Original sentence: Altenburg is situated between two Autobahns: the A4 (Erfurt–Dresden) passes approximately  south and the A72 (Leipzig–Chemnitz) passes approximately  east of the city.Biking is becoming more popular since the construction of long distance cycle tracks began in the 1990s.Currently, there are no public flights at this airport.Local public transport within Altenburg is based exclusively on buses.Six lines connect the outlying quarters to the inner city.The connection to long-distance trains is carried out via Leipzig (north and east), Jena (south) and Erfurt (west), since the last long-distance trains on the Leipzig–Hof line ceased operating in 2006.The next regional airport is located in Leipzig/Halle ( to the north).Today, the Altenburg station is the only station within the municipality, after the Paditz station (on the Hof line) and the North Altenburg station (on the Zeitz line) were closed
Edited sentence: 6 lines connect the outlying quarters to the downtown.Altenburg is situated between two Autobahns: the A4 (Erfurt–Dresden) runs approximately  south and the A72 (Leipzig–Chemnitz) runs approximately  east of the city.Biking is becoming more popular since the construction of quality cycle tracks began in the 1990s.Currently, there are no public flights on this airport.Local transport within Altenburg is based exclusively on buses.The connection to long-distance trains is carried out via Leipzig (north and east), Jena (south) and Erfurt (west), since the last long-distance trains on the Leipzig–Hof line were ceased in 2006.The next regional airport is located in Leipzig/Halle ( to the north) and the next major airport is Berlin,  to the north.Today, the Altenburg station is the only station within the municipality, after the Paditz station (on the Hof line) and the North Altenburg station (on the Zeitz line) were abandoned