Who's Moving Down the Track? 
As reported for 8/8/00 for Rail Performance
The following is a summarization of average track speeds - number of miles operated divided by total number of hours operated:
(speeds are avg mph)
Railroad Intermodal Manifest Multi-Level Coal Grain
CN 32.1 23.9 24.8 15.7 n/a
KCS 26.2 23.1 26.2 23.1 25.6
BNSF 33.5 21.3 29.1 21.3 21.1
NS 28.0 19.4 21.0 15.8 17.8
UP 31.4 21.7 26.4 23.6 23.2
CSX 28.0 19.3 20.9 14.4 18.3
      from Rail Performance Measurements 08/08/00