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|} The Cologne Airport Loop is a 15.2 kilometre-long railway line, which connects the Cologne/Bonn Airport station to the Cologne–Frankfurt high-speed rail line. The loop is used by Intercity-Express trains, the Rhine-Erft Express (RE 8) and S-Bahn line 13. ==Route== The double track line branches off the high-speed rail line north-west of the Cologne district of Gremberghoven and crosses the B8 highway (Frankfurter Straße). After the A59 autobahn underpass it swings towards the southeast and crosses farmland in a cutting. The newly established Frankfurter Strasse station connects the industrial zone of Gremberghoven and the Airport Business Park to public transport. The station is served by the S-Bahn and the S-Bahn-like ''Oberbergische'' line RB25 regional service on the Köln-Kalk–Overath railway. After passing under the Schloß-Röttgen tunnel (1,047 m) the line turns to run parallel and to the north of the A59 in a northeasterly direction to the Airport interchange and the Porz-Grengel motorway junction. It then enters into the 4,210 m Airport Tunnel. It passes the Wahner Heide nature reserve and through the airport, the airport station and back under the A59 completely underground. The route then returns to the surface and passes between Eisdorf and Wahn on a ridge. After a 400 m long embankment, the line connects with the new line.〔 The line runs for 15.19 kilometres, with 2.50 km of the line at ground level, 5.01 km in cuttings, 1.01 km on embankments, 5.26 km in tunnel and 1.41 km on bridges and ramps.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cologne Airport loop」の詳細全文を読む スポンサード リンク
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