What type of permission is required for passing a temporary block limit?

Passing a temporary block limit requires written authorization primarily to ensure safety and accountability in the operations of the railway. Written permission serves as a formal and traceable confirmation that it is safe to proceed beyond the block limit. This process prevents misunderstandings and ensures that all parties involved are aware of the actions being taken, thereby reducing the risk of accidents or incidents.

In railway operations, particularly in areas where temporary block limits are established due to maintenance or other safety concerns, written authorization also provides a clear documentation trail. This can be important for regulatory compliance and safety audits. Written authorization ensures that the conductor or operator has received the necessary permission from the appropriate authority, ensuring that all safety protocols have been adhered to before proceeding.

While verbal or electronic authorizations can be used in some situations, they may lack the same level of formality and clarity that written authorization provides, making written permission the preferred method for passing temporary block limits.