dantheclamman@lemmy.worldM to Wikipedia@lemmy.worldEnglish · 17 days agoTrack ballast (crushed stone used underneath train tracks, surprisingly important and technical)en.wikipedia.orgexternal-linkmessage-square11fedilinkarrow-up1114arrow-down10
arrow-up1114arrow-down1external-linkTrack ballast (crushed stone used underneath train tracks, surprisingly important and technical)en.wikipedia.orgdantheclamman@lemmy.worldM to Wikipedia@lemmy.worldEnglish · 17 days agomessage-square11fedilink
minus-squareAllNewTypeFace@leminal.spacelinkfedilinkEnglisharrow-up5·17 days agoConcrete seems to be the preferred choice, and for high-speed lines, the only choice. I’m guessing that places still using wood do so because it’s cheaper and line speeds don’t need anything better.
These look like concrete to me?
Concrete seems to be the preferred choice, and for high-speed lines, the only choice. I’m guessing that places still using wood do so because it’s cheaper and line speeds don’t need anything better.