In a Form D line 2 authority to operate in both directions, what must the Dispatcher refrain from doing?

In a Form D line 2 authority to operate in both directions, what must the Dispatcher refrain from doing?

• A. Authorize other movements within the line 2 limits
• B. Issue a new Form D line 2
• C. Cancel the Form D line 2 authority
• D. Extend the line 2 authority

Answer: (A)

Form D line 2 for two-direction operation sets up a single, coordinated authority over a defined track segment. When that two-way authority is in effect, the dispatcher has already established how trains may move within those limits. Allowing any additional, separate movements within the same line 2 area would create conflicting instructions and raise the risk of trains meeting or crossing each other in an unmanaged way. So the dispatcher must refrain from authorizing other movements inside those line 2 limits while the two-direction authority stands.

Form D line 2 for two-direction operation sets up a single, coordinated authority over a defined track segment. When that two-way authority is in effect, the dispatcher has already established how trains may move within those limits. Allowing any additional, separate movements within the same line 2 area would create conflicting instructions and raise the risk of trains meeting or crossing each other in an unmanaged way. So the dispatcher must refrain from authorizing other movements inside those line 2 limits while the two-direction authority stands.