2 panel banner. On the left, 2 people in safety gear work on the underside of a bridge. On the right, bridge construction

TRC research evaluates how to increase the safety and resilience of transportation systems and infrastructure while seeking strategies to better address on-going maintenance needs.

A new method of determining payment for in-place concrete with double-bounded compressive strength pay factors

a sideview of the bottom of a bridge over water

Principal Investigators: James Sullivan

Co-investigators: David Novak, and Eric Hernandez

Project Sponsor: Transportation Infrastructure Durability Center

The goal of this project is to develop a new method of enforcing pay factors for payment of in-place CCS that does not rely on the Gaussian distribution and allows for the use of asymmetrical set of pay factors.

 

Bridge-stream network assessment to identify sensitive structural, hydraulic and landscape parameters for planning flood mitigation

a head on view of a bridge

Principal Investigator: Mandar Dewoolkar

Co-investigators: Donna Rizzo and Arne Bomblies

Project Sponsor: Transportation Infrastructure Durability Center

This project will develop an analysis method to understand how localized changes at a given bridge, stream or road affect the entire river corridor. This will help transportation agencies in managing their bridge and stream assets for maintenance and capital planning for upgrades, and also address stakeholder concerns raised in response to planned alterations. 

 

Cool and Sustainable Sidewalks

a tree-lined sidewalk with a vehicles in the background

Principal Investigator: Gregory Rowangould

ProjecCo-Investigators: Brittany Antonczak, Claude Morelli, Mahmoud Taha, Moneeb Genedy, Stephen Montano, Patience Rabyt

Sponsor: EPA

Our technical challenge is to design a sidewalk that can be built using recycled and less energy- and carbon-intensive materials with the thinnest possible thickness, to reduce material use and limit heat storage capacity. By revisiting the materials and techniques that cities and towns use to build sidewalks, we believe it is possible to identify more durable, environmentally sustainable and cost-effective approaches than are commonly used today.

 

Development of a System-Level Distributed Sensing Technique for Long-Term Monitoring of Concrete and Composite Bridges

wide view of a composite bridge over a large span of water

Principal Investigator: Tzuyang Yu

Co-investigators: Susan Faraji, Xingwei Wang, Zhu Mao, Ehsan Ghazafari and Bill Davids

Project Sponsor: Transportation Infrastructure Durability Center

In this project, Brillouin Optical Time Domain Reflectometer (BOTDR) technique has been adopted for distributed sensing of mechanical and thermal strains of bridges.

 

Enhancing Intelligent Compaction with Passive Wireless Sensors

wide angle of a small downtown area

Principal Investigator: Eshan Ghazanfari

Co-investigator: Hamid Ossareh

Project Sponsor: Transportation Infrastructure Durability Center

In this project, the authors aim to improve the Intelligent Compaction (IC) performance and facilitate the process of geomaterial compaction and pavement performance monitoring by integration of passive sensing system with IC.

 

Effectiveness of Rectangular Rapid Flashing Beacons (RRFBs) at Mid-Block Crosswalks

a tree-lined street with a person crossing a crosswalk in the foreground

Principal Investigators: James Sullivan and Dana Rowangould

Project Sponsor: Vermont Agency of Transportation

Mid-block crossings represent an opportunity to improve pedestrian travel, but require a better understanding of their effects on pedestrian safety and the behavior of pedestrians, cyclists, and drivers. The purpose of this research is to evaluate how effective RRFBs are relative to traditional mid-block crosswalks. .

Evaluating the Contribution of Paved Surfaces to Intra-Urban Heat in Small Communities

an aerial view of a small downtown

Principal Investigator: Brittany Antończak

Project Sponsors: University of Vermont and Federal Highway Administration

This research will evaluate how paved surfaces affect surface and canopy layer air temperatures in smaller communities in Vermont and estimate population exposure to intra-urban heat caused by the presence of paved surfaces in each community type.

 

Evaluation of processed glass aggregate for utilization in transportation projects as a sand borrow

aerial view of a tree lined bike path with a cyclist

Project Sponsor: Transportation Infrastructure Durability Center

The overarching goal of this project is to catalyze the use of Processed Glass Aggregate (PGA) as a substitute for increasingly scarce sand borrow material in transportation projects in Vermont, in New England, and beyond. 

 

High Performance Concrete with Post-Tensioning Shrinking Fibers

Winooski Falls

Principal Investigator: Dryver Houston

Project Sponsor: Transportation Infrastructure Durability Center

This research improves upon the technique of reinforcing concrete with dispersed fibers by having the fibers axially shrink after curing to produce a dispersed multi-axial post-tensioned state. Such reinforcing has the potential to increase the crack resistance and durability of the concrete.

 

Intelligent Transportation Systems Professional Capacity Building

Principal Investigator: Glenn McRae

Project Sponsor: USDOT/VOLPE National Transportation Systems Center

The goal of this project is to support the development of academic resources and career pathway tools to address the emerging and future needs of the workforce to support intelligent transportation systems.

 

Investigating the Effectiveness of Enzymatic Stabilizers for Reclaimed Stabilized Base Projects

aerial view of a parking lot in a small downtown

Principal Investigators: Ehsan Ghazanfari and Mandar Dewoolkar

Project Sponsor: Transportation Infrastructure Durability Center

The overarching goal of this project is to evaluate the effectiveness of enzymatic stabilizers in Reclaimed Stabilized Base (RSB) projects in Vermont and the Northeast region. 

 

Leveraging High-Resolution LiDAR and Stream Geomorphic Assessment Datasets to Expand Regional Hydraulic Geometry Curves for Vermont: A Blueprint for New England States

tree lined rural road

Principal Investigator: Kristin Underwood

Co-investigators: Arne Bomblies and Donna Rizzo

Project Sponsor: Transportation Infrastructure Durability Center

Regional hydraulic geometry curves for Vermont and surrounding portions of New England states will be updated through consideration of additional observations, and through application of advanced statistical techniques that leverage newly-available high-resolution LiDAR and stream geomorphic assessment data.

 

Measuring Adhesion Between Binders and Aggregates Using Particle Probe Scanning Force Microscopy at Low Temperatures

an empty road with snow and trees on the side, and mountains in the background

Principal Investigator: Ting Tan

Project Sponsor: Transportation Infrastructure Durability Center

This project will measure adhesion between plain binders and aggregate minerals at low temperatures, and measure adhesion between modified binders and aggregate minerals at low temperatures.

 

Performance Structural Concrete Optimized for Cost, Durability and Manufacturability

a person walks on a sidewalk next to a graffiti-ed building

Principal Investigators: Dryver Huston and Ting Tan

Project Sponsor: Transportation Infrastructure Durability Center

The primary goal is to develop concrete mix designs that meet modern high-performance durability requirements while being practical to manufacture with New England-sourced materials and suppliers.

 

Value of VTrans Research: Qualitative and Quantitative Analysis

Principal Investigators: Jonathan Dowds & Gregory Rowangould

Project Sponsor: Vermont Agency of Transportation 

The purpose of this research is to improve the Agency’s ability to assess the value of external research projects with a specific focus on developing and demonstrating a qualitative assessment strategy that can be applied to all research projects.