I want to know the answer to the following question:
What does the increasing demand for container traffic make companies use more often?
All the background I'm provided with is that "The increasing demand for container traffic which is more efficient when utilizing the double-stack car also has network effect issues with existing electrifications due to insufficient clearance of overhead electrical lines for these trains, but electrification can be built or modified to have sufficient clearance, at additional cost.". Is that enough to answer the question?
Answer: no