t3design.us - Index

T3 has designed hundreds of traffic signals in the Virginia, Washington, D.C., and Maryland area. We specialize in upgrading existing signals and in designing new signals.

Click here for more information about our signal design services.

Safety and continuing education are important to us. All of T3 Design's transportation engineers have completed VDOT's certified Guardrail Inspector Training (GRIT).

Click here for more information about GRIT certification.


T3 Design Corporation is a woman-owned small business specializing in transportation planning, engineering, and operations. We take pride in providing safe and efficient transportation solutions for motorists, pedestrians, and bicyclists through meticulous studies, skillfully designed projects and expertly managed operations.

T3 on Winning Team: East Elden Street Widening
April 15, 2013