Which document would you refer to for temporary speed restrictions during operations?

The most appropriate document to refer to for temporary speed restrictions during operations is the Bulletin Order. Bulletin Orders are specifically designed to communicate important and time-sensitive operational changes, including speed restrictions that may be temporarily imposed due to various factors such as track conditions or maintenance work. These orders are distributed to ensure that all personnel, especially conductors and operators, are aware of the current operational parameters they need to follow in order to maintain safety and efficiency on the transit system.

Other documents serve different purposes: General Orders typically outline long-term changes in policies or procedures, General Notices provide broad information that may not necessarily be operationally urgent, and Operations Notices often involve routine updates but may not specifically address temporary speed restrictions in the same immediate manner as Bulletin Orders. Therefore, the Bulletin Order is the most relevant source for conductor safety and operation in relation to temporary speed limits.