The Transportation Index was developed to compare conditions of one place to another. The Index standardizes transportation demand, transportation infrastructure, and injury variables, and then averages them together, yielding a score on a scale of 0-100. Higher values indicate worse transportation conditions. Variables include: percent walk and bike to work (2019 5-Year ACS), transit riders (2019 Metro), transit service frequency (2019 Metro), bicycle infrastructure (2021 LADOT), intersection density (2019 City of Los Angeles Department of City Planning), and bike and pedestrian injuries per 10,000 residents (2020 Statewide Integrated Traffic Records System). For more information, see pages 111-115 of the 2013 Health Atlas, which is available as a PDF on the Los Angeles City Planning website, https://planning.lacity.gov.