When landslides occur on or near transport lines such as roads and railways, they have the potential to cause blockages, delays, detours, damage and closures, resulting in economic and societal impacts. When putting in transport lines, landslide susceptibility may be increased (e.g., through over-steepening) or decreased (e.g., through drainage routing, or strengthening of the soil), resulting in a complex interplay between transport lines, susceptibility and landslides. This session welcomes abstracts on relevant landslide-transport line themes such as: spatial and numerical modelling, physical process, landslide susceptibility, potential and actual physical impact, risk assessments and novel early warning systems. We particularly welcome both oral and poster presentations with novel conclusions or broad implications for the management of landslide-transport lines across the world. We encourage poster presentations, and will, depending on interest, plan a discussion session on similar themes. An NHESS special issue on this theme is currently being planned.