How should train sheet entries be maintained in terms of ink color?

Maintaining train sheet entries in black or blue ink is crucial for clarity and compliance with standard operational procedures. These colors are typically preferred because they produce a strong contrast against the white paper, making it easier for train dispatchers and other personnel to read the entries. Using black or blue ink helps ensure that the information remains clear and legible, which is essential for safety and effective communication within railroad operations.

In contrast, alternatives like red or green ink can be used in specific situations but are not standard for all entries. Red ink, for instance, might be reserved for highlighting certain critical issues or warnings, whereas green is often associated with less formal notes or situations. Graphite pencils, while allowing for easy corrections, can lead to problems with legibility over time and may smudge or fade, making it difficult to ensure the accuracy of train records. Finally, having no specific requirements for ink color could lead to inconsistencies in documentation practices, increasing the risk of miscommunication and errors in train operations.