Our Leadership

Our innovative and experienced practice leaders bring unique public and private sector insights and fresh ideas to help deliver innovative infrastructure solutions.

Director of Planning

Brad Strader, AICP

Director of Traffic Operations & ITS

Paul Slone, PE, PTOE

Managing Principal

Barbara Arens, PE, PTOE

Managing Partner

Adiele Nwankwo, Ph.D.

Senior Human Resource Consultant

Tracey Bessellieu

Director, Mobility & Urban Development

Andrea Foard, AICP, LEED AP

Director of Traffic Operations & ITS

Lauren Warren, PE, PTOE, PMP

Senior Engineering Manager

Victor Alao, PE 

Analytics GIS Manager

Tina Roberts

Adiele is a strategic thought leader and a national program management advisor, with decades of public and private sector experience in infrastructure planning, project development and management services. He is actively engaged in several projects involving organizational, management and performance assessments of transportation departments and infrastructure delivery programs. He serves as coach and mentor to infrastructure executives and partners with clients to develop and implement Diversity, Equity, and Inclusion programs.  

Adiele has a reputation as the client’s advocate, with a focus on overcoming barriers to ensure effective and efficient program outcomes. A committed servant-leader, he directed a global infrastructure firm’s regional business operation of 16 states and 26 offices. Adiele is engaged in several volunteer and non-profit initiatives, ranging from chairing a mayoral transportation transition team to working with key local officials, business leaders and citizens to develop innovative transportation funding options to leading different initiatives to enhance people and infrastructure capacity building in Africa.

  • Strategic Planning
  • Program Management
  • Organizational and Performance Management
  • Diversity, Equity, and Inclusion
Adiele Nwankwo, Ph.D.
Managing Partner
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• Strategic Planning • Program Management • Organizational and Performance Management
• Diversity, Equity, and Inclusion

Focus Areas

Barbara’s 35-year career has focused on leading people and managing businesses in planning, design, and construction. Barb’s reputation as a client advocate and trusted advisor has enabled her to deliver outstanding results to clients in over 13 states on small to large projects and programs, as large as $1.7B in construction value. ​

Over the last 20 years, she has held management roles locally, regionally, and nationally. She was a Senior Vice President at a global engineering and planning firm, where she was the Central Region Business Manager responsible for 15 states and 13 offices. She also was a National Project Delivery Director where she led the reorganization and development of national project delivery processes and procedures and successfully trained staff on project management and organizational delivery. She is an authentic and passionate leader with a strong interest in developing emerging professionals. Barb continues to assist clients with program and project delivery, leading community engagement, and being a key advisor on complex projects to deliver for both clients and the public.

  • Program Management
  • Traffic Operations
  • Transportation Planning
  • Advisory
Barbara Arens, PE, PTOE
Managing Principal
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• Program Management • Traffic Operations • Transportation Planning
• Advisory

Focus Areas

During Brad’s 40 years of experience, he has crafted Comprehensive Plans, district plans, corridor studies, and a wide variety of multi-modal transportation projects. Serving as an ongoing mobility advisor to several cities and agencies, he helped usher projects from concepts, through the public engagement and construction process, to create vibrant places and streets. He has been retained by over 95% of his clients for additional projects.

Brad is a frequent lecturer at state, regional and national conferences and webinars. He has also been a co-author or editor for several national best practice publications for the American Planning Association, Transportation Research Board and Institute of Transportation Engineers.

  • Multi-Modal Transportation Planning
  • Land Use Planning and Zoning
  • Community Engagement
  • Downtown Revitalization
Bradley Strader, AICP
Director of Planning
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• Strategic Planning • Program Management • Organizational and Performance Management
• Diversity, Equity, and Inclusion

Focus Areas

Andrea is an AICP-certified professional planner with over 15 years of progressive experience in program and project management; she is adept in the successful and timely delivery of transportation, transit, and environmental projects. Andrea is a recognized impact leader with the ability to move projects from planning to implementation and creative in combining engineering and planning skills on all levels of project development; from planning and public involvement to design and construction; to effectively coordinate and integrate various disciplines, manage project issues, and reconcile the needs of diverse set of stakeholders, ensuring that projects are completed on time and under budget, thereby advancing client’s objectives.  

She is experienced in managing staff, scope, schedule, budgets, and subconsultants, as well as, contract administration, developing transit operations studies, NEPA coordination and documentation, project communications, and stakeholder and public engagement strategy development and implementation. Andrea is people-oriented and engaging; enthusiastic about teamwork and interaction in professional and volunteer environments. 

  • Planning 
  • Transit
  • Environmental 
  • Transit Oriented Development (TOD)
Andrea Foard, AICP, LEED AP
Director, Mobility & Urban Development
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• Planning • Transit • Environmental
• Transit Oriented Development (TOD)

Focus Areas

Lauren Warren is a results-driven project and engineering manager with demonstrated success in building teams that deliver exceptional services for clients. Lauren’s project experience covers all facets of transportation planning, operations and engineering including simulation modeling, calibration and signal optimization, interchange studies, traffic impact studies, traffic signal and ADA design, safety studies/audits, non-motorized planning and design, and work zone mobility/maintenance of traffic.

Lauren also holds certification as a Project Management Professional (PMP) enhancing her engineering, planning, and project management skillset. She serves as Secretary on the Board for the WTS Michigan Chapter and is a graduate of the WTS International Mid-Career Signature Leadership Program. Lauren has a passion for community service and enjoys giving of her time and talents.

  • Traffic Planning
  • Traffic Operations
  • Safety
  • Signal Design
Lauren Warren, PE, PTOE, PMP
Director of Traffic Operations & ITS
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• Traffic Planning • Traffic Operations
• Safety 
• Signal Design

Focus Areas

With 31 years of dedicated experience in the Southeast, Paul is a subject matter expert in traffic operations. He initiated his career in the public sector, contributing significantly to the establishment of a statewide program in Kentucky for coordinated signal systems, with notable installations in Louisville and Lexington. Paul excels in on-street operations, specializing in the analysis, optimization, and programming of traffic signals.

His extensive background spans nine states, encompassing corridor studies, area-wide transportation studies, traffic forecasts, design alternatives analysis, traffic impact studies, innovative intersection design, roundabout design and analysis, specification writing and standard drawings, as well as operational and safety improvement projects. He is familiar with the practices and policies of several state departments of transportation, metropolitan planning organization (MPO) operations, and transportation funding. Paul's wealth of experience uniquely positions him to tackle diverse engineering challenges, further solidifying our ability to deliver innovation and comprehensive expertise.

  • Traffic Operations
  • Innovative Intersection Design
  • Operational & Safety Improvement Projects
  • ITS Design and Specifications
Paul Slone, PE, PTOE
Director of Traffic Operations & ITS
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• Planning • Transit • Environmental
• Transit Oriented Development (TOD)

Focus Areas

Victor Alao is an experienced program/construction manager with over 40 years in the management and delivery of all phases of transportation and environmental projects, from planning through construction. He has worked with several state and municipal DOTs as a seasoned roadway designer and construction manager to deliver complex transportation projects across the Midwest. He helps clients achieve their transportation project design objectives with phased structured review and proactive identification of flaws that may impede project implementation. 

Victor partners with clients to develop creative solutions to design and construction projects to achieve context sensitive designs, sustainability, cost efficiencies, equity, and community buy-in. His strong leadership, management skills, and design expertise in finding innovative ways to resolve problems on projects, are valuable key points for stakeholders trying to avoid delays and cost overrun amid tight budgetary constraints. Victor is a licensed Professional Engineer in seven states and a Member of the American Society of Civil Engineers.

  • Construction Management
  • Design Engineering
  • Advisory
  • Program Management
Victor Alao, PE
Senior Engineering Manager
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• Construction Management • Design Engineering • Advisory • Program Management

Focus Areas

Tina Roberts is a proven industry-leading systems manager and GIS innovator, with 20 years of experience in both the public and private sectors. Tina is recognized as an insightful problem solver and effective communicator successfully implementing advanced GIS applications that have updated, modernized, and streamlined workflows for a variety of government agencies including local, county, regional, and transit organizations. Incorporating multiple data platforms into a unified system as the principal contributor for the southeast Michigan region and statewide transportation GIS data model. Tina promotes ESRI Best Practice standards in application initiatives that advance business culture standards by developing flexible alternatives based on a wide scope of end-user needs and desired products.

  • GIS Data Management
  • Application Integration
  • Asset Management
  • Data Analytics
Tina Roberts
Analytics GIS Manager
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• Executive Coaching • Diversity, Equity, and Inclusion • Talent Management Strategy • Organizational Development

Focus Areas

Tracey Bessellieu is a strategic business professional partnering with executive leaders to develop human capital strategies, exceptionally self-driven and decisive professional who provides strategic leadership and consultation for human capital and business challenges that impact organizations culture and performance.​

She has held senior roles managing human resources teams around the world, resulting in strong business outcomes. She is a certified workplace assessment provider; coaching and partnering with executive professionals who lead local, national, and global organizations in developing personal action plans and common goals for their organizations. Tracey’s underpinning philosophy, that is applied to all business solutions, is to consider the implications of the future world of work and its intersectionality with valuing diversity, equity, and inclusion.

  • Executive Coaching
  • Diversity, Equity, and Inclusion
  • Talent Management Strategy
  • Organizational Development
Tracey Bessellieu
Senior Human Resource Consultant
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• Executive Coaching • Diversity, Equity, and Inclusion • Talent Management Strategy • Organizational Development

Focus Areas