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

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.

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

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.

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Correlations Between Winter Severity, Road Conditions, and VTrans’ Snow and Ice Control Activities

Principal Investigators: Jonathon Dowds and James Sullivan

Project Sponsor: Vermont Agency of Transportation

This proposed project aims to quantify the interrelationships among 1) winter/storm severity, 2) SIC performance, and 3) SIC costs for the purpose of developing an implementation-ready tool suitable for estimating the cost of achieving the Agency’s SIC performance targets across a range of predicted weather conditions. 

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

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.

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

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.

Enhancing Intelligent Compaction with Passive Wireless Sensors

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.

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Evaluating Heterogeneity in Household Travel Response to Carbon Pricing: A Study Focusing on Small and Rural Communities

Principal Investigator: Gregory Rowangould

PROJECT SPONSOR: NATIONAL CENTER FOR SUSTAINABLE TRANSPORTATION

The aim of this research project is to collect new information about household travel behavior, how households may respond to increased transportation fuel costs, and information about real and perceived barriers to avoiding higher transportation fuel costs in diverse rural communities.

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Evaluation of Travel Constraints and Travel Burdens in the U.S. and in Rural Zero-Car Households

Principal Investigator: Dana Rowangould

Project Sponsor: National Center for Sustainable Transportation

The research team will evaluate travel burdens in constrained populations in the US using self-reported and inferred data from a large US survey.

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High Performance Concrete with Post-Tensioning Shrinking Fibers

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.

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I-89 2050 Study

Principal Investigator: James Sullivan

Project Sponsor: VHB

This study conducts a comprehensive evaluation of the Interstate 89 corridor through Chittenden County out to a design horizon year of 2050 and develop a suite of policy, planning, and infrastructure recommendations that align with stakeholder-identified Vision, Goals, and Objectives for the corridor.

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

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.

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

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.

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Modeling Electric Vehicle Charging Scenarios for New York and New England

Principal Investigator: Jonathon Dowds

Project Sponsor: National Center for Sustainable Transportation

This project aims to utilize detailed travel behavior data to calculate time-specific regional demand for electric vehicle charging, specifically for the New York/New England region.

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Synthesis of Technical Requirements and Considerations for an Automated Snowplow Route Optimization

Principal Investigators: Jonathan Dowds and James Sullivan

Project Sponsor: Clear Roads National Research Consortium

This project will provide a list of technical requirements/considerations with standardized contract language for each technical requirements and a complementary, non-technical, decision-support document explaining why each requirement is important and how it impacts route optimization contract deliverables

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The Future of Rural Transit: Combining and Electrifying School and Public Transportation

Project Team: Peggy O'Neill-Vivanco, Cara Robecheck, Justine Sears, and Jennifer Wallace-Brodeur

Project Sponsors: Energy Action Network and Vermont Agency of Transportation

The project team will research and design a pilot to purchase and deploy small electric buses to serve 1-2 of Vermont’s rural school systems and their surrounding communities. The project will also include a detailed study to assess the opportunities and barriers of combining services: evaluating right-sizing vehicles, optimal service routes, and fleet sizes, all while drawing from fleet electrification experiences in Vermont and other states.

The Vermont Travel Model: Year 13 (2020-2021)

Principal Investigator: James Sullivan

Project Sponsor: Vermont Agency of Transportation

The statewide travel-demand model to addresses key traffic, regional travel, and policy questions for a variety of stakeholders. The work planned for Year 13 of this project includes effort to continue the improvement of the Model functionality, accuracy, and effectiveness, building on its base-year of 2010.

Addressing Local, State and National Needs

The TRC’s current research portfolio covers a wide range of transportation topics while focusing on sustainability and equity. Our research is made possible with funding from federal, state and local governments, NGOs, and private gifts.