@bob.s - I don't think so. I'll check with a rail-industry friend about that, however...Maybe it is done in regions with more moisture in the air than we have in the central US.
BNSF 3821 east leads.Z-SBDWSP4-25 to Chicago.
G-GNWHER9-26 is a loaded grain headed for Hereford, TX.
BNSF 600 East makes a left turn with Z-EAPCHI8-24.
Nice picture, and thanks for your efforts to get a photo here!
Neat power!
Very nice!
Excellent perspective!
Nice! I think Thomas the Tank Engine had an episode devoted to this practice, too!
Excellent! The crew seems happy to see you!
Beautiful!
@Vasily.Semin - Yes the 100-400 range is quite useful. I have one of those, too, but am just having fun with a new toy for a bit 
I do love the compression, especially with our miles of boring straight track.
I do love the compression, especially with our miles of boring straight track.
Z-SBDWSP8-23, San Bernardino to Willow Springs (Chicago) hottie.
Love the vertical curvature there! Very cool.
Wow! Very nice!
