What information is unnecessary when requesting an EC-1e line 1 authority?

When requesting an EC-1e line 1 authority, the information that is deemed unnecessary is related to the specific purpose of the work being performed. This is because the primary focus of the authority request is to ensure safety and proper coordination of train movements on the track in use. The other elements, such as the direction of travel needed, the specific track name or number, and the length of time necessary to complete the work, are critical for effective communication and ensuring that safety protocols are upheld. By providing information on the direction of travel and specific track details, train dispatchers can manage movements more effectively, and knowing the time required helps in scheduling safely. Thus, while the purpose of the work is important for internal records, it does not directly impact the safety measures or the operational logistics needed for the authority being requested.