Which term refers to the main route from the working section to the surface located in intake air?

The term "Primary Escapeway" refers specifically to the main route that provides access from the working section of an underground mine to the surface while also facilitating the movement of intake air. This is essential for ensuring that air quality is maintained in the working areas and allows for safe and efficient evacuation in case of an emergency.

The Primary Escapeway plays a critical role in the overall ventilation system of the mine, as it is designed to be unobstructed and readily accessible. By being the designated path for both airflow and escape, it ensures miners can quickly exit the working areas while still allowing fresh air to enter.

In contrast, emergency exiting pertains to alternative routes used during emergency situations but may not be suitable for regular use or may not ensure optimal ventilation. A feeder path is generally used to channel materials or coal rather than for personnel movement or air flow. A secondary exit may serve as an additional egress route but is not the main or primary means of accessing the surface. Therefore, understanding the role of the Primary Escapeway is crucial for ensuring both safety and effective mine operations.