What is the "rule of tens" in train operations?

The "rule of tens" refers to a guideline for train operators that assists in adjusting train speed depending on varying operational conditions. This principle helps conductors maintain safe and efficient train operations by taking into account factors such as track conditions, weather, and passenger safety. It promotes a systematic approach to modifying train speed, typically suggesting that for every ten miles per hour of speed, the stopping distance should also be increased appropriately under certain conditions.

Utilizing this guideline ensures that when trains face challenges—like inclement weather or heavy traffic—conductors can make informed decisions about how fast they should be moving. It supports the overall safety and reliability of train operations, which is a critical aspect of the MTA's mission.

Other options, while potentially relevant to various aspects of train operations, do not align with the specific purpose of the rule of tens.