Research

Success


The problem:

With more than 35 million travelers annually and 200 directional miles under reconstruction, Central Texas’s I-35 corridor required safer, smarter ways to manage work zones and keep drivers informed.

Our approach:

TTI developed an integrated, automated system that consolidated closure schedules from multiple contractors, predicted traffic delays and delivered real-time updates via social media, texts and digital signs. Technologies included end-of-queue warnings, travel time signs, construction cameras and a dedicated traveler information platform.

The Outcome:

The system reduced nighttime crashes by 60% where EOQ systems were deployed, improved lane closure coordination and enhanced public awareness. Its success influenced statewide standards and drew international attention.

Aerial view of a multi-layer highway interchange with overpasses, cars, green grass, and trees surrounding the roads.
Electronic sign on roadside reads STOPPED TRAFFIC 2 MILES with a semi-truck passing by and orange traffic barrels positioned nearby.

For more information:

Robert Brydia

TTI Senior Research Scientist
Division Head