by BandA
Didn't MBTA (or Amtrak) have a bad experience with cement ties? And the cement slabs used on the Red Line Alewife extension?
My limited understanding is that wood does better with freeze/thaw cycles, and cement is needed to retain the gauge precisely for high-speed rail (NEC).
My limited understanding is that wood does better with freeze/thaw cycles, and cement is needed to retain the gauge precisely for high-speed rail (NEC).