Research Projects | National Institute for Transportation and Communities

Maternal Mental Health and Keetoowah Women: Past, Present, and Future

Principal Investigator: December Maxwell

American Indian/Native American (AI/NA) women experience postpartum depression (PPD) at a disproportionate rate. Poor transportation services and systems increase the risk of PPD prevalence in AI/NA populations, particularly since those in more rural ... Read More

Pedal the Old Pueblo: A Naturalistic Study on Bicycling in Tucson, AZ

Principal Investigator: Joey Iuliano

Concerns for the environment and personal health have made bicycling an increasingly popular mode of transportation in the US. Understanding how bicyclists move through the built environment is critical to designing infrastructure that promotes safe ... Read More

Transportation, Social Support by Family Visitation, and Depression of Older Adult Nursing Home Residents: A Mixed-Methods Study

Principal Investigator: Vivian Miller

Older adults who live in nursing homes are at an increased risk for depression and anxiety, and research has shown that social connections and family support are key factors that positively impact their mental health. However, research also suggests ... Read More

Social Equity in Transit: Toward social and environmental justice in transportation

Principal Investigator: Torrey Lyons

Much of the literature on transit focuses on very fine-grained aspects of the industry, often neglecting the important foundation of why the service is even provided in the first place. Transit service is supported by local governments with aid from ... Read More

Using Time-Series Analysis to Precisely Identify and Rank Road Hotspots

Principal Investigator: Alexander Lee

Co-Investigator: Wei Lin

Over the past decades, many ranking methods have been proposed. However, results vary from method to method, and one of the issues behind ranking is the element of subjectivity. One approach to resolve these issues is the use of combined models. One ... Read More

Suburban Black Poverty in East Portland: The Role of Transportation in Making Ends Meet

Principal Investigator: Steven Howland

Transportation choices among the poor are often monetarily and geographically determined (Krizek & El-Geneidy, 2007). Low-income households must weigh the costs and benefits of modes and the tradeoffs they make by choosing one mode over another (Blum ... Read More

Data and Methodological Issues in Assessing Multimodal Transportation Impacts for Urban Development

Principal Investigator: Kristina Currans

In 1976, the Institute of Transportation Engineers (ITE) compiled their first Handbook of guidelines and methods for evaluating development-level transportation impacts, specifically vehicular impacts (Institute of Transportation Engineers 1976). Dec ... Read More

Exploring the positive utility of travel and mode choice

Principal Investigator: Patrick Singleton

Traditionally, travel is considered a disutility to be minimized, and travel demand is derived from activity demand. Recently, scholars have questioned these axioms, noting that some people may like to travel, use travel time productively, find other ... Read More

Exploring Drivers’ Attitudes and Behaviors toward Bicyclists: The Effect of Explicit and Implicit Attitudes on Self-Reported Safety Behaviors

Principal Investigator: Tara Goddard

Bicycling in the United States is disproportionately unsafe as a transportation mode. Despite comprising a smaller share roadway users, bicyclists are twelve times more likely to be killed in a traffic crash with a car than car occupants (Pucher and ... Read More

Pedestrian Modeling and Agent Cognition

Principal Investigator: Nicholas Perdue

Walking is one of the most commonplace forms of human expressions, yet the forms, motivations, and practices of walking vary greatly and are often at odds with dominant discourses in urban and transportation planning. As interest in pedestrianoriente ... Read More

Active Travel Behavior and Spatial-Temporal Land Use Mixing

Principal Investigator: Steven Gehrke

Urban policies have emphasized the importance of land use mixing as an intervention beholding of lasting planning and public health benefits. Transportation planners have identified potential in efficiency gains achieved by increasing land use mix an ... Read More

Characterization of the urban roadway atmospheric environment to evaluate transportation impacts and improve exposure assessment

Principal Investigator: Christine Kendrick

Urban arterials are landscapes that give rise to short and long-term exposures to increased transportation-related pollution. With high traffic volumes and a wide mix of road users such as those waiting for transit, pedestrians, and bicyclists, urban ... Read More

20 Results