involving customer-facing real-time data and multimodal trip planning.

Ken is a Senior Associate with expertise in strategic planning, finance, grant writing, capital programming, policy analysis, and transit operations. Ken has helped public agencies secure more than $270 million in competitive transportation grant funds across 13 awards for highway and transit projects, and he is experienced in developing detailed benefit-cost analyses. Prior to joining CS, Dr. White led RIDOT’s Office of Transit and Capital Programming, where he managed the state's $9 Billion STIP, coordinated the deployment of Rhode Island’s IIJA funds and programs, and represented RIDOT on the Northeast Corridor Commission (NECC). He received a Special Achievement in GIS Award in 2023 for his work developing map-based transportation planning tools. He holds a Ph.D. and Master's in Political Science from Brown University and dual Bachelor's degrees in Political Science and Economics, summa cum laude, from Union College.

Interests & Hobbies

Ken enjoys cooking, basketball, and exploring new restaurants with his wife, Allison, and their dog, Franklin.

Holly brings over 15 years of experience in financial planning and analysis, forecasting, business analysis, financial modeling, pricing, contract management, and contract compliance. Prior to joining CS, Holly served as the Director of Finance with Beth Israel Lahey Health where she led the Finance team for the Pharmacy company overseeing the Accounting, Revenue Cycle, and Financial Planning & Analysis teams. She also has experience working in the public consulting sector, previously working as the Director of Finance at Public Consulting Group.

Interests & Hobbies

Outside of work, Holly is a lover of fitness—you can often find her running, on her Peloton, or taking yoga and barre classes. When not working or working out, she volunteers for a local animal rescue and enjoys spending time with her husband, young daughter, and rescue pup Bella.

I work in traffic operations and I have been with CS for over three and half years. My work areas include transportation system management and operations (TSMO), intelligent transportation systems (ITS), traffic signal design and analysis, travel time analysis, traffic safety studies and transportation data analysis. I have been involved in diverse projects focused on areas such as integrated corridor management, managed lanes operations, connected and autonomous vehicles, DTA simulations etc. My simulation/intersection analysis skills include AIMSUN, VISSIM, TransModeler, VISTRO and SYNCHRO, spatial analysis skills include QGIS and ArcGIS, and my programming and analytical skills include Python, MATLAB, R Studio, Tableau and JMP.

Interests & Hobbies

My hobbies include playing and watching cricket and soccer; photography; watching movies; and travelling. I am a fun loving person and I like to make new friends.

Karl graduated from UC Berkeley in December 2020 with a Master of City Planning and MS in Transportation Engineering. During his graduate studies, Karl focused his research on micromobility policy and transit use and demand. Prior to that, Karl worked as an energy consultant for clients in New England and graduated from Bowdoin College in Maine.

Interests & Hobbies

Karl enjoys staying active in his free time by hiking, swimming, biking, and playing tennis.

Heath Lupton joined Cambridge Systematics as a Travel Demand Modeler with experience in data analytics and travel demand modeling practices. Heath also has experience in transportation planning and is proficient in QGIS, ArcGIS, R, and Python.

Michael holds a Master's Degree in City Planning and Policy from the University of Pennsylvania, with previous degrees in Urban Studies and Landscape Design and Planning from the University of Minnesota. He has worked on and has interest in multimodal transportation, equitable and sustainable transportation systems, and data and geospatial analysis.

Interests & Hobbies

In his free time, Michael enjoys exploring the city of Chicago, whether by biking its streets, trying new restaurants, enjoying its parks, or attending its concerts and movies.

Sha’Von R. Terrell is an Analyst Jr. II (Senior Professional) with Cambridge Systematics, Inc. (CS) who holds seven years of industry experience and a master’s degree in City and Regional Planning from Morgan State University. Sha’Von has technical skills in project management, fundraising, grant-writing, geographic information systems (GIS), and public speaking and presentations. Sha’Von also brings a variety of competencies such as fostering community partnerships, creating engaging alliances within the historically marginalized communities as well as building and preserving relationships across sectors of nonprofit, Government, and faith institutions.

Interests & Hobbies

Sha'Von enjoys gardening, exploring local trails, and traveling. 

Mr. Ullah brings experience in transportation planning, travel demand modeling, forecasting and simulation, and several modeling software packages, including VOYAGER, TP+,TransCAD, EMME, VISUM and TRANPLAN. He also has experience in transit planning, freight forecasting, air quality analysis and integration between traffic and simulation models. Registered Professional Engineer in the state of Massachusetts.

Interests & Hobbies

Lives in Boston and enjoys watching movies and sports in his free time.

With nearly 15 years of experience in transportation finance, planning, and operations, Ms. Chapman assists clients in developing financial models to analyze operating costs, fee structures, and capital needs; assessing alternative revenue sources and regional economic impacts; as well as compiling financial assessments to ensure capital sources and/or operating funds match programmed uses.

Interests & Hobbies

Emma enjoys exploring Chicago's many neighborhoods by bike as well as riding new transit systems. She lives in Chicago with her husband, an architect and city planner, and their dog and cat.

Crystal brings 20 years of experience in transportation planning, traffic operations, and safety, which includes many years in the public sector. She has managed numerous traffic operations, traffic safety, and connected and autonomous vehicle readiness studies. She has also prepared highway safety studies to meet NHTSA requirements and contributes to Vision Zero Action Plans for multiple states.

Interests & Hobbies

In her free time, Crystal enjoys travelling and being involved in her kid's extracurricular activities