Bundesautobahn 1, Federal motorway in northern Germany.
The A1 is a federal motorway spanning roughly 750 kilometers, connecting the Baltic Sea in the north with Saarland in the southwest. It passes through seven states and runs near major cities like Hamburg, Bremen, and Osnabrück.
The first sections of the motorway opened between 1936 and 1940 and connected major northern cities. After the war, construction continued and shaped the region's north-south traffic patterns that persist today.
The motorway connects former trading cities that were part of the Hanseatic League and remain important regional centers today. This route reflects economic ties that have shaped the region for centuries.
The motorway has service stations and rest areas positioned roughly every 30 to 60 kilometers along the route. Travelers should plan their journey according to their destination and expect varying traffic levels during peak hours.
The Kamen interchange, where the A1 meets the A2 northeast of Dortmund, is one of Europe's largest traffic hubs handling north-south and east-west flows. Daily, thousands of vehicles merge at this junction.
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