What is the required minimum clearance if two or more cars are operating in adjacent hoistways?

The required minimum clearance of 2 inches when two or more cars are operating in adjacent hoistways is essential for several reasons. This specified distance provides enough space to prevent physical contact or collision between the moving parts of each elevator car, which is critical for ensuring safety.

Adequate clearance reduces the risk of mechanical interference, which could lead to equipment malfunction or failure. Additionally, it allows for smoother operation and maintenance of the elevators, as technicians need to access areas around each car safely. By adhering to this minimum requirement, the design promotes reliability and safety in elevator operations, ultimately contributing to the protection of passengers and personnel.

The specified clearance is a standard practice in elevator design and operation codes to ensure industry-wide safety and efficiency.