I have a question about the meaning of "line" in this news article:

The Wurzburg attack was on a train travelling from the Bavarian town of Treuchtlingen to Wurzburg, which is about 60 miles northwest of Nuremberg. The line was closed.

I don't get the intended meaning of "line" in the article. Dictionaries suggest two possible definitions:

1. a system of transportation, including ships, buses, trains, etc.

2. a railroad track, usually as part of a larger railroad network

Both definitions seem to fit the usage in the news article. Which one should be used then?

I have a question about the meaning of "line" in this news article:

The Wurzburg attack was on a train travelling from the Bavarian town of Treuchtlingen to Wurzburg, which is about 60 miles northwest of Nuremberg. The line was closed.

I don't quite get the intended meaning of "line" in the article. Dictionaries suggest two possible definitions:

1. a system of transportation, including ships, buses, trains, etc.

2. a railroad track, usually as part of a larger railroad network

Both definitions seem to fit the usage in the news article. Which one should be used then?