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• 41. [Article] Improving Trip Generation Methods for Livable Communities

  Recent efforts to improve trip generation data available for transportation impact analysis of new development include the collection of multimodal trip generation data, development of models that account ...

  Citation × Citation Citation Abstract Copy Title: Improving Trip Generation Methods for Livable Communities Author: Clifton, Kelly J., Larco, Nico, Currans, Kristina Marie, Wettach-Glosser, Jael Year: 2017 Recent efforts to improve trip generation data available for transportation impact analysis of new development include the collection of multimodal trip generation data, development of models that account for the built environment, and new recommendations for practice. Building on a long line of research on transportation and built environment, many studies have identified important features of the surrounding built environment that most impact trip rates and mode shares, building on a long line of research on transportation and the built environment. Despite these improvements in data and methods, less attention is placed on identifying the conditions of the site itself and the immediate surrounding environment that influence trip generation and mode choice. To fill this gap, this study builds upon previous work (Contextual Influences on Trip Generation (Project Number: OTREC 2011-407), 2012), re-examines the information collected in that study, and includes new site-level observations. The objective of this study is to examine establishment multimodal trip generation more closely from a finer-grained scale and identify site-level attributes of the built environment that help explain multimodal trip generation. From this, we have the additional objective of developing a framework for trip generation analysis that takes findings from this study into consideration. We placed emphasis on those sites in our previous study with a discord between the expected travel patterns, based upon the larger urban context and built environment of the site, and the observed. The research approach will make use of mixed methods. In addition to using archived data from the previous study, site visits provided direct observation of the overall performance of the site, including travel patterns on and around the site as well as specific site configuration, urban design details and traffic operations. The analysis of this combination of data provided a more complete picture of site-level trip generation and our findings highlight the influence of: people living nearby and using the site; the nature of the land use on the site; the development along arterial roadways; site permeability and access; and the local culture around walking and cycling. Finally, this report ends by reflecting on the numerous concerns identified from practice, the research findings from various recent studies, and the need for a sustainable process for evaluating the transportation impacts of new land development. We present a potential framework to advance the methods for how site plans fit into neighborhood and regional planning, using locally defined standards and goals. Here, we de-emphasize the site and its immediate environs as the primary (and only) scale of analysis and lessen the reliance on the problematic methodologies for estimating site-level travel demand. Rather, we argue that transportation impact analysis would benefit by first taking a district, neighborhood or area-wide approach with attention to the urban context—the built and social environment—where a site is located. At this larger scale, there is a better ability to understand the various elements that work together to shape travel demand and allows for a better assessment of how a specific site proposal will integrate into this larger context. This effort involves several faculty from across the country, including Kelly Clifton (PSU Engineering) and Nico Larco (UO Architecture) from our consortium and Susan Handy (UC Davis Environmental Studies) and Robert Schneider (UW Milwaukee Planning) as consultants/advisors. Title: Improving Trip Generation Methods for Livable Communities Author: Clifton, Kelly J., Larco, Nico, Currans, Kristina Marie, Wettach-Glosser, Jael Year: 2017 Recent efforts to improve trip generation data available for transportation impact analysis of new development include the collection of multimodal trip generation data, development of models that account for the built environment, and new recommendations for practice. Building on a long line of research on transportation and built environment, many studies have identified important features of the surrounding built environment that most impact trip rates and mode shares, building on a long line of research on transportation and the built environment. Despite these improvements in data and methods, less attention is placed on identifying the conditions of the site itself and the immediate surrounding environment that influence trip generation and mode choice. To fill this gap, this study builds upon previous work (Contextual Influences on Trip Generation (Project Number: OTREC 2011-407), 2012), re-examines the information collected in that study, and includes new site-level observations. The objective of this study is to examine establishment multimodal trip generation more closely from a finer-grained scale and identify site-level attributes of the built environment that help explain multimodal trip generation. From this, we have the additional objective of developing a framework for trip generation analysis that takes findings from this study into consideration. We placed emphasis on those sites in our previous study with a discord between the expected travel patterns, based upon the larger urban context and built environment of the site, and the observed. The research approach will make use of mixed methods. In addition to using archived data from the previous study, site visits provided direct observation of the overall performance of the site, including travel patterns on and around the site as well as specific site configuration, urban design details and traffic operations. The analysis of this combination of data provided a more complete picture of site-level trip generation and our findings highlight the influence of: people living nearby and using the site; the nature of the land use on the site; the development along arterial roadways; site permeability and access; and the local culture around walking and cycling. Finally, this report ends by reflecting on the numerous concerns identified from practice, the research findings from various recent studies, and the need for a sustainable process for evaluating the transportation impacts of new land development. We present a potential framework to advance the methods for how site plans fit into neighborhood and regional planning, using locally defined standards and goals. Here, we de-emphasize the site and its immediate environs as the primary (and only) scale of analysis and lessen the reliance on the problematic methodologies for estimating site-level travel demand. Rather, we argue that transportation impact analysis would benefit by first taking a district, neighborhood or area-wide approach with attention to the urban context—the built and social environment—where a site is located. At this larger scale, there is a better ability to understand the various elements that work together to shape travel demand and allows for a better assessment of how a specific site proposal will integrate into this larger context. This effort involves several faculty from across the country, including Kelly Clifton (PSU Engineering) and Nico Larco (UO Architecture) from our consortium and Susan Handy (UC Davis Environmental Studies) and Robert Schneider (UW Milwaukee Planning) as consultants/advisors. Close

• 42. [Article] Assessing State Efforts to Integrate Transportation, Land Use and Climate

  Climate change is increasingly recognized as a threat to life on earth. “Continued emission of greenhouse gases will cause further warming and long-lasting changes in all components of the climate system, ...

  Citation × Citation Citation Abstract Copy Title: Assessing State Efforts to Integrate Transportation, Land Use and Climate Author: Lewis, Rebecca, Zako, Robert Year: 2017 Climate change is increasingly recognized as a threat to life on earth. “Continued emission of greenhouse gases will cause further warming and long-lasting changes in all components of the climate system, increasing the likelihood of severe, pervasive and irreversible impacts for people and ecosystems. Limiting climate change would require substantial and sustained reductions in greenhouse gas emissions” (International Panel on Climate Change, 2014, 8). The transportation sector accounts for almost one-third of all greenhouse gas emissions (GHG) in the United States. Reducing GHG from transportation rests on the “three-legged stool” of improving vehicle efficiency, reducing the carbon content of fuels and reducing vehicle miles traveled (VMT). But “technological improvements in vehicles and fuels are likely to be offset by continuing, robust growth in VMT” (Ewing et al., 2007, 2). Thus, a crucial strategy in curbing GHG from transportation relies on reducing total VMT by promoting alternative modes of transportation hand in hand with promoting development patterns that support the use of such modes, in addition to pricing strategies (for GHG, parking, gas taxes, tolls, etc.) and lifestyle changes to shift from driving. In developing climate action plans, states have begun to acknowledge the connection between transportation and development patterns. This project explores the institutional barriers and opportunities for reducing VMT, hence GHG, through improved transportation options and smarter development patterns in four states: California, Maryland, Oregon and Washington. The research team analyzed existing policy frameworks around transportation, land use and climate change, outlining the statutory context around plans and actions within state agencies and metropolitan planning organizations (MPOs). The research team used content analysis to analyze existing plans under these agencies, and conducted interviews with over 40 stakeholders to evaluate strengths and weaknesses of state approaches. The research team assessed the existing policy framework within the case study states and offers recommendations for improving existing frameworks. Finally, lessons learned from these four states can inform other states attempting to reduce GHG from transportation. Title: Assessing State Efforts to Integrate Transportation, Land Use and Climate Author: Lewis, Rebecca, Zako, Robert Year: 2017 Climate change is increasingly recognized as a threat to life on earth. “Continued emission of greenhouse gases will cause further warming and long-lasting changes in all components of the climate system, increasing the likelihood of severe, pervasive and irreversible impacts for people and ecosystems. Limiting climate change would require substantial and sustained reductions in greenhouse gas emissions” (International Panel on Climate Change, 2014, 8). The transportation sector accounts for almost one-third of all greenhouse gas emissions (GHG) in the United States. Reducing GHG from transportation rests on the “three-legged stool” of improving vehicle efficiency, reducing the carbon content of fuels and reducing vehicle miles traveled (VMT). But “technological improvements in vehicles and fuels are likely to be offset by continuing, robust growth in VMT” (Ewing et al., 2007, 2). Thus, a crucial strategy in curbing GHG from transportation relies on reducing total VMT by promoting alternative modes of transportation hand in hand with promoting development patterns that support the use of such modes, in addition to pricing strategies (for GHG, parking, gas taxes, tolls, etc.) and lifestyle changes to shift from driving. In developing climate action plans, states have begun to acknowledge the connection between transportation and development patterns. This project explores the institutional barriers and opportunities for reducing VMT, hence GHG, through improved transportation options and smarter development patterns in four states: California, Maryland, Oregon and Washington. The research team analyzed existing policy frameworks around transportation, land use and climate change, outlining the statutory context around plans and actions within state agencies and metropolitan planning organizations (MPOs). The research team used content analysis to analyze existing plans under these agencies, and conducted interviews with over 40 stakeholders to evaluate strengths and weaknesses of state approaches. The research team assessed the existing policy framework within the case study states and offers recommendations for improving existing frameworks. Finally, lessons learned from these four states can inform other states attempting to reduce GHG from transportation. Close

• 43. [Article] Metropolitan Centers: Evaluating Local Implementation of Regional Plans and Policies

  The Denver and Salt Lake City Metropolitan Planning Organizations (MPOs) have embarked upon regional visioning strategies that promote development around higher density, mixed use centers with current ...

  Citation × Citation Citation Abstract Copy Title: Metropolitan Centers: Evaluating Local Implementation of Regional Plans and Policies Author: Margerum, Richard D., Bartholomew, Keith, Lewis, Rebecca, Parker, Robert, Dobrinich, Stephen Year: 2017 The Denver and Salt Lake City Metropolitan Planning Organizations (MPOs) have embarked upon regional visioning strategies that promote development around higher density, mixed use centers with current or future access to transit. This study examines the programs and policies in the Salt Lake City and Denver regions to examine regional vision influence on local planning and the opportunities and constraints facing centers. The research team analyzed local plans over the past several decades, interviewed planners, and examined demographic, land use and transportation characteristics in select centers across the region. We found that the regional vision had a moderate influence on local planning, due to vague definitions and criteria. However, light rail investment and market forces have had a more substantial influence—resulting in cities developing supportive transit oriented development policies. While over 100 centers have been designated, many face significant challenges to support regional goals, particularly because many light rail lines were located along rail and freeway alignments. A limited number of “tipping point centers” already contain the necessary elements to be successful with city and private investment. Many “greenfield centers” offer significant future opportunity for development, but their suburban location and infrastructure needs present significant costs and challenges. Many other “redevelopment centers” are dominated by industrial, commercial or office development, and the land use and transportation patterns within these centers present substantial hurdles that may limit their potential to achieve regional goals. Title: Metropolitan Centers: Evaluating Local Implementation of Regional Plans and Policies Author: Margerum, Richard D., Bartholomew, Keith, Lewis, Rebecca, Parker, Robert, Dobrinich, Stephen Year: 2017 The Denver and Salt Lake City Metropolitan Planning Organizations (MPOs) have embarked upon regional visioning strategies that promote development around higher density, mixed use centers with current or future access to transit. This study examines the programs and policies in the Salt Lake City and Denver regions to examine regional vision influence on local planning and the opportunities and constraints facing centers. The research team analyzed local plans over the past several decades, interviewed planners, and examined demographic, land use and transportation characteristics in select centers across the region. We found that the regional vision had a moderate influence on local planning, due to vague definitions and criteria. However, light rail investment and market forces have had a more substantial influence—resulting in cities developing supportive transit oriented development policies. While over 100 centers have been designated, many face significant challenges to support regional goals, particularly because many light rail lines were located along rail and freeway alignments. A limited number of “tipping point centers” already contain the necessary elements to be successful with city and private investment. Many “greenfield centers” offer significant future opportunity for development, but their suburban location and infrastructure needs present significant costs and challenges. Many other “redevelopment centers” are dominated by industrial, commercial or office development, and the land use and transportation patterns within these centers present substantial hurdles that may limit their potential to achieve regional goals. Close

• 44. [Article] Transportation Cost Index: A Comprehensive Performance Measure for Transportation and Land Use Systems and its Application in OR, FL, and UT

  MAP-21 and state laws are placing increasing emphasis on using comprehensive transportation performance measures that include mobility, safety, economy, livability, equity, and environmental to guide transportation ...

  Citation × Citation Citation Abstract Copy Title: Transportation Cost Index: A Comprehensive Performance Measure for Transportation and Land Use Systems and its Application in OR, FL, and UT Author: Wang, Liming, Liu, Jenny H Year: 2017 MAP-21 and state laws are placing increasing emphasis on using comprehensive transportation performance measures that include mobility, safety, economy, livability, equity, and environmental to guide transportation decision-making. One of the toughest challenges keeping DOTs and MPOs from adopting comprehensive measures in the decision process is the lack of performance measures allowing consistent comparison of multimodal performance over time and across geographic areas. This project advances a transportation cost index (TCI) initially proposed by Oregon DOT from a proof-of-concept stage to implementation and operational use at the state, MPO, and community levels. After pilot tests and early adoption in Oregon, we test TCI with varying data sources available in different states and make the software more user-friendly. Working with communities in Florida and Utah, we will test and apply TCI to regions in Florida and Utah and compare the patterns of TCI across Oregon, Florida, and Utah. Title: Transportation Cost Index: A Comprehensive Performance Measure for Transportation and Land Use Systems and its Application in OR, FL, and UT Author: Wang, Liming, Liu, Jenny H Year: 2017 MAP-21 and state laws are placing increasing emphasis on using comprehensive transportation performance measures that include mobility, safety, economy, livability, equity, and environmental to guide transportation decision-making. One of the toughest challenges keeping DOTs and MPOs from adopting comprehensive measures in the decision process is the lack of performance measures allowing consistent comparison of multimodal performance over time and across geographic areas. This project advances a transportation cost index (TCI) initially proposed by Oregon DOT from a proof-of-concept stage to implementation and operational use at the state, MPO, and community levels. After pilot tests and early adoption in Oregon, we test TCI with varying data sources available in different states and make the software more user-friendly. Working with communities in Florida and Utah, we will test and apply TCI to regions in Florida and Utah and compare the patterns of TCI across Oregon, Florida, and Utah. Close

• 45. [Article] Staff Report: In Consideration of Ordinance No. 05-1077 Amending the Regional Framework Plan and the Urban Growth Management Functional Plan Relating to Nature in Neighborhoods

  Citation × Citation Citation Abstract Copy Title: Staff Report: In Consideration of Ordinance No. 05-1077 Amending the Regional Framework Plan and the Urban Growth Management Functional Plan Relating to Nature in Neighborhoods Author: Cotugno, Andy, Deffebach, Chris Year: 2005 Title: Staff Report: In Consideration of Ordinance No. 05-1077 Amending the Regional Framework Plan and the Urban Growth Management Functional Plan Relating to Nature in Neighborhoods Author: Cotugno, Andy, Deffebach, Chris Year: 2005 Close

• 46. [Article] Commute Well-Being Differences by Mode: Evidence from Portland, Oregon, USA

  To understand the impact of daily travel on personal and societal well-being, measurement techniques that go beyond satisfaction-based measures of travel are used. Such metrics are increasingly important ...

  Citation × Citation Citation Abstract Copy Title: Commute Well-Being Differences by Mode: Evidence from Portland, Oregon, USA Author: Smith, Oliver Year: 2017 To understand the impact of daily travel on personal and societal well-being, measurement techniques that go beyond satisfaction-based measures of travel are used. Such metrics are increasingly important for evaluating transportation and land-use policies. This study examines commute well-being, a multi-item measure of how one feels about the commute to work, and its influences using data from a web-based survey that was distributed to Portland, Oregon, U.S.A. workers. Valid surveys (n=828) were compiled from three roughly equally sized groups based on mode: bike, transit and car users. Average distances between work and home varied significantly among the three groups. Descriptive results show that commute well-being varies widely across the sample. Those who bike to work have significantly higher commute well-being than transit and car commuters. A multiple linear regression model shows that along with travel mode, traffic congestion, travel time, income, health, job satisfaction and residential satisfaction also play important individual roles in shaping commute well-being. While more analysis is needed, these results support findings in previous research that commuting by bike enhances well-being while congestion detracts from well-being. Implications for future research and sustainable transportation policy efforts are discussed. Title: Commute Well-Being Differences by Mode: Evidence from Portland, Oregon, USA Author: Smith, Oliver Year: 2017 To understand the impact of daily travel on personal and societal well-being, measurement techniques that go beyond satisfaction-based measures of travel are used. Such metrics are increasingly important for evaluating transportation and land-use policies. This study examines commute well-being, a multi-item measure of how one feels about the commute to work, and its influences using data from a web-based survey that was distributed to Portland, Oregon, U.S.A. workers. Valid surveys (n=828) were compiled from three roughly equally sized groups based on mode: bike, transit and car users. Average distances between work and home varied significantly among the three groups. Descriptive results show that commute well-being varies widely across the sample. Those who bike to work have significantly higher commute well-being than transit and car commuters. A multiple linear regression model shows that along with travel mode, traffic congestion, travel time, income, health, job satisfaction and residential satisfaction also play important individual roles in shaping commute well-being. While more analysis is needed, these results support findings in previous research that commuting by bike enhances well-being while congestion detracts from well-being. Implications for future research and sustainable transportation policy efforts are discussed. Close

• 47. [Article] Impacts of Bus Rapid Transit (BRT) on Surrounding Residential Property Values

  As bus rapid transit (BRT) grows in popularity in the United States, a better understanding of the mode’s impacts on land uses and property values is needed. Economic theory suggests, and literature has ...

  Citation × Citation Citation Abstract Copy Title: Impacts of Bus Rapid Transit (BRT) on Surrounding Residential Property Values Author: Perk, Victoria, Catalá, Martin, Mantius, Maximillian, Corcoran, Katrina Year: 2017 As bus rapid transit (BRT) grows in popularity in the United States, a better understanding of the mode’s impacts on land uses and property values is needed. Economic theory suggests, and literature has shown, that people are willing to pay higher housing costs to lower their costs of transportation to areas of economic activity. Does high-quality BRT service reliably provide such access and, thereby, increase residential property values? The hypothesis is that property values are higher closer to BRT stations, reflecting a premium for the access provided by the BRT service to various goods, services, employment, education, and recreation. There has been some work on this topic outside of the U.S.; however, due to various cultural, social, and institutional differences, those experiences may not be applicable to U.S. property values. The literature includes, to date, very little work on U.S. BRT systems’ impacts on property values using robust econometric techniques and/or spatial modeling. Further, because every BRT system is different, it is necessary to analyze additional case studies to provide a more robust understanding of how modern U.S. experiences with BRT services may affect surrounding property values. This research contributes to the relatively small body of literature on property value impacts of BRT in the U.S. by conducting a case study on Lane Transit District’s EmX BRT service (Eugene, Oregon) using econometric modeling techniques to estimate changes in property values associated with the BRT. The analysis is based on hedonic price regression analysis, where sale prices are modeled using several property characteristics that contribute to the market or sale price. The findings of this research indicate that the EmX BRT system does positively impact surrounding single-family home sale prices. Results are statistically significant yet, as expected, relatively small in magnitude. An interesting finding is that the impact of the EmX stations on property values increased in each of the three periods examined in this study. For 2005 single-family home sales, the price increased $823 on average for every 100 meters closer to a station. In 2010, the marginal impact increased to an average of $1,056 for every 100 meters closer to a station. In 2016, every 100 meters closer to a station adds an average of $1,128 to a home’s sale price. These results provide further insight into how BRT services can enhance the livability and economic development in a community, and provide policymakers and the transit industry throughout the U.S. with the best information possible to make informed transit investment decisions in their communities. Title: Impacts of Bus Rapid Transit (BRT) on Surrounding Residential Property Values Author: Perk, Victoria, Catalá, Martin, Mantius, Maximillian, Corcoran, Katrina Year: 2017 As bus rapid transit (BRT) grows in popularity in the United States, a better understanding of the mode’s impacts on land uses and property values is needed. Economic theory suggests, and literature has shown, that people are willing to pay higher housing costs to lower their costs of transportation to areas of economic activity. Does high-quality BRT service reliably provide such access and, thereby, increase residential property values? The hypothesis is that property values are higher closer to BRT stations, reflecting a premium for the access provided by the BRT service to various goods, services, employment, education, and recreation. There has been some work on this topic outside of the U.S.; however, due to various cultural, social, and institutional differences, those experiences may not be applicable to U.S. property values. The literature includes, to date, very little work on U.S. BRT systems’ impacts on property values using robust econometric techniques and/or spatial modeling. Further, because every BRT system is different, it is necessary to analyze additional case studies to provide a more robust understanding of how modern U.S. experiences with BRT services may affect surrounding property values. This research contributes to the relatively small body of literature on property value impacts of BRT in the U.S. by conducting a case study on Lane Transit District’s EmX BRT service (Eugene, Oregon) using econometric modeling techniques to estimate changes in property values associated with the BRT. The analysis is based on hedonic price regression analysis, where sale prices are modeled using several property characteristics that contribute to the market or sale price. The findings of this research indicate that the EmX BRT system does positively impact surrounding single-family home sale prices. Results are statistically significant yet, as expected, relatively small in magnitude. An interesting finding is that the impact of the EmX stations on property values increased in each of the three periods examined in this study. For 2005 single-family home sales, the price increased $823 on average for every 100 meters closer to a station. In 2010, the marginal impact increased to an average of $1,056 for every 100 meters closer to a station. In 2016, every 100 meters closer to a station adds an average of $1,128 to a home’s sale price. These results provide further insight into how BRT services can enhance the livability and economic development in a community, and provide policymakers and the transit industry throughout the U.S. with the best information possible to make informed transit investment decisions in their communities. Close

• 48. [Article] Do TODs Make a Difference? MAX Yellow Line Portland, Oregon

  This analysis was intended to help answer the following policy questions: Q1: Are TODs attractive to certain NAICS sectors? Q2: Do TODs generate more jobs in certain NAICS sectors? Q3: Are firms in TODs ...

  Citation × Citation Citation Abstract Copy Title: Do TODs Make a Difference? MAX Yellow Line Portland, Oregon Author: Liu, Jenny H., Mumuni, Zakari, Berggren, Matt, Miller, Matt, Miller, Arthur C., Ewing, Reid Year: 2014 This analysis was intended to help answer the following policy questions: Q1: Are TODs attractive to certain NAICS sectors? Q2: Do TODs generate more jobs in certain NAICS sectors? Q3: Are firms in TODs more resilient to economic downturns? Q4: Do TODs create more affordable housing measured as H+T? Q5: Do TODs improve job accessibility for those living in or near them? The first question investigates which types of industries are actually transit oriented. Best planning practices call for a mix of uses focused around housing and retail, but analysis provides some surprises. The second question tests the economic development effects of transit—do locations provided with transit actually experience employment growth? The third question is intended to determine the ability of employers near transit to resist losing jobs; or having lost jobs, to rapidly regain them. The fourth research question confronts the issue of affordable housing and transit. Transit is often billed as a way to provide affordable housing by matching low-cost housing with employment. Yet proximity to transit stations is also expected to raise land values. Proximity to transit, however, may increase actual affordability, regardless of increases in housing costs, because of the reduction in transportation costs. The final research question considers the relationship between workplace and residence locations. To be able to commute by transit, both the workplace and home must be near transit. Effective transit should increase both the number and share of workers who work and live along the transit corridor. Title: Do TODs Make a Difference? MAX Yellow Line Portland, Oregon Author: Liu, Jenny H., Mumuni, Zakari, Berggren, Matt, Miller, Matt, Miller, Arthur C., Ewing, Reid Year: 2014 This analysis was intended to help answer the following policy questions: Q1: Are TODs attractive to certain NAICS sectors? Q2: Do TODs generate more jobs in certain NAICS sectors? Q3: Are firms in TODs more resilient to economic downturns? Q4: Do TODs create more affordable housing measured as H+T? Q5: Do TODs improve job accessibility for those living in or near them? The first question investigates which types of industries are actually transit oriented. Best planning practices call for a mix of uses focused around housing and retail, but analysis provides some surprises. The second question tests the economic development effects of transit—do locations provided with transit actually experience employment growth? The third question is intended to determine the ability of employers near transit to resist losing jobs; or having lost jobs, to rapidly regain them. The fourth research question confronts the issue of affordable housing and transit. Transit is often billed as a way to provide affordable housing by matching low-cost housing with employment. Yet proximity to transit stations is also expected to raise land values. Proximity to transit, however, may increase actual affordability, regardless of increases in housing costs, because of the reduction in transportation costs. The final research question considers the relationship between workplace and residence locations. To be able to commute by transit, both the workplace and home must be near transit. Effective transit should increase both the number and share of workers who work and live along the transit corridor. Close

• 49. [Article] Settlement Patterns in the Portland Region: A Historical Overview

  Cities exist because they serve two basic functions--to generate economic value and to sustain social and cultural values. In the most fundamental sense, the interaction of these two urban roles determines ...

  Citation × Citation Citation Abstract Copy Title: Settlement Patterns in the Portland Region: A Historical Overview Author: Abbott, Carl Year: 1994 Cities exist because they serve two basic functions--to generate economic value and to sustain social and cultural values. In the most fundamental sense, the interaction of these two urban roles determines the growth of metropolitan areas and patterns of land use and settlement within those urban areas. Within this framework of metropolitan functions, five factors have strongly affected American urban settlement patterns. The first section of this report briefly introduces these broad forces. The central section traces in detail the ways in which the factors have shaped settlement and land use in the Portland area over the last 150 years. The concluding section suggests new ways in which these five basic factors may operate in the coming decades and briefly analyzes possible new effects on the region's settlement patterns. Title: Settlement Patterns in the Portland Region: A Historical Overview Author: Abbott, Carl Year: 1994 Cities exist because they serve two basic functions--to generate economic value and to sustain social and cultural values. In the most fundamental sense, the interaction of these two urban roles determines the growth of metropolitan areas and patterns of land use and settlement within those urban areas. Within this framework of metropolitan functions, five factors have strongly affected American urban settlement patterns. The first section of this report briefly introduces these broad forces. The central section traces in detail the ways in which the factors have shaped settlement and land use in the Portland area over the last 150 years. The concluding section suggests new ways in which these five basic factors may operate in the coming decades and briefly analyzes possible new effects on the region's settlement patterns. Close

• 50. [Article] Comparing Mode Shares for Non-residential Destinations in Urban and Suburban Environments

  To ensure facility for multimodal transportation is one of the most important concerns in today’s transportation sector, with initiatives being taken to make multimodal transportation popular. The built ...

  Citation × Citation Citation Abstract Copy Title: Comparing Mode Shares for Non-residential Destinations in Urban and Suburban Environments Author: Subrin, Tasnia Year: 2016 To ensure facility for multimodal transportation is one of the most important concerns in today’s transportation sector, with initiatives being taken to make multimodal transportation popular. The built environment variables have a strong relationship with transportation mode choice, but whether that relationship holds true in urban and suburban neighborhoods in the same manner has not been considered. Using data for three non-residential land uses, this research explores whether the built environment variables in suburban areas influences mode share like it does in urban areas. We used survey data conducted at the establishments regarding respondents’ travel characteristics from a previous study, as well as the built environment characteristics of the location around the establishments. Using mode choice and built environment data we ran multiple regression models with a dummy variable for suburban places. The results of our regression modeling showed the differing impacts of urban and suburban environments on the mode share. This could be an important consideration for future researchers in estimating travel behavior within different environments. Our study does not define the difference in the relationship but it shows that consideration regarding this matter should be taken into account. It would be vital for investigators to understand any unexpected travel behavior to an establishment in a suburban environment. Title: Comparing Mode Shares for Non-residential Destinations in Urban and Suburban Environments Author: Subrin, Tasnia Year: 2016 To ensure facility for multimodal transportation is one of the most important concerns in today’s transportation sector, with initiatives being taken to make multimodal transportation popular. The built environment variables have a strong relationship with transportation mode choice, but whether that relationship holds true in urban and suburban neighborhoods in the same manner has not been considered. Using data for three non-residential land uses, this research explores whether the built environment variables in suburban areas influences mode share like it does in urban areas. We used survey data conducted at the establishments regarding respondents’ travel characteristics from a previous study, as well as the built environment characteristics of the location around the establishments. Using mode choice and built environment data we ran multiple regression models with a dummy variable for suburban places. The results of our regression modeling showed the differing impacts of urban and suburban environments on the mode share. This could be an important consideration for future researchers in estimating travel behavior within different environments. Our study does not define the difference in the relationship but it shows that consideration regarding this matter should be taken into account. It would be vital for investigators to understand any unexpected travel behavior to an establishment in a suburban environment. Close