For years Hump yards were being closed. Now they are being reopened according to an article in the WSJ. Norfolk Southern reopened 2 and now has 6 operating with 5 still idled and Union Pacific reopened one in Ft Worth to free up operations on the west coast.
The NS hump yard in Bellevue, OH which is 6 miles wide is using 48 of 80 tracks to classify 37 destinations. The yard crew can now handle 1,900 cars daily up from 1,200 and it takes 6 hours to handle cars that used to take 11 hours. This eases switching operations in other yards, allowing workers there to be redeployed to operating trains.
Charlie