This research focuses on balancing the need for independent mobility among older drivers with their safety and that of other road users. Stopping driving can have serious consequences for older people: depression, poorer health, and social isolation. The transition to driving cessation can be distressing for drivers and families. This 4 year longitudinal study of drivers over 65 years and family members will investigate how older adults modify their driving, meet their transport needs and adapt to driving cessation, and the role families play. Study participants, 15% Māori, have been recruited and interviewed once. Two further interviews (2 and 4 years later) will be undertaken to identify individual and family factors associated with driving self-regulation and cessation, and assess the impact of these changes on social, psychological, health and mobility outcomes. The findings will contribute to better policy, a need identified by NZ Road Safety and Positive Ageing Strategies.