The two Autobahnen crossing each other nearby at "Hermsdorf junction" are the Bundesautobahn 4 (Frankfurt–Dresden) and the Bundesautobahn 9 (Berlin–Munich), which were both built during the 1930s. Furthermore, there are three Bundesstraßen connecting Gera: the Bundesstraße 2 to Zeitz in the north and Hof in the south, the Bundesstraße 7 to Jena (via Eisenberg) in the west and to Altenburg in the east and the Bundesstraße 92 to Plauen (via Greiz) in the south. Important secondary roads run to Altenburg (via Lumpzig), to Werdau (via Linda), to Wünschendorf, to Stadtroda and to Hermsdorf. As part of the Bundesgartenschau 2007, a new bypass road was built in the east to improve the connection of southern city parts to the A 4 and to relieve the city centre from transit traffic.