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Articles 1 - 10 of 10
Full-Text Articles in Engineering
Policy Brief: Mode Constrained Travel At Uvm: Travel Preferences, Barriers, And Policy Implications, Sierra Emma-Leigh Espeland, Dana Rowangould
Policy Brief: Mode Constrained Travel At Uvm: Travel Preferences, Barriers, And Policy Implications, Sierra Emma-Leigh Espeland, Dana Rowangould
University of Vermont Transportation Research Center
One of the objectives of the Chittenden Area Transportation Management Association (CATMA) is to encourage commuters to shift from driving to more sustainable travel modes such as walking, bicycling, and public transit. To understand barriers to switching to greener modes among UVM employees, we evaluated CATMA’s 2019 Transportation Survey to compare the modes that UVM employees currently use to the modes that they prefer to use. We also identify barriers to switching to preferred travel modes. The results show untapped potential for divesting from driving, with respondents citing several mitigatable barriers.
Ccrpc Bicycle Count Data Analysis And Count Program Design Strategies, Gregory Rowangould, Eliana Fox, Rose O'Brien, Julia Clarke
Ccrpc Bicycle Count Data Analysis And Count Program Design Strategies, Gregory Rowangould, Eliana Fox, Rose O'Brien, Julia Clarke
University of Vermont Transportation Research Center
In 2017, the Chittenden County Regional Planning Commission (CCRPC) completed the most recent update of the region’s Active Transportation Plan (ATP) with the goal of creating “a safe, comfortable, and connected regional network of pedestrian and bicycle routes that appeal to all ages and abilities”. Developing a “robust” bicycle count program was one of the key non-infrastructure recommendations in the ATP (CCRPC, 2017). The UVM Transportation Research Center (“TRC”) was contracted to evaluate current bicycle data collection efforts in the region, identify gaps and limitations and make recommendations on how to develop a comprehensive bicycle count program that could better …
Data-Driven Analysis Of Rural Equity And Cost Concerns For Mileage-Based User Fees In Vermont, Clare Nelson, Gregory Rowangould
Data-Driven Analysis Of Rural Equity And Cost Concerns For Mileage-Based User Fees In Vermont, Clare Nelson, Gregory Rowangould
University of Vermont Transportation Research Center
Examining substitutes to the current state and federal gasoline and diesel fuel excise taxes has become a pressing issue, exacerbated by the rise of high efficiency and alternative fuel vehicles threatening the revenue generating capacity of these taxes. A mileage-based user fee has been frequently proposed in the literature as an alternative which would offer greater benefits to rural and low-income populations than to urban and higher income populations. However, most prior analyses relied on small data sets and aggregated data. This study examined the impact of replacing the Vermont state fuels tax with a revenue-neutral mileage-based user fee using …
Characterization Of Effects Of Electric And Acoustic Fields On Fouling During Microfiltration Experiments, Yuxiang Shen
Characterization Of Effects Of Electric And Acoustic Fields On Fouling During Microfiltration Experiments, Yuxiang Shen
Graduate College Dissertations and Theses
Membrane processes have been a promising purification and separation technique as it can potentially remove any ions, particles, and colloids by size selection. Membrane processes are still limitedly used in the real-world industrial application due to its relatively cost prohibitive maintenance and operation, which is attributed to membrane fouling and concentration polarization under pressurized conditions. To improve the efficiency of membrane filtration, alternatives to the traditional cleaning methods have been investigated to mitigate the fouling and concentration polarization problems. Among the alternatives, application of an external field, e.g., electric field or acoustic field, to the mitigate fouling during membrane filtration …
A Holistic Approach To River Restoration Design And Conservation Planning On The Reach And Basin Scales Using Hydraulic Modeling And Multi-Objective Optimization Tools, Lindsay Courtney Worley
A Holistic Approach To River Restoration Design And Conservation Planning On The Reach And Basin Scales Using Hydraulic Modeling And Multi-Objective Optimization Tools, Lindsay Courtney Worley
Graduate College Dissertations and Theses
Flooding events around the world cost billions (USD) in damages each year. For decades, engineers have combated flood related damages by implementing flood mitigation controls such as channelization, levees or berms, and armoring. Recent advances in the study of river dynamics, however, have challenged the efficacy of these traditional flood mitigation techniques and pose that these structures are disconnecting channels from their floodplains, increasing flow rates, and contributing to more erosion. The effects of climate change combined with future predictions of increased storm frequency and intensity make it necessary to revise flood hazard mitigation strategies. A more nature-based alternative to …
Development Of Protocols For Determining Deleterious Material Content In Crushed Recycled Glass, Fiona Nutbeam
Development Of Protocols For Determining Deleterious Material Content In Crushed Recycled Glass, Fiona Nutbeam
Graduate College Dissertations and Theses
Glass recycling appears to be a viable way to reduce waste; however, there are many challenges to ensuring the recycled product has an economically and environmentally sustainable end use. Cleaning recycled glass to a standard that allows it to be melted down into new glass is extremely difficult when single-stream recycling is in practice. The recycled glass that is not melted down is processed into different materials, such as processed glass aggregate (PGA). As states implement bans on landfilling recyclable materials (e.g., Act 148 in Vermont), additional uses for PGA are needed. In New England, there are diminishing sources of …
Quantifying Correlations Between Winter Severity, Road Conditions, And Vtrans' Snow And Ice Control Activities: Final Report, Jonathan Dowds, James Sullivan, Mitchell Robinson
Quantifying Correlations Between Winter Severity, Road Conditions, And Vtrans' Snow And Ice Control Activities: Final Report, Jonathan Dowds, James Sullivan, Mitchell Robinson
University of Vermont Transportation Research Center
Season-to-season variability in winter weather and the absence of quantifiable methods for measuring either winter severity or snow and ice control (SIC) performance have made planning and budgeting for SIC activities challenging. Recent research initiatives undertaken by VTrans and other snowbelt DOTs have established objective measures for weather severity and SIC effectiveness, creating the opportunity to quantify the relationships among winter severity, SIC costs, and SIC performance. For this project, the research team utilized these recently established severity measures and VTrans SIC cost data from the MATS database to develop a cost estimation tool that projects expected SIC costs for …
Comparing Travel Behavior And Opportunities To Increase Transportation Sustainability In Small Cities, Towns And Rural Communities, Erica Quallen, Julia Clarke, Clare Nelson, Gregory Rowangould
Comparing Travel Behavior And Opportunities To Increase Transportation Sustainability In Small Cities, Towns And Rural Communities, Erica Quallen, Julia Clarke, Clare Nelson, Gregory Rowangould
University of Vermont Transportation Research Center
The vast majority of travel behavior and sustainable transportation research has focused on urban areas. A rural perspective is lacking. This paper aims to dive deeper into understanding how people travel and their perceptions and opinions about various components of travel in a majority rural state. By speaking directly with Vermonters through in-person interviews, uniquely personal points of view were discovered and analyzed to find commonalities and differences between urban, suburban, and rural Vermonters. Questions on day-to-day challenges of traveling, suggestions for reducing greenhouse gas emissions, responses to fuel prices, and opinions on electric vehicles were asked. Some key findings …
Exploring Mycorrhizae In Riparian Restoration To Enhance Phosphorus Mitigation And Pollinator Habitat On Unceded Territory, Jessica Ann Rubin
Exploring Mycorrhizae In Riparian Restoration To Enhance Phosphorus Mitigation And Pollinator Habitat On Unceded Territory, Jessica Ann Rubin
Graduate College Dissertations and Theses
When land degradation imperils freshwater quality, land managers can restore ecosystem functions. The premise of three published/accepted thesis chapters is that mycorrhizae can enhance water quality function of riparian buffers and pollinator habitat through diverse, native polyculture associations.
Where water quality is threatened through excess phosphorus (P) loads from agriculture, riparian buffers are considered Best Management Practices (BMPs). They intercept agricultural nutrients before reaching waterways. However, their seasonal cycles, saturation capacity, and often degraded conditions limit their ability to protect water quality. In particular, riparian buffers can transition from sinks to sources of P when agricultural practices chronically contribute P, …
Travel Behavior, Responses To Fuel Prices, And Barriers To Change In Small And Rural Communities, Erica Quallen
Travel Behavior, Responses To Fuel Prices, And Barriers To Change In Small And Rural Communities, Erica Quallen
Graduate College Dissertations and Theses
Travel behavior and the factors which drive it in small and rural communities has been historically understudied in transportation research. By understanding these factors and behaviors, a clearer picture of these regions can be drawn so that meaningful change towards greenhouse gas reductions can be realized. My research aims to examine barriers to making sustainable travel behavior changes such as using multi-modal transportation, reducing overall amounts of travel, or moving to locations closer to necessary services. I do this by first evaluating what “rural” means in terms of existing definitions of the term. The assessment of rural definitions analyzes vehicle …