Transportation Equity

Advancing Road User Charge (RUC) Models in California: Understanding Social Equity and Travel Behavior Impacts

Lazarus, Jessica
Broader, Jacquelyn
Cohen, Adam
Bayen, Alexandre
Shaheen, Susan
2022

The State of California is currently moving forward with a road usage charge (RUC) demonstration program, creating promising research opportunities to examine the potential social equity implications of a shift from a gas tax to a RUC system in California. RUC . To this aim, this study investigates the relative burden of gas taxes and mileage-based RUC across various sociodemographic and geographic dimensions by examining key trends in road use, vehicle ownership, fuel consumption, use of RUC-related technologies, and attitudes/opinions related to RUC adoption. Expert interviews were...

Credit-Based Congestion Pricing: Equilibrium Properties and Optimal Scheme Design

Jalota, Devansh
Lazarus, Jessica
Bayen, Alexandre
Pavone, Marco
2023

Credit-based congestion pricing (CBCP) has emerged as a mechanism to alleviate the social inequity concerns of road congestion pricing - a promising strategy for traffic congestion mitigation - by providing low-income users with travel credits to offset some of their toll payments. While CBCP offers immense potential for addressing inequity issues that hamper the practical viability of congestion pricing, the deployment of CBCP in practice is nascent, and the potential efficacy and optimal design of CBCP schemes have yet to be formalized. In this work, we study the design of CBCP schemes...

Documentation of the Irvine Integrated Corridor Freeway Ramp Metering and Arterial Adaptive Control Field Operational Test

McNally, M. G.
Moore, II, James E.
MacCarley, C. Arthur
2001

A systematic evaluation of the performance and effectiveness of a Field Operational Test (FOT) of an integrated corridor-level adaptive control system was attempted from fall 1994 through spring 1999 in the City of Irvine, California. The FOT was conducted by a consortium consisting of the California Department of Transportation (Caltrans), the City of Irvine, and two private sector consultants, National Engineering Technologies, Inc. (NET) and Farradyne Systems, Inc. (FSI, now PB/FSI), with the City of Irvine as the lead agency. The FOT was cost-share funded by the Federal Highway...

The Sociodemographics of Land Use Planning: Relationships to Physical Activity, Accessibility, and Equity

Aytur, SA
Rodriguez, DA
Evenson, KR
Catellier, DJ
Rosamond, WD
2008

Little is known about relationships between attributes of land use plans and sociodemographic variations in physical activity (PA). This study evaluates associations between policy-relevant plan attributes, sociodemographic factors, and PA in North Carolina. Results suggest that land use plans that included non-automobile transportation improvements and more comprehensive policies to guide development were positively associated with both leisure and transportation-related PA. However, residents of counties with lower-income levels and higher proportions of non-white residents were...

The Role of Employment Subcenters in Residential Location Decisions

Cho, EJ
Rodriguez, DA
Song, Y
2008

In this paper we employ Mecklenburg County, North Carolina, a polycentric city with 10 employment subcenters, as a case study to explore the role of employment subcenters in determining residential location decisions. We estimate discrete choice models of residential location decisions: conditional logit models and heteroscedastic logit models with both the full choice set and sampled choices. We ënd that access to certain employment subcenters, measured in terms of generalized cost, is an important determinant of households’ residential location decisions. The proximity to speciëc...

A Spatial Analysis of Health-Related Resources in Three Diverse Metropolitan Areas

Smiley, MJ
Roux, AV Diez
Brines, SJ
Brown, DG
Evenson, KR
Rodriguez, DA
2010

Few studies have investigated the spatial clustering of multiple health-related resources. We constructed 0.5 mile kernel densities of resources for census areas in New York City, NY (n=819 block groups), Baltimore, MD (n=737), and Winston-Salem, NC (n=169). Three of the four resource densities (supermarkets/produce stores, retail areas, and recreational facilities) tended to be correlated with each other, whereas park density was less consistently and sometimes negatively correlated with others. Blacks were more...

A Spatial Agent-Based Model for the Simulation of Adults' Daily Walking Within a City

Yang, Y
Roux, AV Diez
Auchincloss, AH
Rodriguez, DA
Brown, DG
2011

Environmental effects on walking behavior have received attention in recent years because of the potential for policy interventions to increase ...

Pedestrian and Bicycle Planning in Rural Communities: Tools for Active Living

Aytur, SA
Satinsky, SB
Evenson, KR
Rodriguez, DA
2011

Pedestrian and bicycle planning has traditionally been viewed from an urban design perspective, rather than a rural or regional planning perspective. This study examined the prevalence and quality of pedestrian and bicycle plans in North Carolina according to geography, regional planning, and sociodemographics. Plan prevalence was lower, but plan quality tended to be higher, in rural areas compared with urban areas. Correlations between plan prevalence and active commuting were strongest in lower-income rural areas. By engaging in the planning process, rural residents and other...

Exploring Walking Differences by Socioeconomic Status Using a Spatial Agent-Based Model

Yang, Y
Roux, AV Diez
Auchincloss, AH
Rodriguez, DA
Brown, DG
2012

We use an exploratory agent-based model of adults' walking behavior within a city to examine the possible impact of interventions on socioeconomic differences in walking. Simulated results show that for persons of low socioeconomic status, increases in walking resulting from increases in their positive attitude towards walking may diminish over time if other features of the environment are not conducive to walking. Similarly, improving the safety level for the lower SES neighborhoods may be effective in increasing walking, however, the magnitude of its effectiveness varies by levels...

Assessing the Environmental, Economic and Social Benefits of Well-Located Workforce Housing

Rohe, W
Cowan, S
Rodriguez, D
1012

The jobs-housing imbalance in many metropolitan areas contributes to long work commutes and the related problems of air pollution, traffic congestion, and loss of both discretionary income and time that could be spent in more productive and meaningful ways. This is a particular problem for low- and moderate-income workers who may have to travel long distances from their places of work to find affordable housing. This article presents a methodology for assessing the potential environmental, economic, and social benefits of constructing new affordable housing close to major employment...