ICE test train reaches speeds of up to 405.0 km/h

Re:ICE test train reaches speeds of up to 405.0 km/h by simianwords on Monday June 30, 2025 @03:08AM (#44420352)

This looks technically correct but let’s exaggerate the speed up to drive my point. Let’s assume trains are 2x faster now than before. You can now either reduce the time and pack the schedule or use the extra “x” time for catching up when needed. Where does this logic break?

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Re:ICE test train reaches speeds of up to 405.0 km/h by scott_w on Monday June 30, 2025 @04:18AM (#44420763)

> the ICE gets stuck behind a slower train, increasing the delay, etc.

Right here. Those slower (older) trains don't magically get any faster just because the train behind it sped up.

> pack the schedule

You actually can't just double it up because faster trains need bigger gaps between them, just like driving on a motorway. If the train in front needs to slow/stop for whatever reason, you don't want the train behind smashing into it at 400km/h because it was tailgating.

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Re:ICE test train reaches speeds of up to 405.0 km/h by simianwords on Monday June 30, 2025 @11:21AM (#44424427)

Yeah I agree - you need big percentage of trains to get faster for the full effect.

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