Ohio LTAP and Ohio DOT (ODOT) are hosting a free 1-hour webinar titled "Investigation of Pavement Performance in Historically Under-Performing Regions" to explore the reasons for pavement performance issues in certain regions.

Over the last couple decades, ODOT has experienced pavement performance that significantly underperforms statewide averages in some regions, believed to be caused by poor-quality aggregate sources. ODOT’s District 3 has experienced the worst historical performance, but other districts in the region experienced similar issues as well. Additionally, many counties adjacent to District 3 experience lower performance that's masked when looking at district-wide performance.

There have also been complaints of early raveling that may be linked to the same issue. These may be exacerbated by other factors such as design practices, poor-quality control, poor construction practices, lack of proper inspection, lack of proper QA, etc.

Ohio has very different geology across the state, and certain Districts only utilize the local materials within their region. Current aggregate specifications need to be examined to determine their contribution. As noted below, ODOT has studied these issues in the past and implemented changes that have not resulted in the desired outcome.

Due to the cost of pavement performance loss, further research is warranted to determine the root causes of regional issues and assess the cost/benefit of any potential changes to ODOT standards and specifications.

Research Objectives:

• Identify root causes of poor performance trends in Ohio
• Determine ODOT financial impact of performance loss
• Develop prioritization of root causes
• Recommend methods to eliminate root causes
• Consider how technology could mitigate root causes
• Develop cost-benefit analysis for each proposed approach
• Verify effectiveness of eliminating or controlling root causes
  
  

Register Here to Attend