Introduction -- Part I: Vulnerable Populations -- Automobile Debt, Delinquency and the COVID-19 Crisis: Impacts on Vulnerable Populations -- A Bus Home: Impact of COVID-19 on Homelessness in Transit Environments -- Impacts of COVID-19 on Workers in the Transportation Gig Economy: Safety, Equity, and Sustainability -- Shelter-in-Place Orders and their Impacts on At-Risk Groups -- Part II: Economy -- The Pandemic and its Impacts on California Transportation Finance -- COVID-19 Impacts on Urban Freight Distribution: A Supply and Demand Analysis -- Understanding the Impacts of COVID-19 on Food Shopping -- Understanding and Modelling the Impacts of Covid-19 on Freight Trucking Activity -- Part III: Environment and Safety -- Changes in Traffic Patterns and Localized Air Quality during the Pandemic -- How Much Further Does Emission Pollution Need to Decrease Before We Achieve Ozone Benefits? Observations During the Pandemic -- Measuring Changes in Traffic Patterns due to COVID-19 -- Highway Crashes in California during the Pandemic: Insights and Considerations -- Part IV: Mobility and Travel -- Travel Behavior Changes Associated with the COVID-19 Pandemic -- Surveying the Impact of Transit on COVID-19 Dispersion -- Walking and Bicycling in the Time of COVID-19 -- Telecommuting in California: Changes Due to the COVID-19 Pandemic -- Part V: Responses -- The Future of Public Transit and Shared Mobility: Scenario Planning in Response to COVID-19 Recovery -- Double the Trouble: A Playbook for Evacuations during COVID-19 -- How the Pandemic Is Changing Public Transit -- Impact of COVID-19 Recovery Policies on Public Transportation Systems -- Responding to the Pandemic Crises: Monitoring of Bus Transit in Bat Area -- Conclusions.