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• 1. [Article] Traveling the past into the present : the region's highways and byways

  Reviews the work of Oregon's first surveyors and cartographers, and compares early maps to the modern landscape.

  Citation × Citation Citation Abstract Copy Title: Traveling the past into the present : the region's highways and byways Author: Peterson del Mar, David, Kaplinger, Heather, Merrick, Meg Year: 2005 Reviews the work of Oregon's first surveyors and cartographers, and compares early maps to the modern landscape. Title: Traveling the past into the present : the region's highways and byways Author: Peterson del Mar, David, Kaplinger, Heather, Merrick, Meg Year: 2005 Reviews the work of Oregon's first surveyors and cartographers, and compares early maps to the modern landscape. Close

• 2. [Article] Site Location Study for an Integrated Traffic Data Collection System: Phase 1 Report

  Improved technology for counting, classifying, and weighing vehicles in the highway traffic stream is becoming increasingly available. Research has been undertaken to make effective use of these new technologies, ...

  Citation × Citation Citation Abstract Copy Title: Site Location Study for an Integrated Traffic Data Collection System: Phase 1 Report Author: Dueker, Kenneth, Ledbetter, Richard, Rex, Bruce Year: 1989 Improved technology for counting, classifying, and weighing vehicles in the highway traffic stream is becoming increasingly available. Research has been undertaken to make effective use of these new technologies, not just to replace current data collection programs of counting, classifying, and weighing with more efficient versions. This reports on the Phase I research, which had three major objectives; a literature review to guide the analysis of alternative methods; a statement of requirements to modernize and integrate the data collection programs of traffic counting, vehicle classification and truck weights, and to identify the type and use of traffic data for design, planning maintenance, enforcement and vehicle taxation;and analysis of alternative site selection methods to meet the locational requirements of an integrated traffic data collection system. The following sections report on progress toward these objectives and provide detailed recommendations for continuation of the research into Phase II. Title: Site Location Study for an Integrated Traffic Data Collection System: Phase 1 Report Author: Dueker, Kenneth, Ledbetter, Richard, Rex, Bruce Year: 1989 Improved technology for counting, classifying, and weighing vehicles in the highway traffic stream is becoming increasingly available. Research has been undertaken to make effective use of these new technologies, not just to replace current data collection programs of counting, classifying, and weighing with more efficient versions. This reports on the Phase I research, which had three major objectives; a literature review to guide the analysis of alternative methods; a statement of requirements to modernize and integrate the data collection programs of traffic counting, vehicle classification and truck weights, and to identify the type and use of traffic data for design, planning maintenance, enforcement and vehicle taxation;and analysis of alternative site selection methods to meet the locational requirements of an integrated traffic data collection system. The following sections report on progress toward these objectives and provide detailed recommendations for continuation of the research into Phase II. Close

• 3. [Article] Temporal Variations of Citizens’ Demands on Flood Damage Mitigation, Streamflow Quantity and Quality in the Korean Urban Watershed

  Sustainable watershed management (SWM) can be achieved through recognition and reflection upon the values of citizens. Collaborative governance consisting of citizens is crucial for successful SWM. Collaborative ...

  Citation × Citation Citation Abstract Copy Title: Temporal Variations of Citizens’ Demands on Flood Damage Mitigation, Streamflow Quantity and Quality in the Korean Urban Watershed Author: Hong, Change-Yu, Chung, Eun-Sung Year: 2016 Sustainable watershed management (SWM) can be achieved through recognition and reflection upon the values of citizens. Collaborative governance consisting of citizens is crucial for successful SWM. Collaborative governance definitely requires an active participatory decision-making process that reflects citizens’ preferences. Citizen preference also tends to substantially change with life pattern and life quality. These shifts can be caused by slight variations in both social priorities and personal preferences for SWM. Therefore, collaborative water governance must be frequently renewed in response to citizens’ values through the participatory framework. The An’yang Stream in South Korea is generally regarded as a representative urban stream restoration case that has been successfully led by collaborative governance. By conducting individual surveys with citizens on-site, this study addresses how citizens’ preferences of the stream’s management have changed between 2005 and 2015. In addition, this study used three quantitative hydrologic vulnerability indices: potential flood damage (PFD), potential streamflow depletion (PSD), and potential water quality deterioration (PWQD). They can spatially quantify citizen preference using the Analytic Hierarchy Process (AHP), which can systematically derive citizens’ subjective relative-weighted preferences. In the end, this study identified critical differences in priorities in regard to vulnerable areas between in 2005 and in 2015. Title: Temporal Variations of Citizens’ Demands on Flood Damage Mitigation, Streamflow Quantity and Quality in the Korean Urban Watershed Author: Hong, Change-Yu, Chung, Eun-Sung Year: 2016 Sustainable watershed management (SWM) can be achieved through recognition and reflection upon the values of citizens. Collaborative governance consisting of citizens is crucial for successful SWM. Collaborative governance definitely requires an active participatory decision-making process that reflects citizens’ preferences. Citizen preference also tends to substantially change with life pattern and life quality. These shifts can be caused by slight variations in both social priorities and personal preferences for SWM. Therefore, collaborative water governance must be frequently renewed in response to citizens’ values through the participatory framework. The An’yang Stream in South Korea is generally regarded as a representative urban stream restoration case that has been successfully led by collaborative governance. By conducting individual surveys with citizens on-site, this study addresses how citizens’ preferences of the stream’s management have changed between 2005 and 2015. In addition, this study used three quantitative hydrologic vulnerability indices: potential flood damage (PFD), potential streamflow depletion (PSD), and potential water quality deterioration (PWQD). They can spatially quantify citizen preference using the Analytic Hierarchy Process (AHP), which can systematically derive citizens’ subjective relative-weighted preferences. In the end, this study identified critical differences in priorities in regard to vulnerable areas between in 2005 and in 2015. Close

• 4. [Article] Future Flooding Impacts on Transportation Infrastructure and Traffic Patterns Resulting from Climate Change

  This study investigated potential impacts of climate change on travel disruption resulting from road closures in two urban watersheds in the Portland metropolitan area. We used ensemble climate change ...

  Citation × Citation Citation Abstract Copy Title: Future Flooding Impacts on Transportation Infrastructure and Traffic Patterns Resulting from Climate Change Author: Chang, Heejun, Lafrenz, Martin, Jung, Il-Won, Figliozzi, Miguel A., Melgoza, Rolando, Ruelas, David, Platman, Deena, Pederson, Cindy Year: 2011 This study investigated potential impacts of climate change on travel disruption resulting from road closures in two urban watersheds in the Portland metropolitan area. We used ensemble climate change scenarios, a hydrologic model, stream channel survey, a hydraulic model, and a travel forecast model to develop an integrated impact assessment method. High-resolution climate change scenarios are based on the combinations of two emission scenarios and eight general circulation models. The Precipitation-Runoff Modeling System was calibrated and validated for the period 1988-2006, and simulated for determining the probability of floods from 2020-2049. We surveyed stream cross sections at five road crossings for stream channel geometry and determined floodwater surface elevations using the HEC-RAS model. Four of the surveyed bridges and roadways were lower in elevation than the current 100-year floodwater surface elevation, leading to relatively frequent nuisance flooding. These roadway flooding events will become more frequent under some climate change scenarios in the future, but climate change impacts will depend on local geomorphic conditions. While vehicle miles traveled were not significantly affected by road closure, vehicle-hours delay demonstrated a greater impact from road closures, increasing by 10 percent in the Fanno Creek area. Results indicate that any cost analysis is extremely sensitive to the occurrence of human fatalities or injuries and fairly insensitive to delay costs. In addition, this research presents a comprehensive classification of flooding costs, identifies preventative measures, and makes short- and long-term recommendations. Our research demonstrated the usefulness of the integration of top-down and bottom-up approaches in climate change impact assessment, and the need for spatially explicit modeling and participatory planning in flood management and transportation planning under increasing climate uncertainty. Title: Future Flooding Impacts on Transportation Infrastructure and Traffic Patterns Resulting from Climate Change Author: Chang, Heejun, Lafrenz, Martin, Jung, Il-Won, Figliozzi, Miguel A., Melgoza, Rolando, Ruelas, David, Platman, Deena, Pederson, Cindy Year: 2011 This study investigated potential impacts of climate change on travel disruption resulting from road closures in two urban watersheds in the Portland metropolitan area. We used ensemble climate change scenarios, a hydrologic model, stream channel survey, a hydraulic model, and a travel forecast model to develop an integrated impact assessment method. High-resolution climate change scenarios are based on the combinations of two emission scenarios and eight general circulation models. The Precipitation-Runoff Modeling System was calibrated and validated for the period 1988-2006, and simulated for determining the probability of floods from 2020-2049. We surveyed stream cross sections at five road crossings for stream channel geometry and determined floodwater surface elevations using the HEC-RAS model. Four of the surveyed bridges and roadways were lower in elevation than the current 100-year floodwater surface elevation, leading to relatively frequent nuisance flooding. These roadway flooding events will become more frequent under some climate change scenarios in the future, but climate change impacts will depend on local geomorphic conditions. While vehicle miles traveled were not significantly affected by road closure, vehicle-hours delay demonstrated a greater impact from road closures, increasing by 10 percent in the Fanno Creek area. Results indicate that any cost analysis is extremely sensitive to the occurrence of human fatalities or injuries and fairly insensitive to delay costs. In addition, this research presents a comprehensive classification of flooding costs, identifies preventative measures, and makes short- and long-term recommendations. Our research demonstrated the usefulness of the integration of top-down and bottom-up approaches in climate change impact assessment, and the need for spatially explicit modeling and participatory planning in flood management and transportation planning under increasing climate uncertainty. Close

• 5. [Article] United States Regional History as an Instructional Field: The Practice of College and University History Departments

  In one sense, American history is "a sequential process of regional development marked by a persistent tension between regional cultures and economic interests and integrative national institutions and ...

  Citation × Citation Citation Abstract Copy Title: United States Regional History as an Instructional Field: The Practice of College and University History Departments Author: Abbott, Carl Year: 1990 In one sense, American history is "a sequential process of regional development marked by a persistent tension between regional cultures and economic interests and integrative national institutions and values." Since the 1890's, regional history has been an active enterprise supported by academic instruction, leading university presses, specialized journals, and professional organizations. A survey of college and university departments of history yielded data to analyze the present ambiguous position of regional history within the evolving discipline of American historical studies. Title: United States Regional History as an Instructional Field: The Practice of College and University History Departments Author: Abbott, Carl Year: 1990 In one sense, American history is "a sequential process of regional development marked by a persistent tension between regional cultures and economic interests and integrative national institutions and values." Since the 1890's, regional history has been an active enterprise supported by academic instruction, leading university presses, specialized journals, and professional organizations. A survey of college and university departments of history yielded data to analyze the present ambiguous position of regional history within the evolving discipline of American historical studies. Close

• 6. [Article] 1999 Oregon Population Report

  This report presents population estimates for Oregon and its counties and incorporated cities for July 1, 1999. The ten tables in this report show current 1999 population estimates as well as historical ...

  Citation × Citation Citation Abstract Copy Title: 1999 Oregon Population Report Author: Cai, Qian, Portland State University. Population Research Center Year: 1999 This report presents population estimates for Oregon and its counties and incorporated cities for July 1, 1999. The ten tables in this report show current 1999 population estimates as well as historical data. Title: 1999 Oregon Population Report Author: Cai, Qian, Portland State University. Population Research Center Year: 1999 This report presents population estimates for Oregon and its counties and incorporated cities for July 1, 1999. The ten tables in this report show current 1999 population estimates as well as historical data. Close

• 7. [Article] 2001 Oregon Population Report

  This report presents population estimates for Oregon and its counties and incorporated cities for July 1, 2001. The eleven tables in this report show current 2001 population estimates as well as historical ...

  Citation × Citation Citation Abstract Copy Title: 2001 Oregon Population Report Author: Portland State University. Population Research Center, Cai, Qian, Hough, George C., Jr. Year: 2002 This report presents population estimates for Oregon and its counties and incorporated cities for July 1, 2001. The eleven tables in this report show current 2001 population estimates as well as historical data. Title: 2001 Oregon Population Report Author: Portland State University. Population Research Center, Cai, Qian, Hough, George C., Jr. Year: 2002 This report presents population estimates for Oregon and its counties and incorporated cities for July 1, 2001. The eleven tables in this report show current 2001 population estimates as well as historical data. Close

• 8. [Article] Population Growth in Oregon: 2000 to 2002

  This report presents population estimates for Oregon and its counties and incorporated cities for July 1, 2002. The eleven tables in this report show current 2002 population estimates as well as historical ...

  Citation × Citation Citation Abstract Copy Title: Population Growth in Oregon: 2000 to 2002 Author: Portland State University. Population Research Center, Cai, Qian, Edmonston, Barry, Hough, George C., Jr. Year: 2003 This report presents population estimates for Oregon and its counties and incorporated cities for July 1, 2002. The eleven tables in this report show current 2002 population estimates as well as historical data. Supplements to the 2002 Population Report are included. Title: Population Growth in Oregon: 2000 to 2002 Author: Portland State University. Population Research Center, Cai, Qian, Edmonston, Barry, Hough, George C., Jr. Year: 2003 This report presents population estimates for Oregon and its counties and incorporated cities for July 1, 2002. The eleven tables in this report show current 2002 population estimates as well as historical data. Supplements to the 2002 Population Report are included. Close

• 9. [Article] 2004 Oregon Population Report

  This report presents population estimates for Oregon and its counties and incorporated cities for July 1, 2004. The eleven tables in this report show current 2004 population estimates as well as historical ...

  Citation × Citation Citation Abstract Copy Title: 2004 Oregon Population Report Author: Portland State University. Population Research Center, Cai, Qian, Edmonston, Barry, Hough, George C., Jr. Year: 2005 This report presents population estimates for Oregon and its counties and incorporated cities for July 1, 2004. The eleven tables in this report show current 2004 population estimates as well as historical data. Supplements to the 2004 Population Report are included. Title: 2004 Oregon Population Report Author: Portland State University. Population Research Center, Cai, Qian, Edmonston, Barry, Hough, George C., Jr. Year: 2005 This report presents population estimates for Oregon and its counties and incorporated cities for July 1, 2004. The eleven tables in this report show current 2004 population estimates as well as historical data. Supplements to the 2004 Population Report are included. Close

• 10. [Article] 2003 Oregon Population Report

  This report presents population estimates for Oregon and its counties and incorporated cities for July 1, 2003. The eleven tables in this report show current 2003 population estimates as well as historical ...

  Citation × Citation Citation Abstract Copy Title: 2003 Oregon Population Report Author: Portland State University. Population Research Center, Cai, Qian, Hough, George C., Jr. Year: 2004 This report presents population estimates for Oregon and its counties and incorporated cities for July 1, 2003. The eleven tables in this report show current 2003 population estimates as well as historical data. Supplements to the 2003 Population Report are included. Title: 2003 Oregon Population Report Author: Portland State University. Population Research Center, Cai, Qian, Hough, George C., Jr. Year: 2004 This report presents population estimates for Oregon and its counties and incorporated cities for July 1, 2003. The eleven tables in this report show current 2003 population estimates as well as historical data. Supplements to the 2003 Population Report are included. Close