Ongoing Study Seeks to Improve Hot-Mix Asphalt Performance

Published April 1, 2017

In an ongoing effort to maximize performance of hot-mix asphalt (HMA) containing higher amounts of recycled materials, IDOT and ICT started a project called Construction and Performance Monitoring of Various Asphalt Mixes (R27-161) in 2014. A second interim report on the project was recently published, and work continues on the project. This effort is part of a larger goal of improving pavements made from recycled materials and enhancing the sustainability of asphalt pavement.Read More

Speed Harmonization: ICT Research Helps IDOT Improve Safety on Rural Roadways

Published April 1, 2017

Current geometric design of roadway elements is based primarily on the design speed. The design speed is used by roadway engineers to design appropriate safety elements such as vertical and horizontal curves, stopping sight distance, and guardrail needs. On rural highways, operating speed is often higher than the design speed, which may become problematic from a safety standpoint. In rural settings, there are also more free-flowing traffic conditions with limited enforcement opportunities. These circumstances often lead to increased crashes.Read More

103rd Annual THE Conference

Published April 1, 2017

The 103rd annual Illinois Transportation and Highway Engineering (THE) Conference was held at the University of Illinois at Urbana-Champaign February 28–March 1, 2017, at the Illini Union. With more than a thousand industry professionals in attendance, the two-day conference covered a wide variety of topics, including preparing roadways for autonomous vehicles, expansive cements for bridge construction, work zone safety and traffic management, and speed harmonization of local roads and streets.Read More