Because railway infrastucture companies would like to not pay for them, not build more tracks and still get more capacity due to "digitization".

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djankauskas 3 hours ago | parent [-]

Not sure what you're arguing, the line affected by this tragedy was migrating to ETCS L2. Its installation costs are getting lower too, I don't think there's an actual problem here.

	▲	1718627440 3 hours ago \| parent [-]
		I wasn't talking about a specific line at all. Research doesn't need a clear problem to try to find better solutions. Also Deutsche Bahn does think there is enough of a "problem", because they do support that research.