I reverted your change (you also seem to have moved a catenary pole by mistake).
Tagging the road as trunk "along the entire mentioned length" would be wrong as there are intersections.
To be tagged as trunk the Wiki says the following (translated as good as Google and I can):
The decisive features are that the road is "anbaufrei" (no driveways) and, in particular, free of intersections to enable driving without stopping. The connections to such a road are designed as entrances and exits where the road can only be entered from the right or be left to the right. If there are at least two such junctions, an expressway ("highway=trunk") can be assumed.

Please keep in mind that each country has some differences in tagging (as I also had to learn the hard way in the USA when I started to map and retag trunk there) :D