When landslides occur on or near a transport line (e.g., road or railway), they have the potential to cause transport network blockages, delays, detours, damage, and closures, resulting in economic and societal impacts. Transport lines such as roads or railways may increase landslide susceptibility (e.g. through oversteepening) or decrease susceptibility (e.g. through drainage routing or strengthening of the soil), resulting in a complex interplay between transport lines, susceptibility, landslides, and people. This special issue welcomes papers on landslide–transport network interactions on themes such as spatial and numerical modelling, physical process, landslide susceptibility, potential and actual impact, risk assessments, and novel early-warning systems. We particularly welcome papers with novel conclusions or broad implications for the management of landslide–transport network interactions.