Gare du Nord in Paris, France, handles approximately 214.2 million passengers each year. It is the busiest station in Europe and in the world outside of Japan.

The title of the busiest train junction in Europe belongs to Clapham Junction in London, United Kingdom. While other stations like Paris Gare du Nord or Zürich Hauptbahnhof might handle more total passengers, Clapham Junction is the busiest in terms of sheer rail traffic volume. On a typical weekday in 2026, between 100 and 180 trains per hour pass through its 17 platforms. It serves as a critical bottleneck where the South Western Main Line and the Brighton Main Line converge, handling services from London Waterloo and London Victoria toward the south and west of England. Because so many different routes merge here, it is often said that "a train passes every 30 seconds" during peak periods. For passengers, it is a major interchange point rather than a destination, meaning the platforms are constantly flooded with people switching between suburban and long-distance services. Its complexity makes it the most intensive "railway throat" on the entire European continent.