Household Income and Vehicle Fuel Economy in California

This white paper presents the findings from an analysis of the fiscal implications for vehicle owners of changing from the current statewide fuel tax to a “road user charge” (RUC) based on vehicle-miles traveled (VMT). Since 1923, California’s motor vehicle fuel tax has provided revenue used to plan, construct, and maintain the state’s publicly funded transportation systems. Over time, improvements in vehicle fuel efficiency and the effects of inflation have reduced both the revenue from the fuel tax and its purchasing power. Thus, there is growing interest among policy makers for replacing the state’s per-gallon fuel tax with an RUC based on VMT. This study analyzes the 2010-2011California Household Travel Survey (CHTS) to identify the potential effects this policy change would be likely to have on households across the state. The analysis found that while daily household fuel consumption and VMT both appear to increase with household income, urban and rural households show roughly the same amount of fuel consumption and VMT. No statistically significant difference in cost was found between the two programs in any income group. This suggests that an RUC designed to collect the same amount of revenues statewide as the current fuel tax would not place a significant financial burden on California households

LIVABLE FOR ALL AGES: EVALUATING PERCEPTIONS OF COMMUNITY IN AN INTERGENERATIONAL CONTEXT

Aging-friendliness work uses a model of eight core domains to assess and achieve communities in which people are more equipped to age well, and remain in their community as they age. These domains are broken into the built environment (i.e., Housing, Transportation) and the social environment (i.e., Communication, Social Inclusion, Employment). This dissertation is centered on the efforts to make communities more aging-friendly, and focuses specifically on the Livable Lexington initiative. This dissertation utilized an exploratory study of a pre- and posttest evaluative design to pilot intergenerational discussion groups as a potential intervention. Intergenerational discussion groups were developed with the goal of changing community members’ perceptions of how aging-friendly their community is, and were a way of operationalizing Rawlsian concepts such as the Veil of Ignorance and Wide Reflective Equilibrium, with the end goal of Intergenerational Equity. The three outcome variables in the study were perceptions of 1) ability to age in place, with regard to domains, 2) overall aging-friendliness, and 3) ability to engage and participate in community activities (such as decision making). Recruited from an initial aging-friendly needs assessment developed by AARP, the intergenerational discussion groups (n = 40) exposed participants to an environment that allowed them to lead discussion around what would make their assigned core domains (i.e, housing, transportation, social inclusion, communication, employment, etc.) more aging-friendly. Participants in the discussion groups perceived a greater ability to age in place, with respect to the social environment (p \u3c .001), as well as a greater ability to engage and participate in community activities (p \u3c .001). Additionally, participants perceived their community as more aging-friendly after the intervention (p \u3c .001). The participants, however, did not perceive a greater ability to age in place, with regard to the built environment (p \u3c .001). Throughout the discussion, the results are tied back into the literature and theory, and reasons for the adverse result in the built environment are also discussed (while more time is often necessary to notice changes in the built environment). Implications for this research, as well as future recommendations are discussed, as well

Changing the Doctoral Student-Dissertation Chair Relationship Through the Article Dissertation Format

In this article, we contribute to dialogue about the capstone for most doctoral programs: the dissertation. More specifically, we explore the mentorship between doctoral student and chair and assert that using a nontraditional dissertation format affords more fulfilling relationships for the mentee and mentor. Having recently completed three article dissertations, we aim to further the discussion of doctoral capstone formats based on our experiences through autoethnographic methods and rooted in a relational mentorship framework (Ragins, 2012). We believe that the article dissertation format provided a vehicle for disrupting the typical power structure between dissertation chair and doctoral student by positioning the student as an expert writing for publication and the chair as a coach, learner, and peer-reviewer. Through sharing our co-constructed and personal narratives, we challenge readers to think about the dissertation format and its role in the critical mentoring relationship between doctoral student and dissertation chair

Scattering of Several Multiply Charged Extremal D=5 Black Holes

The moduli space metric for an arbitrary number of extremal D=5 black holes with arbitrary relatively supersymmetric charges is found.Comment: 12 pages, ReVTeX. Minor typos corrected, including an unimportant sign for which the corresponding comment was removed. One reference adde

City Best Practices to Improve Transit Operations and Safety

Public, fixed-route transit services most commonly operate on public streets. In addition, transit passengers must use sidewalks to access transit stops and stations. However, streets and sidewalks are under the jurisdiction of municipalities, not transit agencies. Various municipal policies, practices, and decisions affect transit operations, rider convenience, and passenger safety. Thus, these government entities have an important influence over the quality, safety, and convenience of transit services in their jurisdictions. This research identified municipal policies and practices that affect public transport providers’ ability to deliver transit services. They were found from a comprehensive literature review, interviews and discussions with five local transit agencies in the U.S., five public transportation experts and staff from five California cities. The city policies and practices identified fall into the following five categories: Infrastructure for buses, including bus lanes, signal treatments, curbside access; Infrastructure for pedestrians walking and bicycling to, and waiting at, transit stops and stations; Internal transportation planning policies and practices; Land development review policies; Regional and metropolitan planning organization (MPO) issues. The understanding, acknowledgment, and implementation of policies and practices identified in this report can help municipalities proactively work with local transit providers to more efficiently and effectively operate transit service and improve passenger comfort and safety on city streets

Metropolitan Transportation Commission Discretionary Transit Funding Methods Evaluation

In 2021, the Santa Clara Valley Transportation Authority (VTA) approached the Mineta Transportation Institute (MTI) with a proposal to have MTI provide an evaluation of the Metropolitan Transportation Commission’s (MTC’s) operational discretionary funding allocation policies and methods for Bay Area transit operators. The research was done in two parts. Part 1 investigated MTC’s past and current allocation methods for discretionary operational transit funding programs; Part 2 involved the evaluation of outcomes if MTC employed alternative allocation methods. After the Part 1 review of MTC’s various transit funding programs, the federal pandemic relief funds and the Transportation Development Act/State Transit Assistance (TDA/STA) funding programs were selected and evaluated in Part 2 using a set of five alternative allocation metrics and compared to actual MTC allocations. Key findings include: (1) the population-based metric produced the largest increase for VTA’s pandemic relief funds, with VTA receiving 221 percent more than MTC actually allocated in 2020 and 2021, but the San Francisco Municipal Transportation Agency (SFMTA) receiving 64 percent less; (2) the ridership-based metric yielded the smallest amount of VTA pandemic funding, but high ridership operators such as SFMTA would have a 41 percent increase; (3) the population-based metric produced the largest increase in STA funding to VTA but would come at the expense of other transit operators, with Sonoma County receiving 51 percent less; and (4) the ridership-based metric yielded the smallest amount of STA funds for VTA, with 50 percent less funding than actual, while high ridership operators such as SFMTA, would see a roughly 400 percent increase. Thoroughly investigating current and alternative funding allocation methods and policies is critical to understanding their effects on transit agencies and the communities they serve

Defining and Measuring Equity in Public Transportation

Transit should serve all users, regardless of age, race, ability, or any other identity. Policies and planning must be conscious of inequities when defining and measuring equity in public transportation. This study was done to aid the California Department of Transportation (Caltrans) and the state’s transit agencies in assessing transit service equity and assisting with evaluating past, existing, and future inequities. This report identifies and evaluates policies and practices associated with equity measurement in public transit from extant academic and professional literature sources. These include the Federal laws and regulations addressing Title VI of the 1964 Civil Rights Act and the measurement tools (i.e., metrics) that are used to identify and evaluate equity impacts related to transit benefits and costs. The report identifies a list of candidate metrics and applies them to a test case in Santa Cruz County, California, and compares their results to those generated by the metrics required by Title VI (race and income) for transit equity analysis. From this comparison, the study evaluated the need for new metrics in transit equity. Findings suggest that these traditional Title VI measures do not correlate well with other potential measures of inequity. Hence, transit inequity is a multifaceted problem with several potential different measures, each revealing an aspect of inequity. Caltrans and other transit-related agencies need to reach beyond these traditional measures, finding metrics that address the specific, context-appropriate equity conditions of the communities they are measuring to ensure fair and equal public transportation for all

Implications of adiabatic phases for a vortex in a superconductor film

Based on ideas of off-diagonal long range order and two-fluid model, we demonstrate that adiabatic phases for a slow motion of a vortex in a superconductor film give rise naturally to the Magnus force at finite temperatures.Comment: 6 pages, Late

When kinases meet mathematics: the systems biology of MAPK signalling

The mitogen activated protein kinase/extracellular signal regulated kinase pathway regulates fundamental cellular function such as cell proliferation, survival, differentiation and motility, raising the question how these diverse functions are specified and coordinated. They are encoded through the activation kinetics of the pathway, a multitude of feedback loops, scaffold proteins, subcellular compartmentalisation, and crosstalk with other pathways. These regulatory motifs alone or in combination can generate a multitude of complex behaviour. Systems biology tries to decode this complexity through mathematical modelling and prediction in order to gain a deeper insight into the inner works of signalling networks

Documentary criminology: Girl Model as a case study

Visual and cultural criminology are integrated with documentary filmmaking to develop a theoretically grounded, practice-based approach called ‘documentary criminology’. The first section establishes the need for documentary filmmaking in criminology and outlines methodological opportunities. The second section examines theoretically the aesthetics and substance of documentary criminology. The third section takes the film Girl Model (Redmon and Sabin, 2011) as a case study to demonstrate how documentary criminology embedded in lived experience (in this case, the experience of scouts that recruit young Russian girls, purportedly for the modelling industry) can depict sensuous immediacy. The final section contrasts the aesthetic and ethical consequences of documentary criminology within Carrabine’s (2012, 2014) concept of ‘just’ images to a documentary filmmaking approach that remains interpretively open-ended. Readers can access Girl Model at https://vimeo.com/29694894 with the password industry