<human>: Question: Where can the issue of through traffic benefits occur?
Answer: 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 the question answered in a satisfactory fashion?

OPTIONS:
- yes
- no
<bot>: no