Choke Points
Low bridges and narrow tunnels in various locations prevent the operation of double-stack trains until costly upgrades are made. Some Class I railroad companies in the U.S. have recently initiated improvement programs to remove obstructions to double-stack trains. See Heartland Corridor (Norfolk Southern Railway) and National Gateway (CSX Transportation).
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Famous quotes containing the words choke and/or points:
“Now ‘tis the spring, and weeds are shallow-rooted;
Suffer them now, and they’ll outgrow the garden,
And choke the herbs for want of husbandry.”
—William Shakespeare (1564–1616)
“When our relatives are at home, we have to think of all their good points or it would be impossible to endure them. But when they are away, we console ourselves for their absence by dwelling on their vices.”
—George Bernard Shaw (1856–1950)