Re: Why? Fluidity and conflict reduction, it's all in those number of delays from meets.
Author: Lite Brite
Date: 10-16-2022 - 19:30
May or may not be known. BNSF runs most eastbound and westbound traffic on the left side of 2 main traffic. This is from Belen NM to Winslow AZ. The existing left hand running line favor easier grades when climbing the Continental Divide.
Conversely, trains operating Needles CA and Kingman have easier grades using the right hand line. Even though BNSF can maneuver traffic on either main track, a flyover bridge greatly helps to flip traffic from one side to the other without stopping trains to do so.
There's a lot of trains on the BNSF transcon at any given time.