presentation

UCLA Lake Arrowhead Conference 2020

presentation

Pavement Financial and Environmental Sustainability; CA Asphalt Pavement Association Statewide Technical Committee Meeting

presentation

Pavement Financial and Environmental Sustainability: Some Best Practices; San Diego County Building Better Roads Working Group

research report

Carbon Neutrality Study 1:Driving California’s Transportation Emissions to Zero

Abstract

The purpose of this study overall is to explore the policy pathways to achieve a zero-carbon transportation system in California by 2045. The purpose of this synthesis report is to describe the existing state of knowledge and policy related to energy use and greenhouse gas (GHG) emissions in the transportation sector, especially in California. It is an interim product of the larger study, which will use this report as the baseline and policy context sections. The report comprises four sections. Section 1 provides an overview of the major components of transportation systems and how those components interact. Section 2 explores key underlying concepts in transportation, including equity, health, employment, and environmental justice (EJ). Section 3 discusses California’s current transportation-policy landscape. Section 4 analyzes projected social, environmental, and economic outcomes of transportation under a “business as usual (BAU)” scenario—i.e., a scenario with no significant transportation-policy changes.

policy brief

Why Do Some Transit Agencies Form Shared-Use Mobility Partnerships while Others Do Not?

Publication Date

October 1, 2020

Author(s)

Sara Kazemian, Susan Pike

Abstract

Ridehail services such as Uber and Lyft present new, flexible travel options. Integrating these services with existing public transit could reduce costs, facilitate more transit use, and improve access. To realize these benefits, a growing number of transit agencies are exploring partnerships with ridehail and other shared-use mobility companies, such as bikesharing and carsharing services. Under such partnerships transit agencies typically subsidize shareduse mobility services for passengers connecting to transit stations or traveling when transit service is limited or unavailable. If successful, these partnerships could serve as part of a new model of environmentally sustainable, costeffective, and equitable public transportation. However, only a few jurisdictions have implemented successful partnerships. Transit agencies that have not pursued these partnerships have expressed concerns about cost, liability, regulatory issues, and data sharing. Little is known about what prompts some transit providers to pursue these partnerships while others do not. Researchers at UC Davis surveyed 37 transit agencies and interviewed seven transit agency professionals over two years to better understand why transit agencies pursue shared-use mobility partnerships, the factors that influence partnership formation, and barriers that prevent or slow the formation of partnerships.

policy brief

When is Public Transit Too Crowded, and How Has This Changed During the Pandemic?

Abstract

One of the first measures that U.S. public health authorities recommended in response to the COVID-19 pandemic was social distancing; U.S. Centers for Disease Control (CDC) guidelines recommended that people “stay at least 6 feet (about 2 arms’ length) from other people who are not from [their] household in both indoor and outdoor spaces.”1 Public transit agencies had to then figure out what social distancing meant for their vehicles and riders. To track and evaluate transit operator implementation of social distancing recommendations, UCLA Institute of Transportation Studies (ITS) researchers searched for and reviewed the websites of 200 transit agencies across the U.S. There is no industrywide standard for vehicle crowding before the pandemic, nor is there one now — as definitions of socially distanced transit vary widely. This policy brief summarizes what the researchers learned about agency definitions of crowding before and during the COVID-19 pandemic.

policy brief

A Checklist of Immediate Actions for Addressing COVID-19 as Part of Evacuation Planning

Abstract

Well planned and coordinated evacuations are critical to saving lives during natural disasters (e.g., hurricanes, wildfires) and human-caused disasters (e.g., chemical spills, terrorism). To complicate matters, recent wildfires in the western United States (U.S.) and multiple hurricanes in the Gulf Coast have coincided with the novel coronavirus (COVID-19) pandemic. As of mid-October 2020, the COVID-19 pandemic has led to over 7.9 million positive cases and over 217,000 deaths in the U.S. alone. Stay-at-home orders and social distancing measures that were introduced to address COVID-19 may conflict with evacuation orders that employ high-capacity evacuation vehicles (e.g., buses), congregate shelters, and resource sharing (e.g., carpools, relief supplies, food distribution). Evacuations may become spreading events for the virus if destinations (or origins) have high trans-mission rates, compounding the risks of COVID-19 and the disaster. The COVID-19 pandemic has also highlighted the risks to vulnerable populations, who may have limited mobility and lack access to essentials such as jobs, food, healthcare, and COVID-19 testing.

policy brief

UC Berkeley Develops New User-Friendly Tool to Expedite the Evaluation of Connected Automated Vehicle Technologies

Abstract

Connected Automated Vehicles (CAVs) are similar to other automated vehicles with the distinguishing difference being that CAVs obtain information about road conditionsdirectly from other vehicles and infrastructure (e.g., traffic signals, road sensors) rather than relying solely on onboard sensors. Different CAV technologies are currently being tested and evaluated to assess the prospects for future implementation. These tests involve moving CAV-equipped vehicles on a physical test track and recording how the vehicles operate under different traffic conditions (Figure 1). Since it is difficult and expensive to recreate multiple real-world driving conditions on a single test track, virtual environments are typically used to simulate different traffic conditions, such as traffic signal operation, actions by other vehicles on the road, and other scenarios. These virtual hardware-in-the-loop (HIL) tests can expedite CAV performance evaluation and inform future system implementation; however, existing HIL test systems often lack the ability to manage large amounts of test data, which limits the value and use of these tests.

policy brief

The Benefits and Challenges of Incorporating Uber and Lyft in Subsidized Ride Programs that Serve Vulnerable Populations

Abstract

Cities, transit agencies, and social service providers across the U.S. have implemented programs that provide taxi subsidies for people who have difficulty driving a car or using the regular transit system. These programs usually serve older residents and people with disabilities, though a few also serve low income users. Taxi subsidy programs provide curb-to-curb or door-to-door transportation at a fraction of the cost of paratransit.1 However, as Transportation Network Companies (TNCs), such as Uber and Lyft, have entered markets around the country, taxi availability has declined, resulting in lower levels of service. In response, many public agencies are considering the addition of TNCs to subsidized ride programs; however, the inclusion of TNCs in these programs is not straightforward. For example, agencies must evaluate the extent to which their clients need wheelchair accessible vehicles or other personal assistance. In addition, TNC platforms require users to request rides through a smartphone and use debit or credit cards for payment, which is problematic for unbanked customers and those who do not own or have access to a smartphone.