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Team

Armin Hajdar
Transportation Designer
Brandon Zhang, PE, PTOE, PhD
Project Transportation Engineer
Caleb Smith
Associate
Senior Transportation Designer
Lorraine Tacinelli, PE
Associate
Project Transportation Engineer
Sam Tignor, PE
Associate
Project Transportation Engineer

“The teams I have had the pleasure to work with are always responsive – answering questions and turning out high quality work, often under tight deadlines. Projects conclude on time and on budget.”

— Amy Phillips, Monument Realty
Featured Project
Fairfax County Public Safety Headquarters

Fairfax County’s new Public Safety Headquarters is a nine-story building with future public access from Government Center Parkway and frontage on… Read more »

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

Corporate Headquarters
3914 Centreville Road
Suite 330
Chantilly, VA 20151
Tel: (703) 787-9595
Fax: (703) 787-9905
Washington, DC
1140 Connecticut Ave NW
Suite 600
Washington, DC 20036
Tel: (202) 296-8625
Fax: (202) 785-1276
Alexandria, VA
225 Reinekers Lane
Suite 750
Alexandria, VA 22314
Tel: (703) 721-3044
Fax: (202) 785-1276
Haymarket, VA
15125 Washington Street
Suite 212
Haymarket, VA 20169
Tel: (571) 248-0992
Fax: (703) 787-9905
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