The maximum authorized speed in non-signaled DCS territory for passenger trains and freight is?

The maximum authorized speed in non-signaled DCS territory for passenger trains and freight is?

• A. 60 MPH / 50 MPH
• B. 59 MPH / 49 MPH
• C. 60 MPH / 49 MPH
• D. 59 MPH / 50 MPH

Answer: (B)

In non-signaled DCS territory, speeds are intentionally reduced to create a safety margin because there are no fixed signals to rely on. The system provides control and protections, but the absence of fixed signals means the engineer must have extra stopping distance and reaction time. Therefore, the maximum authorized speeds used in this scenario are 59 mph for passenger trains and 49 mph for freight trains. This slight reduction from typical 60/50 values keeps a safety buffer in place for braking and decision-making without relying on signals. Other options would either push the speed up to 60/50 or mix the values differently, which would not align with the standard limits for non-signaled DCS territory.

In non-signaled DCS territory, speeds are intentionally reduced to create a safety margin because there are no fixed signals to rely on. The system provides control and protections, but the absence of fixed signals means the engineer must have extra stopping distance and reaction time.

Therefore, the maximum authorized speeds used in this scenario are 59 mph for passenger trains and 49 mph for freight trains. This slight reduction from typical 60/50 values keeps a safety buffer in place for braking and decision-making without relying on signals.

Other options would either push the speed up to 60/50 or mix the values differently, which would not align with the standard limits for non-signaled DCS territory.