Europe

Corridors are schematic, not tracked movements. Route lines and stopping points are carried over from the Solar context dataset, which attributes them collectively to UNODC, EMCDDA, the National Crime Agency, IOM Displacement Tracking Matrix and Frontex. Individual stopping points carry no separate citation in that dataset and the narrative text was written by hand, so treat every place description as indicative rather than sourced. Volumes are the dataset's own annual estimates and are not the Home Office series used elsewhere on this page. Four corridors in the source set — Darién Gap, Central America to the United States, Rohingya Bay of Bengal, and South Asia to the Gulf — are left out because they do not feed the European system.