egrets@lemmy.world to BestOfLemmy@lemmy.worldEnglish · 23 days agoWhy upgrading existing train tracks to high-speed is a costly challengelemmy.worldexternal-linkmessage-square0fedilinkarrow-up112arrow-down12
arrow-up110arrow-down1external-linkWhy upgrading existing train tracks to high-speed is a costly challengelemmy.worldegrets@lemmy.world to BestOfLemmy@lemmy.worldEnglish · 23 days agomessage-square0fedilink
