Central Java was the province that first introduced a railway line in Indonesia. The very first line began in 1873 between Semarang and Yogyakarta by a private company, but this route is now no longer used. Today there are five lines in Central Java: the northern line which runs from Jakarta via Semarang to Surabaya. Then there is the southern line from Kroya through Yogyakarta and Surakarta to Surabaya. There is also a train service between Semarang and Surakarta and a service between Kroya and Cirebon. At last there is a route between Surakarta and Wonogiri. The line between Kutoarjo and Surakarta, the line from Cirebon to Kroya up to Purwokerto and the entire north coast line (since 2014) are double-track, while second tracks from Surakarta to Kertosono (towards Surabaya) and Purwokerto-Kroya-Kutoarjo are under construction of which the latter will be finished in 2019