Since 2018, Sina Selzer has been a research associate at the Frankfurt Lab for Social-Ecological Transformation of Urban Mobility (formerly: Mobility Research Group) at the Department of Human Geography. She worked until December 2020 on the BMBF-funded project "QuartierMobil: Persistence and Dynamics in the Neighborhood," which was carried out over a three-year period in cooperation with six partners, including the city of Darmstadt. Following that, she led the BMBF-funded project "NaMoLi II: Sustainable Mobility in Lincoln" (2021-2024) and is currently leading the follow-up project "NaMoLi III" (2024-2026). In July 2022, she completed her doctoral project, which was awarded the 2023 Dissertation Prize in Human Geography by the Association for Geography at German-speaking universities and research institutions (VGDH). Her dissertation focused on analyzing sustainable mobility concepts and potential changes in residents' mobility after moving into a car-reduced neighborhood. Using two case studies in Darmstadt (Lincoln-Siedlung and K6-Kranichstein), she compared planning visions with lived mobility practices in car-reduced neighborhoods. Since 2023, she has been part of the spokesperson circle of the Mobility and Transport Working Group (AK MoVe) of the German Society for Geography (DGfG).