sentences:  In spite of this, in the early 1940s, the Germans laid a second track on the routes Herby – Siemkowice (55 km) and Karsznice – Inowrocław (156 km).After the war, the Coal Trunk-Line again gained importance.Transports of Silesian coal to Gdansk and Gdynia were crucial for the Polish economy, so by 1966 electrification of the whole route was completed.