Speed Limit Sign

[ba&prr]

Recently saw a speed limit sign on BNSF main line in  Tacoma,WA. Top had T-75 middle P-60,bottom F-50. I know what the P and F are for. What does the T mean?   Joe

[jrbernier]

  I suspect the 'T' is for the 'Talgo' passenger trains...

[ba&prr]

Thanks. That makes sence since the Amtrak Cascades runs on this track.