| Typicality: | 0.417 |
| Saliency: | 0.392 |
| on 21 december | 8 | temporal |
| on the national level | 7 | location |
| on revised ertms operational principles | 5 | other |
| agency → issue → recommendation | 24 |
| agency → issued → recommendation | 3 |
| negative | neutral | positive |
| 0.144 | 0.814 | 0.042 |
| Raw frequency | 27 |
| Normalized frequency | 0.392 |
| Modifier score | 0.500 |
| Perplexity | 334.864 |