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• 1. [Article] Green Mind Gray Yard: Micro Scale Assessment of Ecosystem Services

  There is a spatial mismatch between the size of the area where people are living and the extent of land needed to ecologically support developed areas. More people are living in urban areas than any time ...

  Citation × Citation Citation Abstract Copy Title: Green Mind Gray Yard: Micro Scale Assessment of Ecosystem Services Author: Kirkpatrick, Erin Jolene Year: 2013 There is a spatial mismatch between the size of the area where people are living and the extent of land needed to ecologically support developed areas. More people are living in urban areas than any time in history, and the resources need to support cities have had to expand to try and meet the demands of increasing urban populations. However, areas of opportunity exist for urban areas to begin to positively contribute towards the available resources in a region. Because a large portion of urban areas is within private control, gaining a baseline understanding of how residents interact with ecosystem services served as basis of this study. Using a survey of residents in the Portland, OR area, correlations between demographic groups and questions regarding their beliefs, attitudes, and behaviors as they relate to vegetation proved that the knowledge of environmental relationships is an important first step in creating pro-environmental behavior. Those reporting a high level of knowledge for ecological system and processes were more likely to value the benefits of vegetation for other associated reasons, such as for recreational activities, aesthetic purposes, and air or water quality. Additionally, survey responses were mapped to spatial data to gain an understanding of the spatial characteristics of neighborhoods in the survey area and how they have changed over time. Overall, the results in the study display trends that can help outreach organizations and municipalities to determine plans to strategically engage the public in a way that could create a net gain in urban ecosystem services. Title: Green Mind Gray Yard: Micro Scale Assessment of Ecosystem Services Author: Kirkpatrick, Erin Jolene Year: 2013 There is a spatial mismatch between the size of the area where people are living and the extent of land needed to ecologically support developed areas. More people are living in urban areas than any time in history, and the resources need to support cities have had to expand to try and meet the demands of increasing urban populations. However, areas of opportunity exist for urban areas to begin to positively contribute towards the available resources in a region. Because a large portion of urban areas is within private control, gaining a baseline understanding of how residents interact with ecosystem services served as basis of this study. Using a survey of residents in the Portland, OR area, correlations between demographic groups and questions regarding their beliefs, attitudes, and behaviors as they relate to vegetation proved that the knowledge of environmental relationships is an important first step in creating pro-environmental behavior. Those reporting a high level of knowledge for ecological system and processes were more likely to value the benefits of vegetation for other associated reasons, such as for recreational activities, aesthetic purposes, and air or water quality. Additionally, survey responses were mapped to spatial data to gain an understanding of the spatial characteristics of neighborhoods in the survey area and how they have changed over time. Overall, the results in the study display trends that can help outreach organizations and municipalities to determine plans to strategically engage the public in a way that could create a net gain in urban ecosystem services. Close

• 2. [Article] Cultivating the Technology Ecosystem: An Interview with Skip Newbury

  An interview with Skip Newbury, President and CEO of the Technology Association of Oregon (TAO). He is a frequent speaker on technology trends and topics, economic development, public-private partnerships ...

  Citation × Citation Citation Abstract Copy Title: Cultivating the Technology Ecosystem: An Interview with Skip Newbury Author: Martin, Sheila Year: 2017 An interview with Skip Newbury, President and CEO of the Technology Association of Oregon (TAO). He is a frequent speaker on technology trends and topics, economic development, public-private partnerships and civic innovation. Before joining the TAO, Skip served as an economic development policy advisor to Portland Mayor Sam Adams, where he helped create Portland’s first comprehensive economic development strategy in 16 years, recognizing software as a key industry cluster. Title: Cultivating the Technology Ecosystem: An Interview with Skip Newbury Author: Martin, Sheila Year: 2017 An interview with Skip Newbury, President and CEO of the Technology Association of Oregon (TAO). He is a frequent speaker on technology trends and topics, economic development, public-private partnerships and civic innovation. Before joining the TAO, Skip served as an economic development policy advisor to Portland Mayor Sam Adams, where he helped create Portland’s first comprehensive economic development strategy in 16 years, recognizing software as a key industry cluster. Close

• 3. [Article] Metropolitan Briefing Book, 2001

  The Metropolitan briefing book was developed to provide elected and appointed leaders in the six counties with information about issues and trends common to all corners of the region.

  Citation × Citation Citation Abstract Copy Title: Metropolitan Briefing Book, 2001 Author: Wollner, Craig, Neal, Margaret B., Cortright, Joseph, Seltzer, Ethan, Villata, Carlos, Edmonston, Barry, Miller, Gary K., Shinn, Craig W. Year: 2001 The Metropolitan briefing book was developed to provide elected and appointed leaders in the six counties with information about issues and trends common to all corners of the region. Title: Metropolitan Briefing Book, 2001 Author: Wollner, Craig, Neal, Margaret B., Cortright, Joseph, Seltzer, Ethan, Villata, Carlos, Edmonston, Barry, Miller, Gary K., Shinn, Craig W. Year: 2001 The Metropolitan briefing book was developed to provide elected and appointed leaders in the six counties with information about issues and trends common to all corners of the region. Close

• 4. [Article] Metropolitan Briefing Book, 1999

  The Metropolitan briefing book was developed to provide elected and appointed leaders in the six counties with information about issues and trends common to all corners of the region.

  Citation × Citation Citation Abstract Copy Title: Metropolitan Briefing Book, 1999 Author: Wollner, Craig, Edmonston, Barry, Vilalta, Carlos, Cortright, Joseph, Burnett, Kim, Moore, Terry, Seltzer, Ethan, Goldschmidt, Neil E. Year: 1999 The Metropolitan briefing book was developed to provide elected and appointed leaders in the six counties with information about issues and trends common to all corners of the region. Title: Metropolitan Briefing Book, 1999 Author: Wollner, Craig, Edmonston, Barry, Vilalta, Carlos, Cortright, Joseph, Burnett, Kim, Moore, Terry, Seltzer, Ethan, Goldschmidt, Neil E. Year: 1999 The Metropolitan briefing book was developed to provide elected and appointed leaders in the six counties with information about issues and trends common to all corners of the region. Close

• 5. [Article] The Portland Region in 2010: Taking Stock and Looking to the Future

  A presentation on regional demographic and economic trends made to the Multnomah County Commission in February 2010.

  Citation × Citation Citation Abstract Copy Title: The Portland Region in 2010: Taking Stock and Looking to the Future Author: Martin, Sheila A. Year: 2010 A presentation on regional demographic and economic trends made to the Multnomah County Commission in February 2010. Title: The Portland Region in 2010: Taking Stock and Looking to the Future Author: Martin, Sheila A. Year: 2010 A presentation on regional demographic and economic trends made to the Multnomah County Commission in February 2010. Close

• 6. [Article] Planning at the Ballot Box : Better Decisions or the End of Planning?

  Land use planning in a variety of forms has been coming to the ballot box in Oregon more frequently in recent years, and this raises a host of issues for citizens, planners, advocates of all stripes, and ...

  Citation × Citation Citation Abstract Copy Title: Planning at the Ballot Box : Better Decisions or the End of Planning? Author: Seltzer, Ethan, Rehberg, Shayna Year: 2002 Land use planning in a variety of forms has been coming to the ballot box in Oregon more frequently in recent years, and this raises a host of issues for citizens, planners, advocates of all stripes, and elected officials alike. Will we make planning decisions through deliberative, inclusive public processes, or will planning amount to ?yes-no? questions put before voters in the form of ballot measures? Will representative elected bodies be the decisionmakers, or will we bypass them completely with new applications of direct democracy? To help identify and describe this trend, this paper reviews the current literature on ballot box planning as a means for helping metropolitan area communities get ready for what is likely to be an increasing volume of planning-related electoral activity. Here, "ballot box planning" refers to the use of initiatives and referenda in deciding land use planning matters (Caves, 1992). Citizen initiatives and referenda are tools of direct democracy, and in the literature are also referred to as tools for "direct legislation." Title: Planning at the Ballot Box : Better Decisions or the End of Planning? Author: Seltzer, Ethan, Rehberg, Shayna Year: 2002 Land use planning in a variety of forms has been coming to the ballot box in Oregon more frequently in recent years, and this raises a host of issues for citizens, planners, advocates of all stripes, and elected officials alike. Will we make planning decisions through deliberative, inclusive public processes, or will planning amount to ?yes-no? questions put before voters in the form of ballot measures? Will representative elected bodies be the decisionmakers, or will we bypass them completely with new applications of direct democracy? To help identify and describe this trend, this paper reviews the current literature on ballot box planning as a means for helping metropolitan area communities get ready for what is likely to be an increasing volume of planning-related electoral activity. Here, "ballot box planning" refers to the use of initiatives and referenda in deciding land use planning matters (Caves, 1992). Citizen initiatives and referenda are tools of direct democracy, and in the literature are also referred to as tools for "direct legislation." Close

• 7. [Article] How to Pay for Transportation? A Survey of Public Preferences

  States around the nation are scrambling to find new sources of revenue to maintain and expand their transportation systems. The traditional major source of funds, state and federal fuel taxes, has rarely ...

  Citation × Citation Citation Abstract Copy Title: How to Pay for Transportation? A Survey of Public Preferences Author: Dill, Jennifer, Agrawal, Asha Weinstein Year: 2006 States around the nation are scrambling to find new sources of revenue to maintain and expand their transportation systems. The traditional major source of funds, state and federal fuel taxes, has rarely kept pace with inflation. In most cases state legislatures have been unwilling to raise fuel taxes high enough to cover desired levels of expenditure, thus pushing state and local governments to look for new sources such as sales taxes and tolls. Another outcome of legislative reluctance to raise fees and taxes that generate transportation revenues has been to put any potential revenue measure before the voters, as a ballot proposition. As a result of these new trends in how legislatures respond to proposals for raising transportation revenues, transportation agencies are more and more asked to choose revenue options that have strong public support. This paper investigates public opinion in California on support for a range of revenue options to fund transportation, including taxes and fees, bonds, and tolling. The analysis is based on results from two telephone surveys of California residents conducted in 2006. The survey revealed fairly strong public support for some tolling options. The most popular tax or fee option was to increase vehicle registration fees by a variable amount depending on the vehicle?s air pollutant emissions and gas mileage. Three tax options ? gas taxes, sales taxes, and the vehicle license fee ? had virtually the same levels of overall support, about 40%. The analysis of demographic and other factors provides further insights. People living in regions that have toll roads and HOT lanes were far more supportive of these concepts. Support for pricing options was not clearly related to income or ethnicity. Lower income respondents were about equally likely to support tolls roads, express toll lanes, and HOT lanes. Younger adults were more supportive of most tolling options, the mileage fee, and the registration fee that varied by emissions and gas mileage. The survey also revealed what many researchers have found ? that methodology, particularly question wording, is very important. Overall, the survey provides some optimism for implementing new options, such as tolling, and more traditional options of user fees. The positive reaction to linking fees with environmental objectives should be explored further by researchers and policy makers. Title: How to Pay for Transportation? A Survey of Public Preferences Author: Dill, Jennifer, Agrawal, Asha Weinstein Year: 2006 States around the nation are scrambling to find new sources of revenue to maintain and expand their transportation systems. The traditional major source of funds, state and federal fuel taxes, has rarely kept pace with inflation. In most cases state legislatures have been unwilling to raise fuel taxes high enough to cover desired levels of expenditure, thus pushing state and local governments to look for new sources such as sales taxes and tolls. Another outcome of legislative reluctance to raise fees and taxes that generate transportation revenues has been to put any potential revenue measure before the voters, as a ballot proposition. As a result of these new trends in how legislatures respond to proposals for raising transportation revenues, transportation agencies are more and more asked to choose revenue options that have strong public support. This paper investigates public opinion in California on support for a range of revenue options to fund transportation, including taxes and fees, bonds, and tolling. The analysis is based on results from two telephone surveys of California residents conducted in 2006. The survey revealed fairly strong public support for some tolling options. The most popular tax or fee option was to increase vehicle registration fees by a variable amount depending on the vehicle?s air pollutant emissions and gas mileage. Three tax options ? gas taxes, sales taxes, and the vehicle license fee ? had virtually the same levels of overall support, about 40%. The analysis of demographic and other factors provides further insights. People living in regions that have toll roads and HOT lanes were far more supportive of these concepts. Support for pricing options was not clearly related to income or ethnicity. Lower income respondents were about equally likely to support tolls roads, express toll lanes, and HOT lanes. Younger adults were more supportive of most tolling options, the mileage fee, and the registration fee that varied by emissions and gas mileage. The survey also revealed what many researchers have found ? that methodology, particularly question wording, is very important. Overall, the survey provides some optimism for implementing new options, such as tolling, and more traditional options of user fees. The positive reaction to linking fees with environmental objectives should be explored further by researchers and policy makers. Close

• 8. [Article] Residential Mobility and Revitalization in Portland Between 1970 and 1980: A Study of the Urban Structural Impacts on Neighborhood Revitalization

  Evidence of physical decline due in part to the rapid encroachment of commercial and industrial activity into some of Portland's residential areas in the mid-1960s and efforts to combat the forces of time ...

  Citation × Citation Citation Abstract Copy Title: Residential Mobility and Revitalization in Portland Between 1970 and 1980: A Study of the Urban Structural Impacts on Neighborhood Revitalization Author: Kamara, Sheka Gassimou Year: 1992 Evidence of physical decline due in part to the rapid encroachment of commercial and industrial activity into some of Portland's residential areas in the mid-1960s and efforts to combat the forces of time and change through neighborhood revitalization provide the basis for this study. Additionally, some of the characteristics often employed in explaining the phenomenon in cities are manifested in the city of Portland. For example, Portland is endowed with a distinctive and well established downtown area that provides opportunities for the establishment of businesses as well as white-collar job opportunities. By the standards of the U.S. Bureau of the Census, Portland has a relatively large population and several older neighborhoods. The city provides its residents the feel for inner-city living, such as its beautiful waterfront scenery, its high-rise and park block apartments, its cultural facilities and unique transit mall. These criteria underscore the selection of Portland as the geographical area of this research. The purpose of this research itself is to assess the urban structural changes that occurred in Portland between 1970 and 1980. The research used a sample of inner-city neighborhoods from the city to explain these structural changes over time. Additionally, two samples of neighborhoods (Northeast and Southeast) within the city were selected as the basis for comparing the structural changes. The data developed from the 1970 and 1980 census of population and housing characteristics comprised the change in the median household income ratio, the change in the home value ratio, and the change in the median rent ratio designated as dependent variables. Nine independent variables representing the pre-existing conditions in the city at the start of the decade were selected from locational, demographic, and housing factors. The research hypotheses were tested by regresslng the three dependent variables against the nine independent variables resulting in three regression models for each sample. The a priori expectations as reflected by the signs of the coefficients show mixed support for the hypotheses in each sample in predicted direction, and in level of significance. In the city sample the neighborhood housing quality factor was observed to have a strong positive causal relationship with neighborhood revitalization. The outcome confirmed the contention that a significant and systematic reverse revival trend occurred in Portland at the start of the 1970 decade. This finding contradicts the conventional invasion-succession theory associated with Burgess (1925). Similar reverse revival trends were observed in the Northeast and Southeast samples. But unlike the city sample the race factor had a strong positive causal relationship with revitalization. The outcome may be a reflection of the rental squeeze in terms of housing affordability faced by black renters in both subareas because their incomes could not keep pace with housing costs. Consequently their demand for rental housing may have grown faster than the supply of the rental housing stock in a segregated rental market. The chow tests show significant structural differences between the two submodels, but the impact of the race factor as reflected by the measures of relative variability was greater in Northeast Portland than in Southeast Portland. In light of the research findings, this study concludes that Portland may undoubtedly be the only city in the nation that experienced a significant and systematic revival trend between 1970 and 1980. However, this trend did not extend to the predominantly black areas of the city as reflected by the strong negative outcome of the race factor. In addition, the functional significance of the systematic revival trend in Portland may not be substantial when compared to larger and older cities like St. Louis and New Orleans that received media attention for a similar trend. Title: Residential Mobility and Revitalization in Portland Between 1970 and 1980: A Study of the Urban Structural Impacts on Neighborhood Revitalization Author: Kamara, Sheka Gassimou Year: 1992 Evidence of physical decline due in part to the rapid encroachment of commercial and industrial activity into some of Portland's residential areas in the mid-1960s and efforts to combat the forces of time and change through neighborhood revitalization provide the basis for this study. Additionally, some of the characteristics often employed in explaining the phenomenon in cities are manifested in the city of Portland. For example, Portland is endowed with a distinctive and well established downtown area that provides opportunities for the establishment of businesses as well as white-collar job opportunities. By the standards of the U.S. Bureau of the Census, Portland has a relatively large population and several older neighborhoods. The city provides its residents the feel for inner-city living, such as its beautiful waterfront scenery, its high-rise and park block apartments, its cultural facilities and unique transit mall. These criteria underscore the selection of Portland as the geographical area of this research. The purpose of this research itself is to assess the urban structural changes that occurred in Portland between 1970 and 1980. The research used a sample of inner-city neighborhoods from the city to explain these structural changes over time. Additionally, two samples of neighborhoods (Northeast and Southeast) within the city were selected as the basis for comparing the structural changes. The data developed from the 1970 and 1980 census of population and housing characteristics comprised the change in the median household income ratio, the change in the home value ratio, and the change in the median rent ratio designated as dependent variables. Nine independent variables representing the pre-existing conditions in the city at the start of the decade were selected from locational, demographic, and housing factors. The research hypotheses were tested by regresslng the three dependent variables against the nine independent variables resulting in three regression models for each sample. The a priori expectations as reflected by the signs of the coefficients show mixed support for the hypotheses in each sample in predicted direction, and in level of significance. In the city sample the neighborhood housing quality factor was observed to have a strong positive causal relationship with neighborhood revitalization. The outcome confirmed the contention that a significant and systematic reverse revival trend occurred in Portland at the start of the 1970 decade. This finding contradicts the conventional invasion-succession theory associated with Burgess (1925). Similar reverse revival trends were observed in the Northeast and Southeast samples. But unlike the city sample the race factor had a strong positive causal relationship with revitalization. The outcome may be a reflection of the rental squeeze in terms of housing affordability faced by black renters in both subareas because their incomes could not keep pace with housing costs. Consequently their demand for rental housing may have grown faster than the supply of the rental housing stock in a segregated rental market. The chow tests show significant structural differences between the two submodels, but the impact of the race factor as reflected by the measures of relative variability was greater in Northeast Portland than in Southeast Portland. In light of the research findings, this study concludes that Portland may undoubtedly be the only city in the nation that experienced a significant and systematic revival trend between 1970 and 1980. However, this trend did not extend to the predominantly black areas of the city as reflected by the strong negative outcome of the race factor. In addition, the functional significance of the systematic revival trend in Portland may not be substantial when compared to larger and older cities like St. Louis and New Orleans that received media attention for a similar trend. Close

• 9. [Article] Spatial variations in the intra-urban response to a noise source

  Most research on the urban sonic environment has been recent. One finding has been that physical noise exposure indices calibrate poorly with human noise response. The vagaries of human response to noise ...

  Citation × Citation Citation Abstract Copy Title: Spatial variations in the intra-urban response to a noise source Author: Conder, Wilbur David Year: 1973 Most research on the urban sonic environment has been recent. One finding has been that physical noise exposure indices calibrate poorly with human noise response. The vagaries of human response to noise have given impetus to research to isolate the factors that differentiate human response to noise. The present thesis continues this research. The thesis specifies human noise response to occur on three levels: awareness, annoyance, and complaint. The factors that structure each level of noise response are identified in the published Iiterature. Noise awareness is a function of noise exposure. Noise annoyance is a function of noise exposure to a lesser degree. In addition annoyance is structured by attitudes toward the noise source, special interests in its economic benefits and personal susceptibility to noise irritation. Complaint concerning noise involves the previous factors plus an affluence or socio-economic component. The trend as one moves upward in the noise response hierarchy is for the structuring factors to become specific to individuals rather than location. Hence, noise awareness with respect to a stationary noise source will vary spatially, while complaint will be random in space. In testing these premises the author has made use of noise exposure indices for Portland International Airport and a social survey of response in the area surrounding the airport. The noise exposure indices were supplied by the consulting firm of Bolt, Beranek, and Newman Inc. and the social survey was conducted and tabulated by the Center for Population Research and Census at Portland State University. Multivariate methods were used for testing the premises concerning the hierarchical relationships between awareness, annoyance, and complaint.The variables representing awareness, annoyance, and complaint are quantified from the survey data through principle component and factor scores computer programs. The noise awareness measure is selected for greatest emphasis since it underlies to annoyance and complaint. The noise awareness measure is investigated and errors in its measurement are estimated through psychometric methods. Trend surface techniques are used to test the spatial regularity of awareness, annoyance, and complaint. As hypothesized, awareness is regular in space, annoyance less so, and complaint is random. Through multiple regression analysis noise awareness is tested against socio-economic measures, noise exposure measures, attitudes, and special interest. Noise exposure variables account for the largest part of the variation in noise awareness. A trend surface analysis is conducted on the values of awareness predicted by a large number of exposure, attitude, and other variables. The process is repeated for the residual values from the multiple regression. Predicted values are systematic in space but the residual values are largely random. The predicted values are mapped and compared with the actual smoothed awareness response surface. The two maps correspond well. It is concluded that noise exposure corrected for ambient noise levels adequately approximates the noise awareness response surface. Title: Spatial variations in the intra-urban response to a noise source Author: Conder, Wilbur David Year: 1973 Most research on the urban sonic environment has been recent. One finding has been that physical noise exposure indices calibrate poorly with human noise response. The vagaries of human response to noise have given impetus to research to isolate the factors that differentiate human response to noise. The present thesis continues this research. The thesis specifies human noise response to occur on three levels: awareness, annoyance, and complaint. The factors that structure each level of noise response are identified in the published Iiterature. Noise awareness is a function of noise exposure. Noise annoyance is a function of noise exposure to a lesser degree. In addition annoyance is structured by attitudes toward the noise source, special interests in its economic benefits and personal susceptibility to noise irritation. Complaint concerning noise involves the previous factors plus an affluence or socio-economic component. The trend as one moves upward in the noise response hierarchy is for the structuring factors to become specific to individuals rather than location. Hence, noise awareness with respect to a stationary noise source will vary spatially, while complaint will be random in space. In testing these premises the author has made use of noise exposure indices for Portland International Airport and a social survey of response in the area surrounding the airport. The noise exposure indices were supplied by the consulting firm of Bolt, Beranek, and Newman Inc. and the social survey was conducted and tabulated by the Center for Population Research and Census at Portland State University. Multivariate methods were used for testing the premises concerning the hierarchical relationships between awareness, annoyance, and complaint.The variables representing awareness, annoyance, and complaint are quantified from the survey data through principle component and factor scores computer programs. The noise awareness measure is selected for greatest emphasis since it underlies to annoyance and complaint. The noise awareness measure is investigated and errors in its measurement are estimated through psychometric methods. Trend surface techniques are used to test the spatial regularity of awareness, annoyance, and complaint. As hypothesized, awareness is regular in space, annoyance less so, and complaint is random. Through multiple regression analysis noise awareness is tested against socio-economic measures, noise exposure measures, attitudes, and special interest. Noise exposure variables account for the largest part of the variation in noise awareness. A trend surface analysis is conducted on the values of awareness predicted by a large number of exposure, attitude, and other variables. The process is repeated for the residual values from the multiple regression. Predicted values are systematic in space but the residual values are largely random. The predicted values are mapped and compared with the actual smoothed awareness response surface. The two maps correspond well. It is concluded that noise exposure corrected for ambient noise levels adequately approximates the noise awareness response surface. Close

• 10. [Article] Effects of Light Rail Transit in Portland: Implications for Transit-Oriented Development Design Concepts

  In the Portland, Oregon, region many local planners have embraced the neotraditional planning concept in the form of transit-oriented development (TOD). One of the primary components of transit-oriented ...

  Citation × Citation Citation Abstract Copy Title: Effects of Light Rail Transit in Portland: Implications for Transit-Oriented Development Design Concepts Author: Dueker, Kenneth, Bianco, Martha J. Year: 1998 In the Portland, Oregon, region many local planners have embraced the neotraditional planning concept in the form of transit-oriented development (TOD). One of the primary components of transit-oriented development, light rail transit (LRT), has been in place in Portland long enough to provide data for analysis. Because neotraditional planners often emphasize LRT as a crucial element in decreasing auto use and in encouraging high-density development, this paper examines the effects of LRT in the Portland region including mode share, density, and property values. The empirical analysis provides evidence that light rail alone has not been sufficient to have an appreciable impact on development patterns, residential density, auto ownership, and transit modal behavior, although there has been some positive effect of rail on single-family property values. There has also been less of a decline in transit use and slower growth in two-car households in the LRT corridor as compared to a parallel bus corridor. The small positive effects of LRT may indicate the beginning of a self-selection in housing location choice wherein persons desiring rail transit choose to live where it is available. This assessment of the evidence in terms of impacts on development trends indicates the extent to which consumer preferences have responded to LRT investments. This kind of assessment is needed to provide the basis for estimating travel mode shares and market shares for dispersed and concentrated development forms. Examination of data suggests that it may be advisable for planners to entertain more modest expectations of LRT. Title: Effects of Light Rail Transit in Portland: Implications for Transit-Oriented Development Design Concepts Author: Dueker, Kenneth, Bianco, Martha J. Year: 1998 In the Portland, Oregon, region many local planners have embraced the neotraditional planning concept in the form of transit-oriented development (TOD). One of the primary components of transit-oriented development, light rail transit (LRT), has been in place in Portland long enough to provide data for analysis. Because neotraditional planners often emphasize LRT as a crucial element in decreasing auto use and in encouraging high-density development, this paper examines the effects of LRT in the Portland region including mode share, density, and property values. The empirical analysis provides evidence that light rail alone has not been sufficient to have an appreciable impact on development patterns, residential density, auto ownership, and transit modal behavior, although there has been some positive effect of rail on single-family property values. There has also been less of a decline in transit use and slower growth in two-car households in the LRT corridor as compared to a parallel bus corridor. The small positive effects of LRT may indicate the beginning of a self-selection in housing location choice wherein persons desiring rail transit choose to live where it is available. This assessment of the evidence in terms of impacts on development trends indicates the extent to which consumer preferences have responded to LRT investments. This kind of assessment is needed to provide the basis for estimating travel mode shares and market shares for dispersed and concentrated development forms. Examination of data suggests that it may be advisable for planners to entertain more modest expectations of LRT. Close