New Project: Evaluating the Performance of Geosynthetic Materials for Montana DOT

Geosynthetic materials are routinely used in transportation applications to facilitate construction, improve stability, and enhance longevity. Departments of transportation have generally had good experience with these products, although a robust and non-proprietary design process for geosynthetic reinforced paved roads is still lacking. The Montana Department of Transportation (MDT) believes that geosynthetics can be used responsibly to provide cost-savings on a number of upcoming highway construction projects in the state, based on their in-house experience as well as previous research and evaluation by WTI. MDT desires experimental evidence of performance for these typical projects in order to proceed with future designs.

Principal Investigator Steve Perkins is leading a new study to conduct full-scale indoor testing of reinforced pavement test sections using a traffic simulator to provide performance data and to evaluate a spreadsheet-based design tool that can be used to augment current design procedures.  The results from this study can be directly implemented into future MDT highway construction designs having similar conditions to the test sections. These recommendations will pertain most directly to operational conditions where a stable construction platform is established over relatively weak subgrade when it is advantageous to reduce base course thickness in order to save both time and money.

To follow this project, visit its webpage on the WTI website.

New Project: Developing a Severe Weather Index for Maryland DOT

A challenge that many state DOTs face is the accurate assessment of winter maintenance operations. One tool that has been successfully used by DOTs is the severe weather index (SWI), which can assess the performance and related costs associated with winter maintenance operations.  It considers the relative severity of each weather event, and relative severity of weather for that season.

Principal Investigator Laura Fay is leading a new project to develop a severe weather index for Maryland DOT by region, Maintenance Shop, and winter storm event.  Maryland DOT can use the  SWI to determine if costs incurred during each event and winter are reasonable, as well as if the resources deployed and contracted amounts are also within reason.

To follow this project, visit its webpage on the WTI website.

Marcel Huijser Presents at Two Western Wildlife Forums

Marcel Huijser

WTI Research Scientist Marcel Huijser was on the road in February, speaking at two major regional wildlife events in Colorado and California.  On February 8, he was invited to give the keynote address (“Road Ecology, are we taking the right turns?”) at the 2018 Annual Meeting of the Colorado Chapter of the Wildlife Society.  On February 21, he spoke at the “Bridges and Biology” workshop hosted by the California Department of Transportation, the California Department of Fish and Wildlife, and the National Oceanic and Atmospheric Administration (NOAA). At this event, Marcel led a workshop session called “National and International Perspectives,” which focused on wildlife usage of crossing structures, including how to increase their effectiveness.


To learn more about Marcel’s research, visit the Road Ecology webpage.