Final answer:
Rapid entry Knox key boxes at metro stations are usually located at main entrances, ticketing areas, or other strategic points for quick emergency access.
Step-by-step explanation:
Rapid entry Knox key boxes are secure systems used by emergency services to gain access to buildings, campuses, and other locked or restricted areas during an emergency. In the context of metro stations, these boxes are typically located in areas that are easily accessible to emergency responders, but not in the way of the general public. While the exact location can vary by the design of the station, they are often found near the station's main entrance, by ticketing areas or at other strategic points that allow for quick access to all parts of the station.
All metro stations are equipped with Rapid entry Knox key boxes. These key boxes are located at various points within the metro stations for easy access. They are typically placed near entrances, exits, or security checkpoints.