Speed Limit Sign

Model Railroader Prototype information for the modeler
1

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

2

I suspect the ‘T’ is for the ‘Talgo’ passenger trains…

3

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