Cities and transit agencies, including the Los Angeles County Metropolitan Transportation Authority (LA Metro), are interested in shifting travel from solo driving to more sustainable modes, including transit, biking, walking, and other non-auto modes. As LA Metro and other agencies collect more data about their system and its users, there are many opportunities to apply that data to productively improve the system and drive policy. In this project, our primary goal was to identify a set of specific indicators Metro and other agencies could use to measure their success in the creation and provision of a high-quality non-auto mobility system for both existing users reliant on these modes as well as future users who shift from driving.