BobbyT wrote: ↑Sat May 07, 2022 11:38 am
One thing to consider is that even with full DS clearance, it is unlikely that every container will be double stacked. CSX still runs lots of singles on the B&A, so there must be a reason why not every container is double stacked, such as not having enough well cars available.
If I may jump in here: there are many reasons why you might see singles (equipment balance/availability, clearance issues elsewhere, etc), but a rather common/underrated one is weight. Remember, the vast majority of stack cars are articulated, so are sharing a pair of (these days, usually 125t) trucks with their neighbors. Means they have much less carrying capacity of a normal freight car. Normally that's fine, because containers have to travel on trucks too so are generally relatively light, but there are cases where you have containers heavy enough that stacking will break that limit, forcing singles. 20 foot containers often produce this problem; they're overwhelmingly used by high-weight products, so you may be ending up with 3 truckload weight equivalents on a platform if you plop a 40 or 53 atop them.