Conglong (Vicky) Yu, a senior traffic engineer and project manager for T3, conducted a presentation on April 25, 2017, at the ITE Mid-Colonial Annual Conference held in Baltimore, Maryland. As part of the technical program devoted to Diverging Diamond Interchange (DDI) projects, Vicky shared her experience and insights in managing the traffic effort for the I-66/US Route 15 DDI Project in Haymarket, Virginia. This VDOT design-build project was awarded to The Lane Construction Corporation, with Rinker Design Associates, PC as the lead design firm and T3 performing traffic analysis and signal design activities as a subconsultant.

Vicky described the modeling and analysis completed by the T3 team to show the safety and operational benefits of a DDI at this location, compared to the previously preferred alternative, and she demonstrated its ultimate configuration via an animated video created by T3. She also outlined the activities completed, project progress and schedule, as well as remaining construction and expected completion date.

A description of the project can be found on our website at this location: http://www.t3design.us/news-corporation/2017/3/20/i-66-at-us-route-15-diverging-diamond-interchange-ddi-grand-opening