In my neighborhood the KCS uses a lot of DP, especially on coal and grain trains. The odd part is that one coal train may run with 2 on the head and 3 on the rear and the next one may be 2 on the head, 2 about 2/3 back and 1 on the rear. I haven't had a chance to talk with anyone that would know (actual railroad employee) and ask why one coal train runs 3 x 2 or 2 x 3 and the next one is 2 x 2 x 1.
|