When second mining, how many roadways are permissible for the final pushout?

The permissible conditions for roadways during second mining are crucial for ensuring safety and operational efficiency. In accordance with mining regulations, having only one roadway, with a maximum width of 16 feet, provides a controlled environment that can facilitate effective monitoring and management of the area as mining operations progress.

This limitation allows for a clear pathway that mitigates risks associated with increased widths, such as potential collapse or structural weaknesses. A single wide roadway can also simplify the logistics of moving equipment and personnel, ensuring that the area remains focused and less prone to accidents, ultimately enhancing overall safety procedures.

In contrast, the other options either exceed the accepted width or suggest multiple roadways, which could complicate the mining process and compromise structural integrity. Designing mining operations with these considerations in mind is crucial for compliance with regulations and for promoting a safe working environment.