What common feature differentiates passenger elevators from freight elevators?

The distinguishing feature between passenger elevators and freight elevators primarily lies in their design and intended usage, which is why the correct answer emphasizes that freight elevators have higher weight capacities and are specifically designed to transport goods rather than individuals.

Freight elevators are built to accommodate heavy loads, often involving bulky or oversized items, making their weight-bearing capabilities significantly higher than that of standard passenger elevators. This structural difference ensures safety and efficiency when transporting goods, as the design is optimized for strength and durability rather than passenger comfort.

Moreover, while passenger elevators do commonly have side doors and are typically smaller, this aspect is more about convenience and usage rather than the fundamental difference in purpose. Similarly, freight elevators are not necessarily designed to operate at higher speeds when compared to passenger elevators, as their primary function is centered on load capacity rather than transportation speed.

Understanding these distinctions is crucial in recognizing how elevators are tailored to meet different needs in commercial and industrial settings.