Rail lines are the length of railway route available for train service, irrespective of the number of parallel tracks.
| 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Belgium | 3,471.0 | 3,544.0 | 3,582.0 | 3,592.0 | 3,631.0 | 3,607.0 | 3,602.0 | 3,605.0 | 3,607.0 | 3,615.0 | 3,615.0 | 3,612.0 | ||
| Luxembourg | 274.0 | 275.0 | 275.0 | 275.0 | 275.0 | 275.0 | 275.0 | 275.0 | 275.0 | 275.0 | 288.0 | 288.0 | 271.0 | 271.0 |
| Netherlands | 2,802.0 | 2,813.0 | 3,016.0 | 3,078.0 | 3,078.0 | 3,078.0 | 3,041.0 |