their infrastructure. Transport By rail Weimar is connected by the Thuringian Railway to Leipzig in the east and to Frankfurt/Kassel in the west. Furthermore, there are some regional railways to Gera via Jena and to Kranichfeld via Bad Berka. Today, there are long-distance trains to Frankfurt via Erfurt and Fulda and to Dresden via Leipzig and regional trains to Göttingen and Eisenach via Erfurt, to Halle via Naumburg, to Altenburg, Glauchau, Zwickau and Greiz via Jena and Gera and to Kranichfeld. When the new Erfurt–Leipzig/Halle high-speed railway will open (in 2015), Weimar will be disconnected from the German long-distance train network. However the regional train service will be augmented to connect Weimar with ICE-stops in Erfurt, Halle and Leipzig. In freight transport exists an intermodal terminal in Vieselbach (Güterverkehrszentrum/GVZ) with connection to rail and Autobahn, west of Weimar. By road Weimar is located at the Bundesautobahn 4 (Frankfurt–Dresden). Furthermore, there are two federal roads to Erfurt and Jena (Bundesstraße 7) and to Rudolstadt and Kölleda (Bundesstraße 85) as well as some regional roads to Sömmerda, Oßmannstedt and Magdala. A bypass road around Weimar was built in the 2000s in the north and west; the eastern and southern continuation are in discussion, but not in definite planning because of some difficulties in routing. By aviation The Erfurt-Weimar Airport lies approximately west of Weimar. It was largely extended in the 1990s, but the anticipated rise in passengers did not occur so that there is only rare air traffic, mostly to Mediterranean holiday regions. Other flights are carried out via Frankfurt Airport, which can be reached in 3 hours, and via Berlin Brandenburg Airport, which is also about 3 hours away. By bike Biking is becoming more popular since the construction of quality cycle tracks began in the 1990s. For tourism, there are the Ilm track and the Thuringian city string track (Radweg Thüringer Städtekette). Both connect points of tourist interest, the first along the Ilm valley from the Thuringian Forest to the Saale river and the second close to medieval Via Regia from Eisenach via Gotha, Erfurt, Weimar, and Jena to Altenburg. Additionally, there are themed routes like the Goethe cycle track and the Feininger cycle track. For inner city everyday traffic, some cycle lanes exist along several main streets. Bike rental is offered in the city centre. Bus service For a small city, Weimar is well served by city bus routes,