How should you handle a temporary speed restriction (TSR) encountered en route?

• A. Slow to the TSR speed, maintain strict adherence to the limit, and report any discrepancy to the dispatcher.
• B. Ignore it if you are in a hurry.
• C. Increase speed to clear it quickly.
• D. Only slow when you see it on the dashboard.

Answer: (D)

Temporary speed restrictions are set to protect track workers and equipment, so you must follow the speed shown for the restricted segment. The reason this option is the best is that the locomotive’s cab display provides the authoritative indication of the current TSR and its required speed. By slowing when the dashboard shows the TSR speed, you rely on the system’s precise, up-to-date information rather than guessing from trackside signs or trying to read them at the last moment. This helps you apply the exact speed needed for the duration of the restriction and reduces the risk of overshooting or undershooting the limit. Once you’ve cleared the TSR, you can resume normal speed. In contrast, ignoring the TSR, speeding up to hurry through, or waiting to slow only after you physically see a sign all pose safety risks and can lead to noncompliance.