temporarily released as a third lane. It leads across the Lüneburg Heath, partly with separate directional lanes. At the triangle Walsrode you reach the A 27 to Bremen and a few kilometers to the south, before reaching the capital of Lower Saxony, at the junction Hannover-Nord on the A 352, which connects to Hannover Airport and ends at the A 2, which leads to Dortmund. The following motorway junctions of the A7 provide a connection to the A37 Hanover city center and to Celle or A 2 Ruhrgebiet-Berlin dar. By the Altwarmbüchener Moor the highway leads east to Hanover; at the triangle Hannover-Süd, where the southern branch of the A 37 to the fair Hanover is connected only with the further south part of the A7. South of Hildesheim, the A7 enters a low mountain range and the terrain becomes hilly. The Salzgitter triangle also connects only the southern part of the A7 with the A 39 to Braunschweig and Salzgitter. Between the triangle Salzgitter and Göttingen the highway is expands to six lanes. Passing the university town, the A 38 branches off at Dreieck Drammetal to Leipzig, then the A7 leads over steep gradients and slopes down into the Werratal near the town of Hann. Münden and continues onto Hesse. At Kassel, it is the largest district, from there you can get on the A44 in the direction of the west to the Ruhr area and in some years, when the extension Kassel-Herleshausen will be completed, also in the direction of Eisenach. Between the interchange Kassel-Ost and the interchange Kassel-Süd, the A7 is being developed eight-lane for a future convergence with the then branching off to the east A44. In Kassel, the unfinished A 49 branches off, which will lead from completed completion to the Ohmtal triangle, which is to be built near Homberg (Ohm) between the junctions Alsfeld-West and Homberg (Ohm) on the A5. Between Kassel and Kirchheim the Knüllgebirge is crossed. The Kirchheim triangle and the Hattenbacher triangle, which are close to each other and quite close to the geographic center of Germany, together form one of the most important motorway junctions of the state. The A 4 leads to the New Länder and Eastern Europe, the A 5 to the Rhine-Main area and on to the border of Switzerland. South of the Hattenbacher triangle is the A7 sections four-lane expanded, leads past Fulda, where the A