If you're wondering what the Population & Steets of Karlsruhe City are, then you've come to the right place. The city of Karlsruhe, Germany is home to approximately 300,000 people. Although not a popular tourist destination, Karlsruhe is a very pleasant city to live, work, and study in. A tram subway is currently under construction and will open in 2017.
The tram system in Karlsruhe runs on the mainline alongside train traffic, and then diverges to dedicated tracks in the city. The S2 line serves the city center and the Hauptbahnhof, while the S1 and S3 lines run outside the city center, with higher-quality right-of-way separation. Most lines, however, use the mainline rail for part of their journey. In this way, the trams have all of the benefits of a high-speed train without the cost.