2025
Ong, Paul; Pech, Chhandara; Chung, Casey; Wasserman, Jacob L.
Racial Segregation in Pasadena: The Role of Freeway Development and Institutional Mechanisms Technical Report
2025.
Abstract | Links | BibTeX | Tags: displacement, freeways, I-210, Los Angeles County, neighborhoods, Pasadena, racial inequality, redlining, segregation, SR-710, transportation, urban renewal
@techreport{nokey,
title = {Racial Segregation in Pasadena: The Role of Freeway Development and Institutional Mechanisms},
author = {Paul Ong and Chhandara Pech and Casey Chung and Jacob L. Wasserman },
url = {https://knowledge.luskin.ucla.edu/wp-content/uploads/2025/06/Racial-Segregation-in-Pasadena.pdf},
year = {2025},
date = {2025-05-01},
urldate = {2025-05-01},
abstract = {This study examines historical and contemporary patterns of racial/ethnic segregation in Pasadena, focusing on the impacts of freeway construction and related policies. Using quantitative data, it compares Pasadena with Los Angeles County and analyzes demographic shifts around I-210 and SR-710. Findings show that freeway development and urban renewal displaced communities of color, deepened segregation, and reinforced economic polarization. Despite these barriers, residents of color organized resistance and pursued legal remedies, leaving a legacy that continues to shape inequality today.},
keywords = {displacement, freeways, I-210, Los Angeles County, neighborhoods, Pasadena, racial inequality, redlining, segregation, SR-710, transportation, urban renewal},
pubstate = {published},
tppubtype = {techreport}
}
Ong, Paul M.; Pech, Chhandara; Wasserman, Jacob L.; Ramirez, Andres F.; Loukaitou-Sideris, Anastasia; Ullmann, Leila; Riley, Megan
Further Implications of Freeway Siting in California: Freeway Development and Communities of Color in Colton, Fresno, and San Diego Technical Report
2025.
Abstract | Links | BibTeX | Tags: demographics, equity, neighborhoods, transportation
@techreport{nokey,
title = {Further Implications of Freeway Siting in California: Freeway Development and Communities of Color in Colton, Fresno, and San Diego},
author = {Paul M. Ong and Chhandara Pech and Jacob L. Wasserman and Andres F. Ramirez and Anastasia Loukaitou-Sideris and Leila Ullmann and Megan Riley},
url = {https://knowledge.luskin.ucla.edu/wp-content/uploads/2025/06/eScholarship-UC-item-0b31t9sf-1-1.pdf},
year = {2025},
date = {2025-02-01},
abstract = {This study examines the consequences of freeway construction on neighborhoods of color across California, with a focus on socioeconomic changes, route selection, community reactions and resistance, and the disruptions to residents, businesses, and other assets. Expanding on three prior case studies conducted by the research team, this study incorporates three additional case studies: South Colton, West Fresno, and City Heights in San Diego. The construction of freeways was a contributing mechanism to the perpetuation of racial inequality, weakening social institutions, disrupting local economies, and physically dividing neighborhoods. However, the outcomes varied across locations. In South Colton, a freeway was ultimately not built through its community of color, though largely for reasons of construction costs. City Heights, initially a predominantly non-Hispanic white neighborhood, underwent a demographic transformation driven by white flight during a decades-long pause in freeway construction. West Fresno did face consequences from freeway development but was also unique in its diversity of residents pre-freeway, including people of color and non-Hispanic white immigrant communities. Freeway development contributed to transforming West Fresno into an overwhelming community of color. Across these cases, freeways fragmented communities, displaced residents, and reinforced pre-existing racial divides. These racialized impacts stemmed from systemic socioeconomic marginalization and exclusion of people of color in the planning process. Today, public investments aimed at reconnecting communities offer an opportunity to address the enduring harms caused by freeways. However, achieving meaningful progress will require the integration of restorative justice principles into the planning and decision-making processes.},
keywords = {demographics, equity, neighborhoods, transportation},
pubstate = {published},
tppubtype = {techreport}
}
2023
Ong, Paul M.; Pech, Chhandara; Hung-Do, Christopher; Yoon, Anne; Wasserman, Jacob L.
Stockton's Crosstown Freeway, Urban Renewal, and Asian Americans: Systemic Causes and Impacts Technical Report
2023.
Links | BibTeX | Tags: aapi, Asian Americans, built environment, california, ethnic enclaves, ethnicity, stockton, transportation
@techreport{Ong2023,
title = {Stockton's Crosstown Freeway, Urban Renewal, and Asian Americans: Systemic Causes and Impacts},
author = {Paul M. Ong and Chhandara Pech and Christopher Hung-Do and Anne Yoon and Jacob L. Wasserman},
url = {https://knowledge.luskin.ucla.edu/wp-content/uploads/2023/11/Stocktons-Crosstown-Freeway-Urban-Renewal-and-Asian-Americans.pdf},
year = {2023},
date = {2023-10-01},
keywords = {aapi, Asian Americans, built environment, california, ethnic enclaves, ethnicity, stockton, transportation},
pubstate = {published},
tppubtype = {techreport}
}
Loukaitou-Sideris, Anastasia; Handy, Susan L.; Ong, Paul M.; Barajas, Jesus M.; Wasserman, Jacob L.; Pech, Chhandara; Sanchez, Juan Carlos Garcia; Ramirez, Andres F.; Jain, Aakansha; Proussaloglou, Emmanuel; Nguyen, Andrea; Turner, Katherine; Fitzgibbon, Abigail; Kaeppelin, Francois; Ramirez, Felipe; Arenas, Marc
The Implications of Freeway Sitting in California: Four Case Studies on the Effects of Freeways on Neighborhoods of Color Technical Report
2023.
Links | BibTeX | Tags: built environment, california, environment, ethnic enclaves, ethnicity, minority, neighborhoods, transportation
@techreport{Loukaitou-Sideris2023,
title = {The Implications of Freeway Sitting in California: Four Case Studies on the Effects of Freeways on Neighborhoods of Color},
author = {Anastasia Loukaitou-Sideris and Susan L. Handy and Paul M. Ong and Jesus M. Barajas and Jacob L. Wasserman and Chhandara Pech and Juan Carlos Garcia Sanchez and Andres F. Ramirez and Aakansha Jain and Emmanuel Proussaloglou and Andrea Nguyen and Katherine Turner and Abigail Fitzgibbon and Francois Kaeppelin and Felipe Ramirez and Marc Arenas},
url = {https://knowledge.luskin.ucla.edu/wp-content/uploads/2023/11/The-Implications-of-Freeway-Siting-in-California.pdf},
year = {2023},
date = {2023-03-01},
urldate = {2023-03-01},
keywords = {built environment, california, environment, ethnic enclaves, ethnicity, minority, neighborhoods, transportation},
pubstate = {published},
tppubtype = {techreport}
}
2022
Ong, Paul M.; Pech, Chhandara; Green, Tiffany; Padgett, Allie; Yoon, Anne; Wasserman, Jacob L.
The Spatial Dilemma of Sustainable Transportation and Just Affordable Housing: Part II, Low-income Housing Tax Credits Technical Report
2022.
Links | BibTeX | Tags: affordable housing, equity, housing, housing tax credits, low-income, transportation
@techreport{Ong2022b,
title = {The Spatial Dilemma of Sustainable Transportation and Just Affordable Housing: Part II, Low-income Housing Tax Credits},
author = {Paul M. Ong and Chhandara Pech and Tiffany Green and Allie Padgett and Anne Yoon and Jacob L. Wasserman},
url = {https://knowledge.luskin.ucla.edu/wp-content/uploads/2022/09/Spatial-Dilemma-of-Sustainable-Transportation-and-Just-Affordable-Housing-Part-II.pdf},
year = {2022},
date = {2022-09-13},
keywords = {affordable housing, equity, housing, housing tax credits, low-income, transportation},
pubstate = {published},
tppubtype = {techreport}
}
Ong, Paul M.; Pech, Chhandara; Green, Tiffany; Padgett, Allie; Yoon, Anne; Wasserman, Jacob L.
The Spatial Dilemma of Sustainable Transportation and Just Affordable Housing: Part I, Housing Choice Vouchers Technical Report
2022.
Links | BibTeX | Tags: affordable housing, equity, housing, housing choice voucher, low-income, section 8, transportation
@techreport{Ong2022,
title = {The Spatial Dilemma of Sustainable Transportation and Just Affordable Housing: Part I, Housing Choice Vouchers},
author = {Paul M. Ong and Chhandara Pech and Tiffany Green and Allie Padgett and Anne Yoon and Jacob L. Wasserman},
url = {https://knowledge.luskin.ucla.edu/wp-content/uploads/2022/09/Spatial-Dilemma-of-Sustainable-Transportation-and-Just-Affordable-Housing-Part-I.pdf},
year = {2022},
date = {2022-09-13},
urldate = {2022-09-13},
keywords = {affordable housing, equity, housing, housing choice voucher, low-income, section 8, transportation},
pubstate = {published},
tppubtype = {techreport}
}
Ong, Paul M; Pech, Chhandara; Pascual, Justine; Gonzalez, Silvia R.; Ong, Jonathan; Pierce, Gregory; Brozen, Madeline
Screening Method and Map for Evaluating Transportation Access Disparities and Other Built Environment-Related Determinants of Health Technical Report
2022.
Links | BibTeX | Tags: built environment, disparity, inequality, transportation, transportation analytics
@techreport{ong2020bfb,
title = {Screening Method and Map for Evaluating Transportation Access Disparities and Other Built Environment-Related Determinants of Health},
author = {Paul M Ong and Chhandara Pech and Justine Pascual and Silvia R. Gonzalez and Jonathan Ong and Gregory Pierce and Madeline Brozen},
url = {https://knowledge.luskin.ucla.edu/wp-content/uploads/2022/03/CARB_Final-Report_18RD021_3.7.22.pdf},
year = {2022},
date = {2022-03-07},
urldate = {2022-03-07},
keywords = {built environment, disparity, inequality, transportation, transportation analytics},
pubstate = {published},
tppubtype = {techreport}
}
2021
Ong, Paul M; Bryant, Chelsey; Gonzalez, Silvia R.; Garrett, Mark; Tadayon, Jared; Pech, Chhandara
Assessing the Incorporation of Racial Equity into Analytical and Modeling Practices in Transportation Planning Technical Report
2021.
Links | BibTeX | Tags: california, inequality, transportation, transportation analytics, vulnerable communities
@techreport{nokey,
title = {Assessing the Incorporation of Racial Equity into Analytical and Modeling Practices in Transportation Planning },
author = {Paul M Ong and Chelsey Bryant and Silvia R. Gonzalez and Mark Garrett and Jared Tadayon and Chhandara Pech},
url = {https://knowledge.luskin.ucla.edu/wp-content/uploads/2021/12/Assessing-the-Incorporation-of-Racial-Equity-into-Analytical-and-Modeling-Practices-in-Transportation-Planning.pdf},
year = {2021},
date = {2021-11-01},
urldate = {2021-11-01},
keywords = {california, inequality, transportation, transportation analytics, vulnerable communities},
pubstate = {published},
tppubtype = {techreport}
}
Ong, Paul M; Pech, Chhandara; Green, Tiffany; Rios, Nataly
Mobility, Accessibility and Disadvantaged Neighborhoods: Assessing Diversity in Transportation-Related Needs and Opportunities Technical Report
2021.
Links | BibTeX | Tags: california, inequality, los angeles, san joaquin county, spatial-transportation mismatch, transportation, transportation analytics, vulnerable communities
@techreport{ong2020bgbb,
title = {Mobility, Accessibility and Disadvantaged Neighborhoods: Assessing Diversity in Transportation-Related Needs and Opportunities},
author = {Paul M Ong and Chhandara Pech and Tiffany Green and Nataly Rios},
url = {https://knowledge.luskin.ucla.edu/wp-content/uploads/2022/07/ca21-3431-finalreport-a11y.pdf},
year = {2021},
date = {2021-06-01},
urldate = {2021-06-01},
keywords = {california, inequality, los angeles, san joaquin county, spatial-transportation mismatch, transportation, transportation analytics, vulnerable communities},
pubstate = {published},
tppubtype = {techreport}
}
Ong, Paul M.; Gonzalez, Silvia R.; Potter, Megan; Pech, Chhandara; Fitzgibbon, Abigail; Ong, Jonathan
Draft TRANSPORTATION DISPARITIES MAPPING TOOL USER GUIDE Technical Manual
2021.
Links | BibTeX | Tags: technical manual, transportation
@manual{Ong2021b,
title = {Draft TRANSPORTATION DISPARITIES MAPPING TOOL USER GUIDE},
author = {Paul M. Ong and Silvia R. Gonzalez and Megan Potter and Chhandara Pech and Abigail Fitzgibbon and Jonathan Ong},
url = {https://knowledge.luskin.ucla.edu/wp-content/uploads/2021/05/CNK-CARB-User-Guide_4.6.2021.pdf},
year = {2021},
date = {2021-04-06},
keywords = {technical manual, transportation},
pubstate = {published},
tppubtype = {manual}
}
0000
Ong, Paul M; Pech, Chhandara; Hung-Do, Christopher; Yoon, Anne; Wasserman, Jacob L.
Stockton's Crosstown Freeway, Urban Renewal, and Asian Americans: Systemic Causes and Impacts Technical Report
0000.
Links | BibTeX | Tags: aapi, Asian Americans, built environment, environment, ethnic enclaves, neighborhoods, stockton, transportation
@techreport{Ong2023,
title = {Stockton's Crosstown Freeway, Urban Renewal, and Asian Americans: Systemic Causes and Impacts},
author = {Paul M Ong and Chhandara Pech and Christopher Hung-Do and Anne Yoon and Jacob L. Wasserman },
url = {https://knowledge.luskin.ucla.edu/wp-content/uploads/2023/11/Stocktons-Crosstown-Freeway-Urban-Renewal-and-Asian-Americans.pdf},
keywords = {aapi, Asian Americans, built environment, environment, ethnic enclaves, neighborhoods, stockton, transportation},
pubstate = {published},
tppubtype = {techreport}
}