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Articles 601 - 630 of 876
Full-Text Articles in Civil and Environmental Engineering
Keynote 2: The Alberta Oil Sands — Wrestling Bitumen Out Of The Wild North, David Rudolph
Keynote 2: The Alberta Oil Sands — Wrestling Bitumen Out Of The Wild North, David Rudolph
North American Energy Water Nexus Roundtable
Athabasca Oil Sand Reserve:
- Oil sands are contained within the Cretaceous McMurray Formation. (149,000 km2)
- 2.5 trillion barrels of extractable oil (~ 25 % of Canada Crude Oil Production)
- Surface mineable deposits cover 2,800 km2
- 450 billion L of process water used annually
- Currently over 130 km2 of tailings ponds (largest man-made structures in the world)
Panel Discussion Presentation: U.S. – Mexico Transboundary Perspectives, Martin J. Pasqualetti
Panel Discussion Presentation: U.S. – Mexico Transboundary Perspectives, Martin J. Pasqualetti
North American Energy Water Nexus Roundtable
Panel Discussion: U.S.-Mexico Transboundary Perspectives
Principal Question: What are the implications of the energy/ water nexus at the US/Mexico border?
1. Water Supply and Demand
2. Water Costs of Electricity
3. Virtual Water Transfers
4. Renewable Energy Resources
5. Solar/Water nexus at the US/Mexico Border
Panel Discussion Presentation: Regional Politics, International Dreams, Kathryn Furlong
Panel Discussion Presentation: Regional Politics, International Dreams, Kathryn Furlong
North American Energy Water Nexus Roundtable
Panel Discussion: U.S.-Canada Transboundary Perspective
The Main Idea:
What are the drivers of hydro-electric development? What are the influences of domestic politics? In what ways are they international?
Panel Discussion Presentation: Columbia River Treaty, Kelvin Ketchum
Panel Discussion Presentation: Columbia River Treaty, Kelvin Ketchum
North American Energy Water Nexus Roundtable
Panel Discussion: U.S.-Canada Transboundary Perspectives
Slide titles:
- Columbia River Treaty – the setting
- What does the Treaty Do?
- Social & Environmental Costs of the Treaty in Canada
- Treaty benefits and term
- Treaty priorities for water usage
- Example of Flood Control Curves
- Actual Treaty operations
- Supplemental operating agreements
- Treaty Implementation
- Reasons for Treaty Success
Event Program, University Of Nevada, Las Vegas
Event Program, University Of Nevada, Las Vegas
North American Energy Water Nexus Roundtable
The North American Energy-Water Nexus roundtable was held April 1, 2011, to promote the discussion of how energy and water issues converge in addressing international relations. The roundtable focused on water issues specific to the U.S.-Mexico and U.S.-Canada borders, including stakeholder-driven solutions for water policies and water technologies. The event was co-sponsored by the UNLV Urban Sustainability Initiative; Desert Research Institute; the Canadian Consulate of Los Angeles; and the government of Ontario, Canada.
Addressing Water Quality Issues In Rural Cameroon With Household Biosand Filters, Laine Klopfensten, Laura Petrasky, Valerie Winton, Jeff Brown
Addressing Water Quality Issues In Rural Cameroon With Household Biosand Filters, Laine Klopfensten, Laura Petrasky, Valerie Winton, Jeff Brown
Publications
This paper describes an ongoing collaboration between the Hope College student chapter of Engineers Without Borders – USA and the rural community of Nkuv in the Northwest Province of Cameroon related to improving drinking water quality using Manz biosand filters. The collaboration began in 2006 and focused on developing a community-based construction and distribution model for household water treatment units. Results from microbiology testing of the constructed filters indicate that this water treatment method is effective for improving water quality in rural areas. The results also highlight the need for ongoing assessment and adapting community education programs to provide necessary …
Case Study Evaluation Of Dynamic Traffic Assignment Tools, John Gliebe, Åsa Bergman
Case Study Evaluation Of Dynamic Traffic Assignment Tools, John Gliebe, Åsa Bergman
Urban Studies and Planning Faculty Publications and Presentations
A case study was undertaken in order to evaluate the potential use of dynamic traffic assignment (DTA) tools by Oregon Department of Transportation (ODOT) and its partner agencies. The objectives of this study were to provide insight into the nature of DTA models, to inform the program selection process, and to develop realistic expectations for potential DTA work plans. The overarching goal of this report is to describe the process followed and experiences of the study team in developing and testing DTA network models. Two available DTA programs were selected for in-depth analysis from a preliminary screening of available programs: …
Slides: Environmental Water In Australia, Chris Arnott
Slides: Environmental Water In Australia, Chris Arnott
Conversation with Water Management Reps from Colorado and Australia: "Adapting to Climate Change: Lessons Learned from Australia" (February 14)
Presenter: Chris Arnott, Managing Director, Alluvium Consulting
30 slides
Slides: Adapting To Climate Change: Lessons Learnt From The Australian Water Experience, Will Fargher
Slides: Adapting To Climate Change: Lessons Learnt From The Australian Water Experience, Will Fargher
Conversation with Water Management Reps from Colorado and Australia: "Adapting to Climate Change: Lessons Learned from Australia" (February 14)
Presenter: Will Fargher, National Water Commission, Australian Government
18 slides [4 have titles only and are missing images]
Assessment And Refinement Of Real-Time Travel Time Algorithms For Use In Practice, Phase Ii, Kristin A. Tufte, Soyoung Ahn, Sirisha Murthy Kothuri
Assessment And Refinement Of Real-Time Travel Time Algorithms For Use In Practice, Phase Ii, Kristin A. Tufte, Soyoung Ahn, Sirisha Murthy Kothuri
TREC Final Reports
The Federal Highway Administration (FHWA) has put a high priority on the use of existing dynamic message signs (DMS) to provide travel time estimates to the public. The Oregon Department of Transportation (ODOT) has three DMS in the Portland metropolitan area configured to display travel time information. In the near future, ODOT would like to make travel time estimates available on additional DMS, over the Internet on tripcheck.com and via 511. Travel time estimates are valuable to the traveling public; however, the estimates must be accurate to be useful. The purpose of this study is to extend prior travel time …
Exploratory Methods For Truck Re-Identification In A Statewide Network Based On Axle Weight And Axle Spacing Data To Enhance Freight Metrics, Christopher M. Monsere, Mecit Cetin, Andrew Nichols
Exploratory Methods For Truck Re-Identification In A Statewide Network Based On Axle Weight And Axle Spacing Data To Enhance Freight Metrics, Christopher M. Monsere, Mecit Cetin, Andrew Nichols
TREC Final Reports
The main objective of this project is to evaluate the feasibility of re-identifying commercial trucks based on vehicle-attribute data automatically collected by sensors installed at traffic data collection stations. To support this work, archived data from weigh-in-motion (WIM) stations in Oregon are used for developing, calibrating, and testing vehicle re-identification algorithms. The vehicle re-identification methods developed in this research consist of two main stages. In the first stage, each vehicle from the downstream station is matched to the most “similar” upstream vehicle by using a Bayesian model. In the second stage, several methods are introduced to screen out those vehicles …
Human Sanitary Wastes And Waste Treatment In New York City, David J. Tonjes, Christine O'Connell, Omkar Aphale, R. Lawrence Swanson
Human Sanitary Wastes And Waste Treatment In New York City, David J. Tonjes, Christine O'Connell, Omkar Aphale, R. Lawrence Swanson
Technology & Society Faculty Publications
Henry Hudson first sailed toNew Yorkharbor 400 years ago. Since then,New York Cityhas both affected and been affected by water quality in greaterNew YorkHarbor. In this paper, we focus on sewers, sewerage, and sewage treatment inManhattanand their effects on theHudson River. It is clear that feedbacks among drinking water quality and quantity, population, public perceptions, regulations, and estuarine water quality exist, although their strength and character have varied over time. Early land uses damaged local water supplies found on ManhattanIsland. New Yorkthen began to exploit the large fresh water resources available to its north, which helped the City to expand …
Strategies To Improve And Preserve Flexible Pavements At Intersections, Imad N. Abdallah
Strategies To Improve And Preserve Flexible Pavements At Intersections, Imad N. Abdallah
Open Access Theses & Dissertations
Many rural intersections originally constructed with thin untreated flexible base and hot mix or a two-course surface treatment experience severe pushing, shoving and rutting. These failures cause an extremely rough surface that can cause damage to small vehicles and potentially cause motorists to lose control of their vehicle. These distresses almost always result in complete failure of the existing pavement that must be repaired several times during the life of the roadway by maintenance forces. Pavement sections constructed with the same materials adjacent to the intersection perform adequately until the approach (approximately 150 ft in advance) of the intersection and …
Selection Of Source And Use Of Traffic Information In Emergency Situations, R. Michael Robinson, Asad Khattak
Selection Of Source And Use Of Traffic Information In Emergency Situations, R. Michael Robinson, Asad Khattak
VMASC Publications
The access and the use of advanced traveler information systems (ATISs) by drivers during normal commuting have been extensively assessed and analyzed. Emergency managers and transportation officials have extended the results of studies of ATIS use under routine conditions to emergency scenarios under the assumption that drivers' responses to information under emergency conditions mimic those seen under normal driving conditions. A recent survey of potential hurricane evacuees suggests the need to revisit this assumption. Results indicate that although commercial radio reports and variable message signs continue to be the sources of traffic information cited the most frequently, other information sources …
Evaluation And Recommendation Of Mix Design For Emulsion Stabilized Bases, Samuel Franco
Evaluation And Recommendation Of Mix Design For Emulsion Stabilized Bases, Samuel Franco
Open Access Theses & Dissertations
Asphalt emulsion has been used for base material stabilization in a few TxDOT districts. Results from these practices were quite different. The initial performance of two projects on US287 constructed around 2000 in the Amarillo District has been found to be satisfactory. However, the Yoakum District has reported problems with asphalt emulsion for base work in a project on FM 237. The preliminary conclusion from these trials has been that asphalt emulsion may not perform well in the high humidity/high rainfall areas like east Texas. On the other hand, using calcium-based additives to stabilize base courses in road construction has …
Methodology To Convert A Transportation Planning Origin-Destination Matrix Into A Microscopic Traffic Simulation Origin-Destination Matrix, Jose Osiris Vidana-Bencomo
Methodology To Convert A Transportation Planning Origin-Destination Matrix Into A Microscopic Traffic Simulation Origin-Destination Matrix, Jose Osiris Vidana-Bencomo
Open Access Theses & Dissertations
Microscopic traffic simulation (MTS) is a cost-effective approach for the evaluation of traffic conditions in urban highways networks. In MTS models, traffic demand that is entered into the network is specified by one or several Origin-Destination (O-D) matrices. A major challenge in the application of MTS for large urban networks is the specification of the O-D matrices. This dissertation proposes a methodology that may be used to transform a O-D matrix from a transportation planning model (which is based on Traffic Analysis Zone, or TAZ, and is readily available) into a O-D matrix for a MTS model (which is traffic …
Freight Distribution Problems In Congested Urban Areas: Fast And Effective Solution Procedures To Time-Dependent Vehicle Routing Problems, Miguel A. Figliozzi
Freight Distribution Problems In Congested Urban Areas: Fast And Effective Solution Procedures To Time-Dependent Vehicle Routing Problems, Miguel A. Figliozzi
Civil and Environmental Engineering Faculty Publications and Presentations
Congestion is a common phenomenon in all medium to large cities of the world. Reliability of freight movement in urban areas is an important issue to manufacturing or service companies whose operation is based in just-in-time approaches. These companies tend to provide high value or time sensitive products/services. As congestion increases, carriers face increasing challenges to satisfy their time sensitive customers in an economical way. Route designs or schedules which require long computation times or ignore travel time variations will result in inefficient and suboptimal solutions. Poorly designed routes that lead freight vehicles into congested arteries and streets not only …
Highway Safety Investigation Manual For The Oregon Department Of Transportation, Karen Dixon, Christopher Monsere
Highway Safety Investigation Manual For The Oregon Department Of Transportation, Karen Dixon, Christopher Monsere
Civil and Environmental Engineering Faculty Publications and Presentations
Across the state, region, and nation highway safety investigators have developed a wide variety of tools and techniques for highway safety investigation procedures. Analysis techniques can range from systematic evaluation approaches such as the Oregon Department of Transportation’s (ODOT’s) Safety Priority Index System (SPIS) down to specific localized safety assessment strategies. It is important to develop consistent methods for safety evaluations across Oregon to ensure that safety investigations are conducted in a similar manner. It is also important to develop a screening process for proper highway safety investigations and document the procedures used for this assessment.
The objective of this …
Energy Efficiency Technologies For Buildings: Potential For Energy, Cost, And Carbon Emission Savings, Bukola S. Jimoh
Energy Efficiency Technologies For Buildings: Potential For Energy, Cost, And Carbon Emission Savings, Bukola S. Jimoh
CMC Senior Theses
Buildings are a significant energy consumer and are responsible for an increasingly large percent of worldwide greenhouse gas emissions, currently between 30 and 40 percent. Energy efficiency presents unique opportunities for building owners to reduce their environmental footprint and add value through cost savings, tax deductions, and increased market value. An analysis of 183 samples of efficiency measures in seven technology categories found that 74% of efficiency investments had a positive net present value. Building automation system and chiller plant improvements had the highest mean energy and carbon dioxide savings per square foot. Additionally, building automation systems had, on average …
Primary And Secondary Incident Management: Predicting Durations In Real Time, Asad J. Khattak, Xin Wang, Hongbing Zhang, Mecit Cetin
Primary And Secondary Incident Management: Predicting Durations In Real Time, Asad J. Khattak, Xin Wang, Hongbing Zhang, Mecit Cetin
Civil & Environmental Engineering Faculty Publications
Traffic incidents are a major source of congestion in Virginia. Secondary incidents comprise a relatively small but important portion of all incidents, and relatively little is known about their occurrence, characteristics, and associated delays. The main objectives of this study were to define secondary incidents, understand and analyze the occurrence and nature of such incidents, and develop tools that can comprehensively and continuously analyze primary and secondary incidents at the planning and operational levels, ultimately contributing to congestion management. The scope of the study is limited to freeway incidents in the Hampton Roads (HR) area. The study found that secondary …
Evaluation Of The Iqa Delay Estimation Method, Yaye Keita, Mitsuru Saito
Evaluation Of The Iqa Delay Estimation Method, Yaye Keita, Mitsuru Saito
CUTR Faculty Journal Publications
The Incremental Queue Accumulation (IQA) method is the new delay estimation method for signalized intersections adopted for the Highway Capacity Manual 2010. Using a signalized intersection and a remote data collection facility, the IQA method was evaluated for its accuracy and for potential challenges that practitioners may encounter as they use the new method. The results were compared with delays obtained by the delay estimation models included in the Highway Capacity Manual 2000. It was found that the IQA method was promising and theoretically more robust than the current delay estimation model, but field data collection could be challenging. © …
The Effects Of Electricity Pring On Phev Competitiveness, Shisheng Huang, Bri-Mathias S. Hodge, Farzad Taheripour, Joseph F. Pekny, Gintaras V. Reklaitis, Wallace E. Tyner
The Effects Of Electricity Pring On Phev Competitiveness, Shisheng Huang, Bri-Mathias S. Hodge, Farzad Taheripour, Joseph F. Pekny, Gintaras V. Reklaitis, Wallace E. Tyner
PPRI Digital Library
Plug-in Hybrid Electric Vehicles (PHEVs) will soon start to be introduced into the transportation sector, thereby raising a host of issues related to their use, adoption and effects on the electricity sector. Their introduction has the potential to significantly reduce carbon emissions from the transportation sector, which has led to government policies aimed at easing their introduction. If their wide-spread adoption is set as a target it is imperative to consider the effects of existing policies that may increase or decrease their adoption rate. In this study, we present a micro level electricity demand model that can gauge the effects …
Analysis And Evaluation Of Safety Impacts Of Median Types And Midblock Left Turn Treatments For Urban Arterials, Timur Mauga
Analysis And Evaluation Of Safety Impacts Of Median Types And Midblock Left Turn Treatments For Urban Arterials, Timur Mauga
UNLV Theses, Dissertations, Professional Papers, and Capstones
Urban growth leads to new land-uses abutting arterials requiring driveways for their accessibility. Uncontrolled number and locations of such access points causes safety, mobility and accessibility problems. The solution to these problems is access management (AM) which controls the number and location of the access points. AM techniques are normally documented in the form of guidelines for engineers and planners to follow when implementing the techniques. However, AM guidelines may not cover every technique due to the fact that AM is still growing. For example, the current AM guideline prepared by The Nevada Department of Transportation addresses many AM techniques. …
Pooling For Horizontal Wells: Can They Teach An Old Dog New Tricks?, Bruce M. Kramer
Pooling For Horizontal Wells: Can They Teach An Old Dog New Tricks?, Bruce M. Kramer
Shale Plays in the Intermountain West: Legal and Policy Issues (November 12)
74 pages.
This paper was originally published as:
Bruce M. Kramer, “Pooling for Horizontal Wells: Can They Teach an Old Dog New Tricks?,” 55 Rocky Mt. Min. L. Inst. 8-1, § 8.05 (2009).
Slides: Shale Drilling And Completions, William Fleckenstein
Slides: Shale Drilling And Completions, William Fleckenstein
Shale Plays in the Intermountain West: Legal and Policy Issues (November 12)
Presenter: William Fleckenstein, BP Adjunct Professor in the Petroleum Department and Director of PERFORM Research, Colorado School of Mines, Golden, CO, and Managing Partner of Fleckenstein, Eustes & Associates
20 slides
Slides: Transforming And Disrupting: Shale Gas And Oil In U.S. Energy Supply, Richard Nehring
Slides: Transforming And Disrupting: Shale Gas And Oil In U.S. Energy Supply, Richard Nehring
Shale Plays in the Intermountain West: Legal and Policy Issues (November 12)
Presenter: Richard Nehring, Nehring Associates, Colorado Springs, CO
15 slides
Agenda: Shale Plays In The Intermountain West: Legal And Policy Issues, University Of Colorado Boulder. Natural Resources Law Center
Agenda: Shale Plays In The Intermountain West: Legal And Policy Issues, University Of Colorado Boulder. Natural Resources Law Center
Shale Plays in the Intermountain West: Legal and Policy Issues (November 12)
This one-day symposium to be held at the Grand Hyatt hotel in Denver will address the technology, economics, environmental impacts, and regulatory issues associated with shale gas development in the Rocky Mountain region. The purpose of this event is to facilitate productive dialogue among a wide range of stakeholders and interested parties to guide policy decisions.
Slides: Development Of Shale: Water Resource Concerns And Policy Considerations, Katy Dunlap
Slides: Development Of Shale: Water Resource Concerns And Policy Considerations, Katy Dunlap
Shale Plays in the Intermountain West: Legal and Policy Issues (November 12)
Presenter: Katy Dunlap, Eastern Water Project Director, Trout Unlimited, Inc., Burdett, NY
24 slides
Slides: The Here And Now Of U.S. Nat Gas, Michelle Michot Foss
Slides: The Here And Now Of U.S. Nat Gas, Michelle Michot Foss
Shale Plays in the Intermountain West: Legal and Policy Issues (November 12)
Presenter: Michelle Michot Foss, Chief Energy Economist, Center for Energy Economics, Bureau of Economic Geology, University of Texas, Austin, TX
12 slides
Slides: Water And Development Of Unconventional Oil And Gas Resources, Judy Jordan
Slides: Water And Development Of Unconventional Oil And Gas Resources, Judy Jordan
Shale Plays in the Intermountain West: Legal and Policy Issues (November 12)
Presenter: Judy Jordan, Oil & Gas Liaison, Garfield County, Rifle, CO
21 slides