How to get the No country for old trains Achievement.
The achievement seems straight forward:
Have all tracks electrified and high speed. Have at least 100km of tracks.
However if you try to upgrade all of your tracks, you wont get the achievement. even if you have well over 100km of rails. If you go to your Headquarters you'll see a few hundred meters of track are not high speed rail.
The issue with this achievement:
Train Depots have 20 meters of rail attached to them that is low speed rail. In order to get this achievement you must remove all of your train depots from the map. After removing all train depots and having 100km + of high speed electrified rail, you'll receive the achievement.