Temporary Block Station (TBS) is established by Bulletin Order of Form D to control the movement of trains. Which document is used to establish a TBS?

Temporary Block Station (TBS) is established by Bulletin Order of Form D to control the movement of trains. Which document is used to establish a TBS?

• A. Bulletin Order of Form D.
• B. NORAC Operating Rules.
• C. Timetable.
• D. Track Barricade.

Answer: (A)

A Temporary Block Station is created by issuing a Bulletin Order of Form D, which serves as the official authorization to establish and operate within a temporary block. This bulletin itemizes the block limits, the authority for movements, any speed or special restrictions, and the instructions the crew must follow while inside the TBS. It’s the formal mechanism for temporarily changing normal block arrangements to accommodate work or other conditions, and trains must have this bulletin before entering the area. The other options don’t establish a TBS: NORAC Operating Rules lay out general rules for movement but don’t create a specific temporary block; the Timetable lists scheduled blocks and routine information rather than a temporary restriction; a Track Barricade is a physical setup, not an authorization document.

A Temporary Block Station is created by issuing a Bulletin Order of Form D, which serves as the official authorization to establish and operate within a temporary block. This bulletin itemizes the block limits, the authority for movements, any speed or special restrictions, and the instructions the crew must follow while inside the TBS. It’s the formal mechanism for temporarily changing normal block arrangements to accommodate work or other conditions, and trains must have this bulletin before entering the area.

The other options don’t establish a TBS: NORAC Operating Rules lay out general rules for movement but don’t create a specific temporary block; the Timetable lists scheduled blocks and routine information rather than a temporary restriction; a Track Barricade is a physical setup, not an authorization document.