Physical Activity Through Sustainable Transport Approaches (Pasta) in Los Angeles

Project Summary

Active travel options, notably cycling, have been encouraged by recent municipal policy to implement bicycle sharing schemes, but barriers to cycling for transportation still exist for individuals. Such alternatives reduce pollution and reliance on fossil-fuel powered transportation. This study involves a longitudinal survey of individuals to assess determinants of travel behavior in Westwood, Los Angeles. The research focuses on impacts of active travel environments, specifically bike sharing programs, e-scooters, and other urban conditions that may lead to an increase in active and low-carbon transportation. Individuals' perceived barriers or stimulators (e.g. access to bike paths, safety features, etc.) are surveyed and objective measures of the transport and urban infrastructure at home and work locations will be collected within a Geographic Information Systems (GIS) framework (parks, land use mix, density, transportation infrastructure, traffic, crash incidence, etc). The study also employs a wearable measurement device (accelerometer) and global positioning system (GPS) to measure and log physical activity and routes, in combination with a cell phone based app (MOVES) as a practical and efficient tool for gathering objective information. Researchers combine these data on travel behavior with pollution surfaces for Los Angeles to estimate individual, route-based pollution exposure. These travel and pollution metrics are used to identify the impact of bike sharing and other shared mobility programs on temporal-spatial physical activity patterns and health.

Research Team

Michael Jerrett
Environmental Health Sciences, Fielding School of Public Health

Christina Batteate
Environmental Health Sciences, Fielding School of Public Health

Other Information of Interest