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    • Administration
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  • Services
    • Traffic & Transportation Studies
    • Parking Studies & Design
    • Site Access & Circulation
    • Transportation Modeling – VISSIM
    • Traffic Signal Design
    • Data Collection
    • Speed Studies
    • Traffic Control Plans
    • Transportation Demand Management
  • Featured Projects
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Team

Chris Tacinelli, PE
President & CEO
Senior Principal
Chad Baird
Vice President
Senior Principal
Dan VanPelt, PE, PTOE
Vice President
Senior Principal
Erwin Andres, PE
Vice President
Senior Principal
Tushar Awar, PE, PTOE
Vice President
Senior Principal
Kevin Sitzman, PE
Vice President
Principal

“Trammel Crow Company has had the pleasure of working with GS on a variety of projects throughout the District of Columbia. In that time, they have proven to be a diligent and creative team to work with, producing high-quality analysis and results on time and within budget.”

— Trammel Crow Company
Featured Project
Bradley Square

Bradley Square is a town home development located on the former site of the Old Dominion Speedway in Prince William County,… Read more »

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E-mail: [email protected]
SWaM certified as a small business in Virginia

Corporate Headquarters
4114 Legato Road
Suite 650
Fairfax, VA 22033
Tel: (703) 787-9595
Alexandria, VA
225 Reinekers Lane
Suite 750
Alexandria, VA 22314
Tel: (703) 721-3044
Bethesda, MD
4550 Montgomery Avenue
Suite 400
Bethesda, MD 20814
Tel: (301) 708-3061
Richmond, VA
4951 Lake Brook Drive
Suite 250
Glen Allen, VA 23060
Tel: (804) 362-0578
Washington, DC
1140 Connecticut Ave NW
Suite 1010
Washington, DC 20036
Tel: (202) 296-8625
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