Is the speed indicated on the bottom or top of the warning board?

The speed indicated on a warning board is always found at the bottom. This convention ensures clarity and consistency for those operating within the railway environment, as it enables a quick reference for train drivers and personnel. The bottom placement of the speed information follows a standard practice, allowing operators to easily identify the necessary speed limit when approaching a warning board.

This system helps to minimize confusion, especially in situations where multiple signals or warnings may be present, ensuring that the most critical information – the speed limit – is immediately accessible without distraction. Therefore, the choice of the bottom placement signifies its importance and adherence to established safety protocols in railway operations.