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Articles 1 - 7 of 7
Full-Text Articles in Urban Studies and Planning
Rescaling Air Quality Management: An Assessment Of Local Air Quality Authorities In The United States, Kelsea A. Schumacher, Vivek Shandas
Rescaling Air Quality Management: An Assessment Of Local Air Quality Authorities In The United States, Kelsea A. Schumacher, Vivek Shandas
Urban Studies and Planning Faculty Publications and Presentations
Institutional design for local air quality management is an underdeveloped area for research and practice. Although the United States has more than a century of organizational experience managing air quality at the Federal level, the recent years have seen a surge of interest in addressing municipal-scale solutions. Without information about the institutional designs, governance structures, and implications of localizing air quality management, practitioners may face challenges reducing population exposure to air pollutants. We offer a US national perspective on managing local air quality by assessing and surveying 117 local air quality authorities identified by the National Association of Clean Air …
Effect Of Light-Rail Transit On Traffic In A Travel Corridor, Reid Ewing, Guang Tian, Allison Spain
Effect Of Light-Rail Transit On Traffic In A Travel Corridor, Reid Ewing, Guang Tian, Allison Spain
TREC Final Reports
This study seeks to quantify the effect of the University TRAX light-rail line on traffic near the University of Utah, providing quantitative data that can be used to shape future transportation policies aimed at reducing traffic congestion, energy consumption, air pollution, greenhouse gas emissions, and parking costs. Travel demand models have long been used to estimate and evaluate the effects of transportation improvements, like LRT investments, on network travel flows and times as part of long-range planning studies, using four-step models or more sophisticated urban simulation studies. However, these are usually ex ante studies. Few ex post evaluations have been …
The Development Of Low-/No-Emission Electric Vehicle Infrastructure In The Portland Metro Region: A Roadmap, John Macarthur, Peter Murchie, George Beard
The Development Of Low-/No-Emission Electric Vehicle Infrastructure In The Portland Metro Region: A Roadmap, John Macarthur, Peter Murchie, George Beard
TREC Final Reports
The shift from combustion engines to low- and no-emission electric vehicles is underway and gaining momentum. During the last year, Oregon has become an active player in the electric vehicle arena, with a number of promising relationships and activities in the early stages of formalization. With additional thought, effort and strategy Oregon can seize the opportunity to become the national leader in the adoption and incorporation of new vehicle platforms and mobility strategies into the fabric of urban life and the built environment. Oregon is currently actively engaged in relationships with international automotive companies and local businesses and utilities interested …
Modeling The Impact Of Traffic Conditions On The Variability Of Mid-Block Roadside Pm2.5 On An Urban Arterial, Adam Moore
PSU Transportation Seminars
Modeling Impact of Traffic Conditions on Variability of Midblock Roadside Fine Particulate Matter Concentrations on an Urban Arterial: This paper presents an innovative modeling of fine particulate matter (PM2.5) concentrations as a function of very high resolution meteorological and traffic data. Peak period measurements were taken at a mid-block roadside location on an urban arterial commuter roadway. To capture the impact of dynamic traffic conditions, data were analyzed at 10-second intervals, with substantially higher resolution than typical roadside air quality study designs. Particular attention was paid to changes in traffic conditions, including fleet mix, queuing and vehicle platooning over the …
Identficaton And Characterization Of Pollutant Hot Spots Integratng Probe Vehicle, Traffic And Land Use Data, Katherine Eleanor Bell, Miguel Figliozzi
Identficaton And Characterization Of Pollutant Hot Spots Integratng Probe Vehicle, Traffic And Land Use Data, Katherine Eleanor Bell, Miguel Figliozzi
PSU Transportation Seminars
Identification and Characterization of PM2.5 and VOC Hot Spots on Arterial Corridor by Integrating Probe Vehicle, Traffic, and Land Use Data: The purpose of this study is to explore the use of integrated probe vehicle, traffic and land use data to identify and characterize fine particulate matter (PM2.5) and volatile organic compound (VOC) hot spot locations on urban arterial corridors. An emission hot spot is defined as a fixed location along a corridor in which the mean pollutant concentrations are consistently above the 85th percentile of pollutant concentrations when considering all other locations along the corridor during the same time …
Modeling Of Dc Link Capacitor Current Ripple For Electric Vehicle Traction Converter, Lei Jin, Julia Zhang
Modeling Of Dc Link Capacitor Current Ripple For Electric Vehicle Traction Converter, Lei Jin, Julia Zhang
TREC Final Reports
Contemporary Full Hybrid Electric Vehicle/Plug-in Hybrid Electric Vehicle/Battery Electric Vehicle (FHEV/PHEV/BEV) products use one or more DC/AC power converters, also known as traction inverters, to convert the DC voltage/current provided by the traction battery to the AC voltage/current to drive the traction motor(s). Large and bulky DC link capacitors are used at the input of the traction inverter to provide a smooth DC input voltage. Those DC link capacitors, occupying almost 50% of the space in the whole package, can contribute to more than 20% of the total cost of the traction inverter. They are generally over designed to assure …
Impacts Of Low-Speed Vehicles On Transportation Infrastructure And Safety, Katharine M. Hunter-Zaworski, Linda Cornell
Impacts Of Low-Speed Vehicles On Transportation Infrastructure And Safety, Katharine M. Hunter-Zaworski, Linda Cornell
TREC Final Reports
There are increasing numbers of low-speed electric vehicles (LSVs) on public roadways. These vehicles are designed to be used within protected environments and on roadways with a maximum posted speed of 25 mph. Currently these vehicles are not subject to the same federal requirements for occupant protection as passenger cars. This research project investigated safety standards, operating regulations, and LSV manufacturer materials from sources around the world. The purpose of the research was to determine positive and negative impacts that LSVs, including Neighborhood Electric Vehicles (NEVs) and Medium Speed Electric Vehicles (MSEVs), are likely to have for the Oregon Department …